[Fungi • 2026] Pleurocordyceps cornusynnemata • Taxonomy and Phylogeny of Pleurocordyceps (Hypocreales: Polycephalomycetaceae) associated with Ants and Cicadas from Malaysia, including A New Species and New Records

  

Pleurocordyceps cornusynnemata 

in Shahbaz, Mohadden, Rong, Wei et Seelan, 2026.

 DOI: doi.org/10.11646/phytotaxa.750.4.1

 

Abstract

Pleurocordyceps is a group of hyperparasites that infects invertebrates, plants, and other fungi. It belongs to the family Polycephalomycetaceae, a newly established family separated from Ophiocordycipitaceae, order Hypocreales which includes several genera such as Dingleyomyces, Paradingleyomyces, Perennicordyceps, Pleurocordyceps, and Polycephalomyces. Pleurocordyceps currently comprises 26 species reported from South American and Asian regions In Asia, Malaysia has diverse forest ecosystems and rich fungal diversity; however, no previous studies have been reported on the occurrence of Pleurocordyceps species. The aim of the study is to explore the Pleurocordyceps diversity tropical rainforests of Malaysia using morpho-molecular analyses. During a fungal survey in Malaysia, fungicolous fungus associated with ants and cicadas nymphs were collected and subjected to morphological and molecular assessments. Two genetic loci—the internal transcribed spacer (ITS) region and the translation elongation factor 1-alpha (TEF-1α) gene—were used to construct both individual and concatenated phylogenetic trees. The study describes a new species, Pleurocordyceps cornusynnemata sp. nov. (BORH/F03651) from an ant, and two new records of P. aurantiaca (BORH/F03651), and P. nipponica (UTHM-CEF003.1) from Diptera and cicada nymph, respectively. These findings expand the knowledge of the geographic distribution of Pleurocordyceps and provide the first baseline data for the genus in Malaysia, thereby improving understanding of the diversity and evolutionary relationships within Polycephalomycetaceae.

arthropod hosts, entomopathogenic fungi, Pleurocordyceps, synnema, three taxa, typification, Fungi

Pleurocordyceps cornusynnemata sp. nov. 

MUHAMMAD SHAHBAZ, FIRDZA ZULKARNAIN MOHADDEN, JEREMIAH SIA YIAO RONG, YAP JING WEI and JAYA SEELAN SATHIYA SEELAN. 2026. Taxonomy and Phylogeny of Pleurocordyceps (Polycephalomycetaceae, Hypocreales) associated with Ants and Cicadas from Malaysia, including A New Species and New Records.  Phytotaxa. 750(4); 219-237. DOI: doi.org/10.11646/phytotaxa.750.4.1 [2026-04-09]

[Fungi • 2026] Leptobacillium geminatum • A New Species of Leptobacillium and Additional Records of Simplicillium and Leptobacillium (Ascomycota: Cordycipitaceae) from Sabah, Malaysia

Leptobacillium geminatum

in Shahbaz, De Wint, Rong, Wei, Koid, Fayle, Tan, Abdullah, Palaniveloo et Seelan, 2026.

DOI: doi.org/10.1002/nzb2.70107 

Abstract

Simplicillium and Leptobacillium are entomopathogenic fungal genera frequently associated with arthropods in tropical ecosystems and considered promising candidates for biological pest control. However, the diversity of these genera in tropical regions, particularly in Malaysia, has not been systematically investigated in the context of their taxonomy and phylogenetic relationships. This study aimed to investigate the taxonomic diversity and phylogenetic relationship of Simplicillium and Leptobacillium using integrated morphological and molecular analyses. During a survey of entomopathogenic fungi conducted in Malaysia from 2022–2023, parasitized insects were collected, including spiders and wasps infected by entomopathogenic fungi. Phylogenetic analyses were performed using concatenated datasets of the internal transcribed spacer (ITS) and translation elongation factor 1-alpha (TEF1-α) gene to construct phylogenetic trees. The study identified one novel species, Leptobacillium geminatum sp. nov., isolated from a spider. In addition, five species are reported here as new records for Malaysia: S. formicae, L. leptobactrum. symbioticum, and L. coffeanum isolated from spiders and S. puwenense, isolated from a wasp. Morphological characteristics together with molecular phylogenetic evidence supported the taxonomic placement of these taxa. These findings represent the first comprehensive documentation of Simplicillium and Leptobacillium species from Malaysia, significantly expanding the known diversity and geographical distribution of these entomopathogenic fungi in Southeast Asia.

Keywords: concatenation, fungal diversity, morphology, Northern Borneo, taxonomy

 Leptobacillium geminatum sp. nov.

