[Botany • 2025] Piper hongheense (Piperaceae) • A New Species from Yunnan, China

 

Piper hongheense W.J. Zhao, C.Y. Hao & N.H. Xia, 

in Fan, Zhao, F. Su, Li, Ji, B.-F. Su, Xia et Hao, 2025.

DOI: doi.org/10.11646/phytotaxa.697.1.9

Photographs by R. Fan & C.Y. Hao, Illustration by F. Su

Abstract

Piper hongheense (Piperaceae), a new species from Yunnan Province of China, is here described and illustrated. Morphologically it is similar to Piper boehmeriifolium and Piper boehmeriifolium var. glabricaule, from which it can be easily distinguished by the combination of characters: height 0.7–1 m, leaves oblong-lanceolate to lanceolate, 10–16 cm × 2.5–4 cm, infructescences ±0.6 cm in diam., berries and bracts white when mature. The description of the new species includes photographs, a detailed description, notes on etymology, distribution and habitat, as well as a comparison with morphologically similar species.

Magnoliids, Asia, Honghe Prefecture, morphology, taxonomy, tropical flora

Line drawing of Piper hongheense W.J. Zhao, C.Y. Hao & N.H. Xia.
A branch with female infructescence; B adaxial surface of monopodial leaf on the left, and abaxial surface of sympodial leaf on the right; C detail of the leaf base and the prophyll; D magnified view of male inflorescence; E magnified view of the longitudinal section of male inflorescence; F stamen; G magnified view of female inflorescence; H magnified view of infructescence.

Illustration by F. Su based on the holotype.

Piper hongheense W.J. Zhao, C.Y. Hao & N.H. Xia, sp. nov.
 A habit; B adaxial surface of leaf; C abaxial surface of leaf; D adaxial surface of leaf base and petiole; E abaxial surface of leaf base and petiole;
F male spike; G female spike; H mature infructescence; I close-up of portion of the male spike; J close-up of portion of the female spike (some bracts were removed); K close-up of portion of the mature infructescence.

Photographs by R. Fan & C.Y. Hao based on the holotype.

Piper hongheense W.J. Zhao, C.Y. Hao & N.H. Xia, sp. nov. 

Erect subshrub, 0.7–1 m high, aromatic, dioecious. Stem greenish, terete, 3–4 mm in diameter, young branchlet sparsely puberulent, glabrescent, finely striate when dry, swollen at node. Leaf dimorphism present, prophyll 1–2 cm long. Sympodial leaf membranous to chartaceous, finely glandular, oblong-lanceolate to lanceolate, 10–16 cm × 2.5–4 cm, base subequilaterally truncate to oblique, one side rounded, the other tapered and acute; apex acutely acuminate to long acuminate, adaxially green and glabrous, abaxially pale greenish and sparsely puberulent on veins; petioles glabrous, 5–7 mm long; venation plinerved, veins 5–9, reticulate, uppermost distal pair of secondary veins alternate, arising 1–3 cm above base, reaching leaf apex, others basal. Monopodial leaf exhibits morphological similarities to sympodial leaf, with the primary distinction being that the base of monopodial leaf is predominantly ...

Rui FAN, Wen-Jing ZHAO, Fan SU, Yang LI, Xun-Zhi JI, Bao-Fen SU, Nian-He XIA and Chao-Yun HAO. 2025. Piper hongheense (Piperaceae), A New Species from Yunnan, China. Phytotaxa. 697(1); 129-137. DOI: doi.org/10.11646/phytotaxa.697.1.9 [2025-04-10]

[Botany • 2025] Piper kiminensis (Piperaceae) • A New Species with shingling variegated leaves from Arunachal Pradesh, India

 Piper kiminensis  

in Gajurel, Yakang, Kashung et Borah, 2025.

 DOI: doi.lorg/10.11646/phytotaxa.689.2.10 

 facebook.com: Dipu Dipankar BORAH

 

Abstract

Piper kiminensis (Piperaceae), a new species, is described from Arunachal Pradesh, northeastern India, along with notes on its habitat, ecology, and conservation status. A dioecious, semi-woody climber with distinct dimorphic branches, it is distinguished from other climbing pipers by its vegetative branches possessing shingled, variegated leaves. The new species does share some similarities with P. obtusissimum in its vegetative branches and P. betleoides in its fertile branches, so a table with detailed morphological features for all three species is provided for easy comparison. For aid in recognition, color photographs are also included. The molecular studies based on the ITS sequence also confirmed the distinctness of the new species from other taxa. Moreover, it shows little similarity with any of the existing Piper species.

Conservation, Critically Endangered, Dioecious, Kimin, Papum Pare, Taxonomy, molecular phylogeny, Magnoliids

  

Piper kiminensis sp. nov. 

Padma Raj GAJUREL, Tage YAKANG, Soyala KASHUNG and Dipankar BORAH. 2025. Piper kiminensis (Piperaceae) A New Species with shingling variegated leaves from Arunachal Pradesh, India.  Phytotaxa. 689(2); 269-276. DOI: doi.lorg/10.11646/phytotaxa.689.2.10 [2025-02-24]

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[Botany • 2025] Piper saurodermus (Piperaceae) • A New Peltate-leaved Species restricted to the Tropical Rainforest of southern Mexico

 

Piper saurodermus  Ortiz-Rodr. & J.R.Carral, 

in Ortiz-Rodriguez, Carral-Domínguez, Amancio, Hurtado-Reveles et Martínez-Velarde, 2025. 

DOI: doi.org/10.1007/s12225-024-10236-x 

 x.com/AndrsErnestoOr1   

facebook.com/KewBulletin 

Summary

Piper saurodermus (Piperaceae), a new peltate-leaved species endemic to Mexico, is described and illustrated. In the context of the genus, the new species presents a unique combination of morphological features. These include its creeping habit, strongly bullate and densely pubescent leaves with an arcuate venation pattern, short stipitate inflorescences, glabrous flower bracts and the ornamented surface of its fruits. Based on the criteria established by IUCN, it is provisionally determined that the species is Critically Endangered [CR B2ab(ii,iii,v)].

Key Words: Conservation, floristic refuge, karst, neotropics 

Piper saurodermus.
A habit, a creeping understory plant; B peltate leaf with strongly bullate surface and arcuate venation pattern; C short stipitate inflorescence; D close-up of the inflorescence, note the glabrous bracts; E infructescence and ornamented fruit (inset).

 photos: A – B Leopoldo Hurtado Reveles; C – E Rodrigo Carral Domínguez.

Piper saurodermus Ortiz-Rodr. & J.R.Carral sp. nov. 

Andrés Ernesto Ortiz-Rodriguez, José Rodrigo Carral-Domínguez, Guadalupe Amancio, Leopoldo Hurtado-Reveles and María Fernanda Martínez-Velarde. 2025. Piper saurodermus (Piperaceae), A New Peltate-leaved Species restricted to the Tropical Rainforest of southern Mexico.  Kew Bulletin. DOI: doi.org/10.1007/s12225-024-10236-x

  x.com/AndrsErnestoOr1/status/1883158225790607647

  x.com/KewBulletin/status/1883808131979112691

  facebook.com/SistematicayEvoluciondePlantasTropicales/posts/1115278847057688

[Botany • 2024] Peperomia dryadica (Piperaceae) • A New karstic Species from the Brazilian Atlantic Forest

 

Peperomia dryadica Marcusso,

in Marcusso, Melo et Forzza, 2024. 

DOI: 10.1007/s12225-024-10217-0 

 x.com/KewBulletin

Summary

Peperomia is known for its remarkable diversity, the Atlantic Forest in Brazil being particularly noteworthy for its high levels of richness and endemism. Floristic research in the Atlantic Forest karst ecosystems has revealed new discoveries in the genus, based on fieldwork and thorough study of herbaria collections. Peperomia dryadica Marcusso is here described and characterised as entirely glabrous except for the distal third of the leaf margins which is ciliolate, light green stems when fresh, alate distal internodes, leaves decussate, opposite or alternate basally and opposite or 3-whorled distally, lamina oblanceolate, obovate or rarely elliptic and nerves sunken adaxially and raised abaxially. Peperomia dryadica is found solely in the Vale do Ribeira region of São Paulo state, in Southeast Brazil, which holds the largest limestone outcrops in the Atlantic Forest.