Muhammad Shahbaz, Frederik C. De Wint, Jeremiah Sia Yiao Rong, Yap Jing Wei, Qian-Qun Koid, Tom Fayle, Yee Shin Tan, Sumaiyah Abdullah, Kishneth Palaniveloo, Jaya Seelan Sathiya Seelan. 2026. A New Species of Leptobacillium and Additional Records of Simplicillium and Leptobacillium from Sabah, Malaysia. New Zealand Journal of Botany. 64(2); DOI: doi.org/10.1002/nzb2.70107 [02 June 2026] 

[Funga • 2024] Hydnum cremeum, H. roseotangerinum, L. subalpina, ... (Agaricomycetes: Hydnaceae) • New Contributions on Species Diversity of Genus Hydnum and Lentaria s.l. in China

 

Hydnum cremeum  L.P. Tang, L.J. Su & T.J. Yu,  
H. flavosquamosum L.P. Tang & L.J. Su, 
H.roseoalbum L.P. Tang, L.J. Su & W.H. Zhang, 
H. roseotangerinum L.P. Tang & L.J. Su, 

in Su, Yu, Xue, Zhang, Xu, Xia, Li, Lei, Dong, Zhang et Tang, 2024. 

 DOI: doi.org/10.3390/jof10120824 

 

Abstract

Southwest China is extremely rich in fungal resources, and a large number of new taxa have been discovered in recent years. In the present study, we examined 26 specimens of the genera Hydnum and Lentaria sensu lato, most of which were obtained in Yunnan Province. Through ITS-nrLSU-tef1 phylogenetic analysis, combined with morphological studies and geographic analyses, five new species were described, viz. Hydnum cremeum, H. flavoquamosum, H. roseoalbum, H. roseotangerinum, and L. subalpina. Furthermore, we also supplied new information on some known species, including host plants and new distribution records. We re-examined the holotype sequences of two known taxa, H. flabellatum and H. pallidomarginatum, treating H. flabellatum as a synonym of H. pallidomarginatum. Additionally, a key to Lentaria s.l. in China was provided.

Keywords: taxonomy; species delimitation; coralloid fungi; edible mushroom; spinous fungi 

Macroscopic and microscopic features of Hydnum cremeum. (a–c) Basidiomata, (a,c) from MHKMU TJ Yu 197, Holotype; (b) from MHKMU WH Zhang 599; (d) Basidiospores; (e) Basidia and Basidioles; (f) Pileipellis. Bars (d) = 10 μm; (e) = 20 μm; (f) = 50 μm.
Macroscopic and microscopic features of Hydnum flavosquamosum from MHKMU LP Tang 3454 (Holotype). (a–c) Basidiomata; (d) Basidiospores; (e) Basidia and Basidioles; (f) Pileipellis. Bars (d) = 10 μm; (e) = 20 μm; (f) = 50 μm. 
 Macroscopic and microscopic features of Hydnum roseotangerinum from MHKMU LP Tang 3458 (Holotype). (a,b) Basidiomata; (c) Basidiospores; (d) Basidioles; (e) Basidia; (f) Pileipellis. Bars (c) = 10 μm; (d,e) = 20 μm; (f) = 50 μm.

Hydnum cremeum L.P. Tang, L.J. Su & T.J. Yu sp. nov.  

奶油齿菌

Etymology—Latin ‘cremeum’ = cream, refers to the color of basidiomata.

Diagnosis—Distinct from other species within Hydnum mainly by its small basidiomata with a warm cream to yellowish white pileus, globose to subglobose basidiospores, and occurrence in subalpine mixed forests.

Hydnum flavosquamosum L.P. Tang & L.J. Su sp. nov.  

黄鳞齿菌

Etymology—Latin ‘flavo’ = yellow, ‘squamosum’ = scaly, refers to the pileus covering with yellowish brown scales.

Diagnosis—Distinct from other species within Hydnum mainly by its light yellow to light brownish-orange pileus with slightly dark scales, context becoming pale brownish on exposure, adnexed, spines, subglobose to broadly ellipsoid (Q = 1.05–1.23) basidiospores, and erectly arranged hyphae in pileipellis.

Hydnum roseoalbum L.P. Tang, L.J. Su & W.H. Zhang sp. nov. 

粉白齿菌

Etymology—Latin ‘roseo’ = pink, ‘album’ = white, refers to the color of its spines. 

Diagnosis—Distinct from other species within Hydnum by its creamy to whitish pileus, pale pink spines, five-spored basidia, globose basidiospores, erectly arranged hyphae in pileipellis, and occurrence in subalpine broad-leaved forests.

Hydnum roseotangerinum L.P. Tang & L.J. Su sp. nov. 

粉橙齿菌

Etymology—Latin ‘roseo’ = pink, ‘tangerinum’ = orange, refers to the color of spines.

Diagnosis—Distinct from other species within Hydnum by its brownish orange pileus, pinkish orange spines, globose to subglobose, sometimes broadly ellipsoid basidiospores, and occurrence in mixed subalpine forests.

Lentaria subalpina L.P. Tang, L.J. Su & T.J. Yu sp. nov.  

亚高山木瑚菌

Etymology—The Latin ‘subalpina’ refers to this species growing in subalpine forests.

Diagnosis—Distinct from other Lentaria species mainly due to the grayish orange to brownish orange basidiomata, sometimes carbonized, black branch apices, elongated ellipsoid to cylindrical basidiospores (9.0–11.0 × 4.8–5.7 μm), and growing in dead branches of Abies or Picea in subalpine forests.