Key Words: Limestone, Parque Estadual Intervales (PEI), Parque Estadual Turístico do Alto Ribeira (PETAR), Piperales, Saxicolous

Peperomia dryadica Marcusso, sp. nov.

Etymology. The specific epithet refers to the Dryades, the nymphs in Greek mythology, inhabitants and protectors of the forests. It was also the name that Von Martius (1906) used to refer to the Atlantic Forest, in the first phytogeographical scheme of Brazilian territory.

  

Gabriel Mendes Marcusso, Pablo Hendrigo Alves De Melo and Rafaela Campostrini Forzza. 2024. Peperomia dryadica (Piperaceae), A New karstic Species from the Brazilian Atlantic Forest. Kew Bulletin. DOI: doi.org/10.1007/s12225-024-10217-0

  x.com/KewBulletin/status/1826895679823749263

[Botany • 2024] Piper motuoense (Piperaceae) • A New Species from Xizang, China

 

Piper motuoense X.W.Qin, F.Su & C.Y.Hao,

in Su, Qin, Fan, Yan, Ji et Hao. 2024. 

墨脱胡椒  ||  DOI: 10.3897/phytokeys.238.115494

Abstract

Piper motuoense X.W.Qin, F.Su & C.Y.Hao, a new species of Piperaceae from Xizang, China, is described and illustrated in this paper. The new species resembles P. yinkiangense and P. anisotis, but it can be readily distinguished from the compared species by several characteristics. Gonophyll leaves are chartaceous and the leaf secondary vein count is 7–9, with the outermost pair being very weak when there are nine veins. Additionally, the apical pair arises 2–4 cm above the base and the leaf base is asymmetrical, with bilateral petioles that cling and heal together. Pistillate floral bracts are sessile, with 3, 4 or 5 stigmas. The description of the new species includes photographs, detailed descriptions, notes on etymology, distribution and habitat, as well as comparisons with morphologically similar species.

Key words: Asia, Paleotropical flora, Piperales, Sino-Himalaya, taxonomy

Line drawing of Piper motuoense X.W.Qin, F.Su & C.Y.Hao, sp. nov.
A branch with infructescence B branch with staminate spike C magnified view of pistillate spike D magnified view of staminate spike E magnified view of infructescence F detail of the indument along the secondary nerves of the abaxial leaf surface G adaxial surface of gonophyll leaf H adaxial surface of gonophyll leaf base I abaxial surface of gonophyll leaf J abaxial surface of gonophyll leaf base K cross-section of infructescence L stamen M carpel N seed.

Illustration by Fan Su, based on the holotype.

Piper motuoense X.W.Qin, F.Su & C.Y.Hao, sp. nov.
A habit B branch with infructescence C branch with staminate spike D branch with trophophyll leaf E adaxial and abaxial surface of gonophyll leaf F adaxial and abaxial surface of gonophyll leaf base G detail of the indument along the mid-vein of the gonophyll leaf adaxial and abaxial surface H pistillate spike I staminate spike J infructescence K close-up of portion of the staminate spike L close-up of portion of the infructescence M cross-section of infructescence N seed (side view).

Photographs by Fan Su.

 Piper motuoense X.W.Qin, F.Su & C.Y.Hao, sp. nov.

 

Diagnosis: The new species is morphologically similar to P. yinkiangense, but can be easily distinguished from the latter in several aspects. The leaf-blades 12.5–18 × 3.5–6.5 cm, elliptic or ovate to lanceolate (vs. 11–14 × 6.5–8.5 cm, oblique-ovate), chartaceous (vs. membranous), abaxially sparsely villous along the mid-vein (vs. abaxially sparsely hispidulous), gonophyll leaves 7–9 secondary vein pairs, the outer pair arising 2–4 cm above base (vs. 8–9, outer pair arising 1–2 cm above base), base bilaterally clinging to the petiole and overlap together (vs. basal sinus 1–2 mm wide on side of longer and wider lobe, 4–5 mm wide on other side, bilaterally free for 2–3 mm), floral bracts sessile (vs. petiolate) and stigmas 3, 4 or 5 (vs. 4). P. motuoense also resembles P. anisotis in the shape of leaves and fruit, but differs from the latter in the leaves vein 7–9 (vs. 5–7), leave base bilateral clinging to petiole and overlap together (vs. bilateral free for 1–2 mm) (Table 1).