 Linjie Su, Taijie Yu, Rou Xue, Wenhao Zhang, Chang Xu, Xing Xia, Jia Li, Hanchi Lei, Yang Dong, Guoli Zhang and Liping Tang. 2024. New Contributions on Species Diversity of Genus Hydnum and Lentaria s.l. in China. J. Fungi. 10(12), 824; DOI: doi.org/10.3390/jof10120824 [27 November 2024]

[Funga • 2025] Gymnopus sinobrevipes, G. flavoalbus & G. yunnanensis (Agaricomycetes: Agaricales: Omphalotaceae) • Species Diversity of Gymnopus Section Levipedes in Southwestern China, with a Description of Three New Species

 

(a–c) Gymnopus flavoalbus ((a,b) Holotype, KUN-HKAS144470, (c) KUN-HKAS144471);
(d–f) G. sinobrevipes ((d,e) Holotype, KUN-HKAS108042, (f) KUN-HKAS108101);
(g–i) G. yunnanensis ((g,h): Holotype, KUN-HKAS108570, (i) KUN-HKAS108610).

W.C. Feng, Y.Y. Cui and Q. Cai, 

in Feng, Li, Cui et Cai. 2025.

DOI: doi.org/10.3390/jof11020088 

Bars = 2 cm.

 

Abstract

Species of Gymnopus sect. Levipedes are challenging to delimitate due to the morphological similarity among different taxa. In this study, morphological characteristics, molecular phylogenetic data, and ecological traits were integrated to investigate the species diversity of this section of southwestern China. A total of 17 species were documented in the region, including three new species, namely G. sinobrevipes, G. flavoalbus, G. yunnanensis, and two species new to the studied area—G. bicolor and G. ocior. Detailed descriptions and illustrations of the three new species are presented, along with comparisons to closely related or morphologically similar species. The remaining species included five that were originally described from southwestern China, four that were first identified from Europe, two from the Republic of Korea, and one from North America. Six of these species, originally described outside of China, currently lack molecular evidence to support their distributions in southwestern China. Finally, 11 species with morphological and molecular evidence were recognized in southwestern China. A key to these species is also provided.

Keywords: Agaricales; Omphalotaceae; phylogeny; morphology; three new taxa; taxonomy

 Basidiomata of novel species in Gymnopus sect. Levipedes from southwestern China.
(a–c) G. flavoalbus ((a,b) Holotype, KUN-HKAS144470, (c) KUN-HKAS144471);
 (d–f) G. sinobrevipes ((d,e) Holotype, KUN-HKAS108042, (f) KUN-HKAS108101);
 (g–i) G. yunnanensis ((g,h): Holotype, KUN-HKAS108570, (i) KUN-HKAS108610).

Bars = 2 cm.

Gymnopus flavoalbus W.C. Feng, Y.Y. Cui and Q. Cai, sp. nov. 

Etymology: Referring to the pale yellow center and whitish margin of the pileus.

Diagnosis: Similar to G. macropus Halling, but differs by its light-colored pileus, furcate cheilocystidia, and pileipellis with broadly clavate to spherical terminal cells without pigments.

Gymnopus sinobrevipes W.C. Feng, Y.Y. Cui and Q. Cai, sp. nov. 

Etymology: Referring to the species from China and having short stipe.

Diagnosis: Similar to G. tiliicola J.J. Hu, B. Zhang, and Yu Li, but differs in its smaller pileus and cheilocystidia with knobs.

Gymnopus yunnanensis W.C. Feng, Y.Y. Cui and Q. Cai, sp. nov. 

Etymology: Referring to the locality, Yunnan Province, China, where the holotype was collected.

Diagnosis: Similar to G. dryophiloides, but differs in its oblong to subcylindrical basidiospores and the absence of rhizomorphs at the stipe base.

 Wei-Chao Feng, Xiao-Yan Li, Yang-Yang Cui and Qing Cai. 2025. Species Diversity of Gymnopus Section Levipedes in Southwestern China, with a Description of Three New Species. J. Fungi. 11(2), 88; DOI: doi.org/10.3390/jof11020088 [23 January 2025]

[Fungi • 2026] Leucoinocybe danxiashanensis & L. haizhuensis (Basidiomycota: Agaricales) • Two mycenoid Species from southern China

 

[A-B] Leucoinocybe danxiashanensis Ming Zhang, T.H. Li & Xiang L. Chen,
[C-D] L. haizhuensis Ming Zhang, C.X. Fan & W.X. Xia,

in Xia, Wang, Chen, Sun, Fan, Li, Deng, Yue et Zhang, 2026. 

DOI: doi.org/10.3897/mycokeys.129.174720

Abstract

Two new species of Leucoinocybe from southern China are described, illustrated, and compared with phenotypically similar and phylogenetically related species. Morphologically, L. danxiashanensis sp. nov. is characterized by its mycenoid basidiomata, light brown to brownish orange pileus with faintly yellow striations, decurrent lamellae, abundant lageniform to obclavate and thin-walled cystidia on pileus and stipe surface, and broadly ellipsoid to subamygdaliform basidiospores; and L. haizhuensis sp. nov. is characterized by its mycenoid basidiomata, brown, light brown to yellowish white pileus with pubescent, 2-spored basidia, ovoid, diverse cheilocystidia and elliptical to broadly elliptical basidiospores. Phylogenetic analyses based on sequences of the nuclear ribosomal large subunit (nrLSU) and the nuclear ribosomal internal transcribed spacer (nrITS) supported them as two distinct species of Leucoinocybe.

Key words: Mycenoid, new taxon, phylogeny, Porotheleaceae, taxonomy

Basidiomata of Leucoinocybe danxiashanensis. A. Collection GDGM 80114 (holotype); B. Collection GDGM 80184. Scale bars: 10 mm (A, B). 
Basidiomata of Leucoinocybe haizhuensis. A, B. Collection GDGM 102360 (holotype); C. Collection GDGM 95340; D. Collection GDGM 99420. Scale bars: 10 mm (A–D).

Leucoinocybe danxiashanensis Ming Zhang, T.H. Li & Xiang L. Chen, sp. nov.

Leucoinocybe haizhuensis Ming Zhang, C.X. Fan & W.X. Xia, sp. nov.

 Wen-Xiao Xia, Chao-Qun Wang, Xiang-Lian Chen, Rui-Hua Sun, Cun-Xiang Fan, Tai-Hui Li, Wang-Qiu Deng, Hai-Mei Yue and Ming Zhang. 2026. Two mycenoid Species of Leucoinocybe (Agaricales, Basidiomycota) from southern China.  MycoKeys. 129: 325-343. DOI: doi.org/10.3897/mycokeys.129.174720  [12 Mar 2026]

[Funga • 2025] Hydnellum hangzhouense (Agaricomycetes: Thelephorales) • Morphology and Molecular Phylogeny reveal One New Species from Eastern China

 

Hydnellum hangzhouense X.P. Fan, Y.F. Sun & B.K. Cui, 

in Fan, Song, Xu, Sun et Cui, 2025. 

 DOI: doi.org/10.11646/phytotaxa.711.1.3  

 Researchgate.net/publication/393904694

Abstract

As ectomycorrhizal fungi, the species in Hydnellum can form a mutualistic symbiosis with plant roots to promote the restoration of forest vegetation and the stability of forest ecosystems. Some Hydnellum fungi also have edible and medicinal values generating considerable economic benefits. In this study, a new species of Hydnellum collected from Hangzhou, eastern China, was described by utilizing morphological and phylogenetic analyses. Morphologically, Hydnellum hangzhouense was characterized by its light-colored and relatively thick pileus, simple septated generative hyphae, and subglobose to ellipsoid basidiospores. The phylogenetic analysis was conducted based on the combined sequences dataset (ITS + nLSU + nSSU + rpb2). The results indicated that H. hangzhouense formed an independent lineage which is closely related to H. crassipileatum and H. chocolatum. The detailed description, illustrations and phylogenetic tree for demonstrating the taxonomic positions of H. hangzhouense were provided.

Key words: macrofungi, multi-gene phylogeny, novel species, stipitate hydnoids, taxonomy, Fungi

Basidiomata of Hydnellum hangzhouense (Holotype, Wu 1679).

 Scale bars: 2 cm.

Microscopic structures of Hydnellum hangzhouense (Holotype, Wu 1679).
 A) Basidiospores. B) Hyphae from context. C) Basidia and basidioles. D) Hyphae from spines. E) Hyphae from the inner layer of stipe. F) Hyphae from the surface layer of stipe.

Hydnellum hangzhouense X.P. Fan, Y.F. Sun & B.K. Cui sp. nov.

 

XIANG-PING FAN, CHANG-GE SONG, YI-HUA XU, YI-FEI SUN and BAO-KAI CUI. 2025. Morphology and Molecular Phylogeny reveal One New Species of Hydnellum (Thelephorales) from Eastern China.  Phytotaxa. 711(1); 43-60. DOI: doi.org/10.11646/phytotaxa.711.1.3 [2025-07-22] 

 Researchgate.net/publication/393904694_new_species_of_Hydnellum_from_Eastern_China

[Fungi • 2026] Leucocoprinus roseus (Basidiomycota: Agaricaceae) • Molecular Phylogenetic and Morphological Analyses revealed A New Species from Punjab, Pakistan

Leucocoprinus roseus W. Akram, Saba & Asif,  

in Akram, Saba, Asif, Nawaz, F. Ullah, Samen, Maula et M. Ullah, 2026. 

  DOI: doi.org/10.1002/njb.05015

 

Abstract

In this article, we describe a new fungal species, Leucocoprinus roseus, collected in Canal View Park, District Mandi Bahauddin, Punjab, Pakistan. The species is proposed as new based on detailed morphological observations and molecular phylogenetic analysis using nuclear ribosomal DNA internal transcribed spacer (nrITS) sequences. In a phylogenetic reconstruction, L. roseus forms a distinct clade clearly separated from related taxa. It is characterized by small basidiomata, a plano-convex pileus with dark red center becoming pale reddish toward the margins, center covered with squarrose scales, broadly ellipsoid amygdaliform basidiospores and versiform cheilocystidia. A comprehensive description, illustrations, and results of the phylogenetic analysis are provided, along with a comparison with morphologically and genetically related species.