Etymology: The specific epithet refers to its distribution, Motuo County, Xizang, in China.

Vernacular name: Chinese: 墨脱胡椒 (mò tuō hú jiāo). ‘Mò Tuō’ is a place name, which is the literal translation of the specific epithet motuoense and ‘hú jiāo’ is the Chinese name of Piper.

 Fan Su, Xiao-Wei Qin, Rui Fan, Lin Yan, Xun-Zhi Ji and Chao-Yun Hao. 2024. Piper motuoense, A New Species of Piperaceae from Xizang, China. PhytoKeys. 238: 85-94. DOI: 10.3897/phytokeys.238.115494

[Botany • 2023] Piper kerrii, P. phangngaense & P. rugocarpum (Piperaceae) • Three New Species, Two New Records and additional Taxonomic Notes of Piper from Thailand

Piper rugocarpum Y.Banchong and Suwanph.,

Piper kerrii Suwanph. and Y.Banchong, 

Piper phangngaense Suwanph. and Hodk., 

in Suwanphakdee, Karapan, Banchong et Hodkinson, 2023.

DOI: 10.1111/njb.04099 

Researchgate.net/publication/375281009

  facebook.com/CSuwanph

Abstract

We revised the genus Piper (Piperaceae) for the forthcoming volume of the Flora of Thailand. Three new species, namely P. kerrii, P. phangngaense and P. rugocarpum are described and illustrated. In addition, two records of species new to Thailand, P. laosanum and P. obtusissimum, are presented. New complete taxonomic descriptions of P. crassipes and P. obtusissimum are provided. We also designate lectotypes and epitypes of P. laosanum and P. obtusissimum, respectively. An emended key to species including the new species, new records for Thai Piper species and additional taxonomic notes are provided.

Keywords: asian Piper, Flora of Thailand, new species, Piperaceae, tropical plants

Piper kerrii Suwanph. and Y.Banchong, sp. nov.

Etymology This species is named in honour of A. F. G. Kerr (1877– 1942), who is recognized as the ‘founding father’ of Thai botany. He was the first botanist to collect Piper specimens from Ranong province.

Piper phangngaense Suwanph. and Hodk. sp. nov.

Etymology The specific epithet of this species refers to its type locality (Sri Phang-Nga National Park, Phangnga province, Thailand).

Piper rugocarpum Y.Banchong and Suwanph., sp. nov.

Etymology The specific epithet refers to the distinguishing character of the fruit surface which is rugate when dry.

New records for Thailand 

Piper laosanum C.DC. (De Candolle 1910)

Phitsanulok province, Phu Hin Rong Kla National Park

Piper obtusissimum Miq. (Miquel 1843–1844).

Narathiwat province, Hala-Bala Wildlife Sanctuary

 

Chalermpol Suwanphakdee, Sunate Karapan, Yuthana Banchong and Trevor R. Hodkinson. 2023. Three New Species, Two New Records and additional Taxonomic Notes of Piper (Piperaceae) from Thailand. Nordic Journal of Botany. e04099. DOI: 10.1111/njb.04099

 Researchgate.net/publication/375281009_Three_new_species_of_Piper_from_Thailand

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[Botany • 2023] Piper alwynii (Piperaceae) • A New Species from the Cordillera del Cóndor at the Border of Peru and Ecuador

Piper alwynii M. A. Jaram.,

 

in Jaramillo, 2023. 

DOI: 10.3417/2023862 

 facebook.com: Alejandra Jaramillo 

Abstract

Piper alwynii M. A. Jaram. (Piperaceae), a new species occurring in sandstone outcrops of the Cordillera del Cóndor at the border of Ecuador and Peru, is here described and illustrated. Morphologically it shows similarities to species in the Radula clade. Piper alwynii is similar to P. purdiei C. DC. but differs in having leaves pinnately nerved within the lower two thirds of the midvein, nerves pubescent on the abaxial surface, villous peduncles, and spikes 2–2.7 cm long. An identification key for 32 northern South American Piper L. species with small (≤ 10 cm) leaves is presented.