Keywords: molecular phylogeny, Mandi Bahauddin, nrITS, saprotrophic, taxonomy

Macro–Morphological features (a–f) Fresh field pictures of basidiomata of Leucocoprinus roseus.

Photos by: Muhammad Asif and Wajahat Akram.

Leucocoprinus roseus W. Akram, Saba & Asif sp. nov. 

 

Wajahat Akram, Malka Saba, Muhammad Asif, Ayesha Nawaz, Fahim Ullah, Warda Samen, Fazli Maula and Mohsin Ullah. 2026. Molecular Phylogenetic and Morphological Analyses revealed A New Species, Leucocoprinus roseus (Agaricaceae, Basidiomycota), from Punjab, Pakistan. Nordic Journal of Botany.  DOI: doi.org/10.1002/njb.05015 [28 January 2026]

[Funga • 2025] Phaeoclavulina aurea & P. fulva (Agaricomycetes: Gomphaceae) • Two New Species from North China based on morphological and phylogenetic analysis

   

[A–C] Phaeoclavulina aurea; [D–F] P. fulva  

Y. Gao, X. Tong, & C.L. Hou, 

in Tong, Gao, Wang, Zhou et Hou, 2025.  

DOI: doi.org/10.3897/mycokeys.120.138950

Abstract

Two new species, Phaeoclavulina aurea and P. fulva, were discovered and described from North China. Identification was based on morphological observations combined with phylogenetic analysis of nrITS–nrLSU sequences. Phaeoclavulina aurea is characterized by its pale yellow to golden yellow basidiomata, brownish black coloration with dark tips at maturity, and basidiospores bearing truncate spines. Phaeoclavulina fulva is distinguished by its dirty orange basidiomata, pale yellow stipe surface, and basidiospores ornamented with rounded warts. This study enriches the species diversity of Phaeoclavulina in North China.

Key words: Clavarioid fungi, new taxa, systematics, taxonomy

Morphology of Basidiomata.
A–C. Phaeoclavulina aurea (A, B. BJM 344955 holotype; C. BJTC L007);
D–F. Phaeoclavulina fulva (D. BJTC C274 holotype; E. BJTC ZH0015; F. BJTC ZH1138).

Scale bars: 1 cm.

 Phaeoclavulina aurea Y. Gao, X. Tong, & C.L. Hou, sp. nov.

Etymology. The epithet “aurea” refers to the yellow to golden yellow basidiomata.

 Phaeoclavulina fulva Y. Gao, X. Tong, & C.L. Hou, sp. nov.

Etymology. The epithet “fulvus” refers to the dirty orange to yellowish-brown basidiomata.

 Xin Tong, Yue Gao, Hai-Qi Wang, Hao Zhou and Cheng-Lin Hou. 2025. Two New Species of Phaeoclavulina (Gomphaceae, Gomphales) from North China based on morphological and phylogenetic analysis. MycoKeys. 120: 157-172. DOI: doi.org/10.3897/mycokeys.120.138950 [29 Jul 2025]

[Fungi • 2020] Leucoagaricus callainitinctus • A New Species of Leucoagaricus section Piloselli (Agaricaceae) from tropical India

 

Leucoagaricus callainitinctus K.P.D. Latha, K.N.A. Raj & Manim.,

in Deepna Latha, Anil Raj et Manimohan, 2020.

DOI: doi.org/10.11646/phytotaxa.442.2.6 

 Researchgate.net/publication/341293876

Abstract

An interesting species of lepiotaceous fungi, Leucoagaricus callainitinctus sp. nov., is described from Kerala State, India based on morphology and molecular phylogeny. This species is distinguished by basidiocarps that turn dark turquoise on bruising/handling or reacting with NH4OH. A phylogenetic study was conducted based on Maximum likelihood analysis of nrITS sequences. In the phylogram, the new species nested as a distinct lineage in a group, which consisted predominantly of members of section Piloselli of the genus Leucoagaricus. A comprehensive description, photographs of the basidiocarps and the microscopic structures, comparisons with phenetically similar and phylogenetically related species and a phylogram showing the placement of the new species are provided.

Agaricales, Basidiomycota, lepiotoid fungi, phylogeny, taxonomy, Fungi

Leucoagaricus callainitinctus (CAL 1799, holotype).
A-B, D. Basidiocarps in their natural habitat; C. Basidiocarps showing their partial veil; E. Lamellae turning green when reacting with 10 % NH 4 OH.

Scale bars: A = 5 mm, B-E = 10 mm. Photos by: K. N. Anil Raj

Leucoagaricus callainitinctus sp. nov.

K. P. DEEPNA LATHA, K. N. ANIL RAJ and Patinjareveettil MANIMOHAN. 2020. Leucoagaricus callainitinctus—A New Species of Leucoagaricus section Piloselli (Agaricaceae) from tropical India. Phytotaxa. 442(2); 111–120. DOI: doi.org/10.11646/phytotaxa.442.2.6 

 Researchgate.net/publication/341293876_Leucoagaricus_callainitinctus-a_new_species_from_tropical_India

[Fungi • 2025] Sirindhornea siamensis (Basidiomycota: Agaricomycetes) • A New Sequestrate Boletoid Genus of Boletaceae from Thailand

 

Sirindhornea siamensis  

in Lueangjaroenkit, Doungsin, Jangsantear, Boonwanno, Sintawarak, Sahathippayakul, Supapongsri, Sakolrak, Himaman et Sutthinon, 2025. 

เห็ดก้อนอำพันเจ้าฟ้า | DOI: doi.org/10.58837/tnh.25.8.267496

Abstract

This study investigates sequestrate boletes from southern Thailand and presents a morphologically distinctive specimen with a strong cantaloupe-like odor. Detailed morphological and molecular phylogenetic analyses, utilizing the internal transcribed spacer (ITS), large subunit ribosomal RNA (LSU) and RNA polymerase II second largest subunit (RPB2) genes were performed to determine its taxonomic position. Nonetheless, the new sequestrate bolete exhibited a distinctive morphological features, including a scaly peridium, a characteristic cantaloupe-like odor at maturity. Together with molecular evidence, these characteristics clearly distinguish it from other sequestrate boletoid (Chamonixia, Durianella, Octaviania, Rossbeevera, and Turmalinea). These findings support the recognition of a novel genus within the subfamily Leccinoideae. Therefore, we propose a new genus and new species, Sirindhornea siamensis, for this sequestrate bolete species.

Keywords: fungal taxonomy, new genus, Leccinoideae, sequestrate boletes

  

Sirindhornea gen. nov.

เห็ดก้อนอำพันเจ้าฟ้า

Sirindhornea siamensis sp. nov. 

 Etymology.–The species epithet siamensis is named from the former name of Thailand, refers to the geographical origin of this new species.

Classification.–Leccinoideae,  Boletaceae,  Boletales, Agaricomycetes, Agaricomycotina, Basidiomycota

Piyangkun Lueangjaroenkit, Nootcharee Doungsin, Panrada Jangsantear; Tanyaporn Boonwanno; Phanin Sintawarak, Ananya Sahathippayakul, Vassana Supapongsri, Baramee Sakolrak, Winanda Himaman, Pornsawan Sutthinon. 2025. Sirindhornea siamensis, A New Sequestrate Boletoid Genus of Boletaceae from Thailand.  Tropical Natural History. Suppl. 8;  481-492. DOI: doi.org/10.58837/tnh.25.8.267496 

[Fungi • 2025] Calathella sirindhorniae (Basidiomycota: Agaricales) • A New Cyphelloid Fungus from Thailand

Calathella sirindhorniae 

 in Lueangjaroenkit, Sahathippayakul, Supapongsri, Aowpitak, Sangrattanaprasert, Ngernsaengsaruay et Pinruan, 2025. 

 Tropical Natural History. Suppl. 8; 

เห็ดโกงกางจิ๋วสิรินธร  ||  DOI: doi.org/10.58837/tnh.25.8.267354  

Abstract

A novel cupulate basidiomycete fungus was discovered during a survey of mangrove-associated fungi in Chanthaburi and Phetchaburi Provinces, Thailand. This species, found exclusively on decaying Rhizophora mucronata hypocotyls in intertidal zones, forms minute fruiting bodies and shows close morphological and molecular resemblance to Calathella mangrovei Jones & Agerer, 1992. Phylogenetic analyses of ITS and LSU rDNA regions confirmed its placement within Calathella, as a distinct sister lineage to C. mangrovei. Therefore, these isolates represent a novel species, for which the name Calathella sirindhorniae sp. nov. is proposed.

Keywords: Calathella sirindhorniae, cyphelloid fungus, fungal taxonomy, new species, mangrove

Calathella sirindhorniae (BBH 50085, holotype).
A.under a stereomicroscope, showing the overall structure. The basidiomata, composed of white hyphae, have a brown surface colouration primarily due to mangrove sediment. Scale bar: 1 mm. B.Side view of the basidiomata under the SEM, revealing detailed surface features and structural arrangement. Scale bar: 1 mm. C.Top view under the SEM, highlighting the surface morphology. Scale bar: 500 μm.

Calathella sirindhorniae sp. nov. 

Etymology.–‘sirindhorniae’ (si.rin.dhorn.ni.ae) this species is named to honour Her Royal Highness Princess Maha Chakri Sirindhorn, in recognition of her deep interest in natural history and her significant contri-butions to biodiversity and environmental conservation in Thailand.

Piyangkun Lueangjaroenkit, Ananya Sahathippayakul, Vassana Supapongsri, Thithawat Aowpitak, Jiroat Sangrattanaprasert, Chatchai Ngernsaengsaruay, Umpawa Pinruan. 2025. Calathella sirindhorniae (Agaricales, Basidiomycota), A New Cyphelloid Fungus from Thailand.  Tropical Natural History. Suppl. 8;  460-471. DOI: doi.org/10.58837/tnh.25.8.267354 

 𝐶𝑎𝑙𝑎𝑡ℎ𝑒𝑙𝑙𝑎 𝑠𝑖𝑟𝑖𝑛𝑑ℎ𝑜𝑟𝑛𝑖𝑎𝑒 หรือ เห็ดโกงกางจิ๋วสิรินธร

 ตั้งชื่อชนิดตามพระนามาภิไธยของสมเด็จพระกนิษฐาธิราชเจ้า กรมสมเด็จพระเทพรัตนราชสุดาฯ สยามบรมราชกุมารี เพื่อถวายพระเกียรติเนื่องในโอกาสเฉลิมฉลอง 70 พรรษา และในฐานะเจ้าฟ้านักอนุกรมวิธานและความหลากหลายทางชีวภาพแห่งประเทศไทย โดยเห็ดโกงกางจิ๋วสิรินธรค้นพบที่สวนพฤษศาสตร์นานาชาติรัชกาลที่ 9 จังหวัดจันทบุรี และโครงการศึกษาวิจัยและพัฒนาสิ่งแวดล้อมแหลมผักเบี้ย อันเนื่องมาจากพระราชดำริ บ้านแหลม จังหวัดเพชรบุรี 

[Fungi • 2025] Metschnikowia sirindhorniae f.a., sp. nov. & Moniliella princeps sp. nov. • Two Novel Yeasts Species Isolated from Toddy Palm (Borassus flabellifer L.) Inflorescence Sap in Thailand

 

Metschnikowia sirindhorniae  

in Jindamorakot, Am-In, Kaewwichian, Khunnamwong et Limtong, 2025.

Tropical Natural History. Suppl. 8;  

DOI: doi.org/10.58837/tnh.25.8.267713 

Abstract

Two strains, YSP-519 and YSP-478, respectively representing novel ascomycetous and basidiomycetous yeast species, were obtained from toddy palm inflorescence sap collected in Thailand. The ascomycetous yeast strain YSP-519 was closely related to Metschnikowia agaves CBS 7744T. There were 1.6% nucleotide substitutions (9 nucleotide substitutions and 2 gaps out of 555 nt) in the D1/D2 domains of the LSU rRNA gene and 0.7% nucleotide substitutions (3 nucleotide substitutions out of 454 nt) in the ITS regions. The basidiomycetous yeast strain YSP-478 was closely related to Moniliella pollinis CBS 461.67T. It had 0.5 % nucleotide substitutions (3 nucleotide substitutions out of 554 nt) in the D1/D2 domains of the LSU rRNA gene and 2.0% nucleotide substitutions (9 nucleotide substitutions out of 473 nt) in the ITS regions. Phylogenetic analysis based on the concatenated sequences of the ITS regions and the D1/D2 domains confirmed that the two strains represent two new species. The name Metschnikowia sirindhorniae f.a., sp. nov. is proposed for YSP-519T), and Moniliella princeps sp. nov. is proposed for YSP-478T. The holotypes of M. sirindhorniae and Mo. princeps are TBRC 10642T and TBRC 10641T, respectively and the ex-type are CGMCC 2.6079T and CGMCC 2.6078T, respectively. The MycoBank numbers of M. sirindhorniae and Mo. princeps are MB858878 and MB858879, respectively.

Keywords: Metschnikowia sirindhorniae f.s., sp. nov., Moniliella princeps sp. nov., novel yeast species, Thailand

Metschnikowia sirindhorniae sp. nov. YSP-519T.
A. budding cells in YM broth after 3 days at 25 °C (bar, 10 μm);
B. pseudomycelium formed on PDA after 7 days at 25 °C (bar, 10 μm);
C. pseudomycelium in YM broth after 14days at 25 °C (bar, 10 μm).

 Metschnikowia sirindhorniae f.a., sp. nov. 

ยีสต์น้ำหวานดอกตาลโตนดสิรินธร

 Moniliella princeps sp. nov.

ยีสต์น้ำหวานดอกตาลโตนดเจ้าฟ้าหญิง

Sasitorn Jindamorakot, Somjit Am-In, Rungluck Kaewwichian, Pannida Khunnamwong and Savitree Limtong. 2025. Metschnikowia sirindhorniae f.a., sp. nov. and Moniliella princeps sp. nov., Two Novel Yeasts Species Isolated from Toddy Palm (Borassus flabellifer L.) Inflorescence Sap in Thailand.  Tropical Natural History. Suppl. 8;  439-448. DOI: doi.org/10.58837/tnh.25.8.267713 

[Funga • 2025] Laccaria carminostipes, L. mangshanensis & L. sinolateritia • Three New Species and Two New Records of the Genus Laccaria (Basidiomycota: Agaricales) from subtropical China based on morphological and multi-locus phylogenetic evidence

Basidiomata of Laccaria carminostipes (a-c);
L. mangshanensis (d-f); L. sinolateritia (g-i)

 Y.D. Xu & Z.M. He,;

L. japonica Popa & K. Nara (j-k); L. versiforma H.J. Cho & Y.W. Lim (l).   

in Xu, Zhang, Chen et He, 2025

DOI: doi.org/10.3897/mycokeys.123.156526 

Scale bars: 1 cm.

 

Abstract

Laccaria is a large genus within the family Hydnangiaceae, and many potential species remain to be discovered in China. The present study describes three new species, L. carminostipes, L. mangshanensis and L. sinolateritia, and reports two new records, L. japonica and L. versiforma, which were originally discovered in Japan and Korea, respectively. These species were collected from subtropical mixed forests and identified based on morphological and phylogenetic evidence. Our phylogenetic analysis of the concatenated nucleotide sequences of ITS, LSU, TEF1 and RPB2 demonstrated that the three new species each formed a distinct clade, clearly separated from other known Laccaria species. A detailed description and illustrations of these species are also provided.

Key words: Laccaria, morphological characters, phylogenetic analysis, spore ornamentation, taxonomy

Basidiomata of Laccaria carminostipes (a. MHHNU 31553; b. MHHNU 31552; c. MHHNU 34706, respectively);
L. mangshanensis (d, e. MHHNU 8850; f. MHHNU 8856, respectively);
L. sinolateritia (g, h. MHHNU 11956; i. MHHNU 11958, respectively);
L. japonica (j. MHHNU 9589; k. MHHNU 34711, respectively); L. versiforma (l. MHHNU 10896).

Scale bars: 1 cm.

 Laccaria carminostipes Y.D. Xu & Z.M. He, sp. nov. 

Etymology. ‘carminostipes’ (Latin), referring to the carmine stipe surface.

 Laccaria mangshanensis Y.D. Xu & Z.M. He, sp. nov.

 Laccaria sinolateritia Y.D. Xu & Z.M. He, sp. nov.

Etymology. ‘sino’ referring to China, ‘lateritia’ (Latin) referring to its red to brownish orange fruiting body.

You-Di Xu, Ping Zhang, Zuo-Hong Chen and Zheng-Mi He. 2025. Three New Species and Two New Records of the Genus Laccaria (Agaricales, Basidiomycota) from subtropical China based on morphological and multi-locus phylogenetic evidence. MycoKeys. 123: 147-170. DOI: doi.org/10.3897/mycokeys.123.156526 

[Funga • 2025] Agaricus aurantifibrillosus, A. fafuinus & A. shenzhenensis • Three New Species of Agaricus (Agaricales: Agaricaceae) from southern China

[A-B] Agaricus aurantifibrillosus;
[C-D] A. fafuinus;
[E-F] A. shenzhenensis

P.H. Liu & S.E. Wang, 

in Wang, Chen, Huang, Lin et Liu, 2025. 

 DOI: doi.org/10.3897/mycokeys.119.154278 

Abstract

The genus Agaricus is the most species-rich genus within the Agaricaceae, comprising more than 500 species globally. Here, we describe three new species of Agaricus based on morphological and multi-locus (ITS + nrLSU + tef1-α) phylogenetic analyses: Agaricus aurantifibrillosus, A. fafuinus and A. shenzhenensis. Agaricus aurantifibrillosus and A. fafuinus were collected at Fujian province, while A. shenzhenensis was discovered in Shenzhen City, Guangdong Province. The morphological descriptions of each new species are accompanied by basidiomata photographs, and illustrations of microscopic structures.

Key words: Agaricus, morphology, multi-locus phylogeny, new species, taxonomy

The photographs of fresh basidiomata of Agaricus species in this study.
A. A. aurantifibrillosus (FFAAS 3390); B. A. aurantifibrillosus (FFAAS 3391);
C. A. fafuinus (FFAAS 3393); D. A. fafuinus (FFAAS 3394);
E. A. shenzhenensis (FFAAS 3397); F.  A. shenzhenensis (FFAAS 3398).

Scale bars: 1 cm.

 Agaricus aurantifibrillosus P.H. Liu & S.E. Wang, sp. nov.

 

Etymology. aurantifibrillosus (Latin), referring to the pileus covered with arranged orange (5A8) or brownish yellow (5C8) fibrillose squamules.

 Agaricus fafuinus P.H. Liu & S.E. Wang, sp. nov.

 

Etymology. Derived from the acronym FAFU (Fujian Agriculture and Forestry University), where the type specimens of this species were collected.

 Agaricus shenzhenensis P.H. Liu & S.E. Wang, sp. nov.

 

Etymology. shenzhenensis (Latin), meaning from Shenzhen city where the holotype specimen was collected.

 Shi-en Wang, Si-ang Chen, Hai-chen Huang, Dong-mei Lin and Peng-hu Liu. 2025. Three New Species of Agaricus (Agaricaceae, Agaricales) from southern China. MycoKeys. 119: 47-66. DOI: doi.org/10.3897/mycokeys.119.154278