Keywords: Piperales, Radula clade, sandstone outcrop vegetation, tropical montane forests

M. Alejandra Jaramillo. 2023. Piper alwynii (Piperaceae), A New Species from the Cordillera del Cóndor at the Border of Peru and Ecuador.  Novon, A Journal for Botanical Nomenclature. DOI: 10.3417/2023862

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[Botany • 2023] Piper quinchasense (Piperaceae) • A New Species with peltate leaves from Serranía de las Quinchas, Colombia

Piper quinchasense M. A. Jaram., 

in Jaramillo, Rodríguez-Duque et Escobar-Alba, 2023. 

 DOI: 10.3897/phytokeys.227.101405

Abstract

Piper quinchasense is described and illustrated as a new species occurring in the understory of wet montane forest of the middle Magdalena Valley in Colombia, the easternmost portion of the Chocó Region. Its relationships are discussed with related taxa from the Macrostachys clade. An identification key for 35 Neotropical Piper species with peltate leaves is provided.

Key words: Boyacá, Chocó Region, Macrostachys clade, Piperales, tropical montane forests

Piper quinchasense M. A. Jaram.
 A habit B magnified view of inflorescence C stilt roots D sheathing petiole E adaxial surface of leaves F abaxial surface of leaves and inflorescence.

Photographs by D. Rodríguez-Duque.

Piper quinchasense M. A. Jaram.
A sympodial branch, showing both the abaxial and adaxial surface of the leaves B magnified view of inflorescence C floral diagram D anther E floral bract, abaxial view F floral bract view from above G fruit H seed I magnified view of leaf abaxial surface J sheathing petiole K magnified view of leaf adaxial surface.

Illustration by Ariadna Valenzuela, based on M. Escobar-Alba 764, and photographs by D. Rodríguez-Duque.

 Piper quinchasense M.A.Jaram., sp. nov.

 

Description: Piper quinchasense is similar to P. parianum, it differs from the latter in having all leaf blades peltate (vs. leaves deeply lobed to peltate), and inflorescence peduncle 4–5 cm long, (vs. peduncle 1–2.7 cm long).

Etymology: The epithet quinchasense, refers to Serranía de las Quinchas, the type locality for this species. According to locals, Quinchas derives from the indigenous groups “Quinchos” that inhabited the region.

 M. Alejandra Jaramillo, Dayro Rodríguez-Duque and Magda Escobar-Alba. 2023. A New Species of Piper (Piperaceae) with peltate leaves from Serranía de las Quinchas, Colombia. PhytoKeys. 227: 9-24. DOI: 10.3897/phytokeys.227.101405

Resumen: Piper quinchasense se describe e ilustra como una nueva especie que ocurre en el sotobosque de bosques húmedos montanos del valle medio del Magdalena en Colombia, la porción más oriental del Chocó Biogeográfico. Se discuten sus relaciones con otras especies del clado Macrostachys. Se presenta una clave de identificación para 35 especies de Piper Neotropical con hojas peltadas.

Palabras claves: bosque montano tropical, Boyacá, Chocó Biogeográfico, clado Macrostachys, Piperales

[Botany • 2023] Piper svenningii (Piperaceae) • A New Species from Ecuador, Colombia, and Perú

Piper svenningii 

in Trujillo et Balslev, 2023. 

  DOI: 10.1111/njb.03897

 instagram.com/JCSvenning

Abstract

Recent revision of the Piper collections at Aarhus Univ. Herbarium (AAU), collected in Ecuador, revealed specimens of undescribed species and species that were mentioned as endemic in the catalog of plants of Colombia Piper dolichostylum, P. littlei, P. morelianum, P. sanandresense and P. tarquiense resulting of incomplete curation of herbarium collections in institutions that launched expeditions to the Amazon and the Andes. Piper svenningii (Piperaceae) from the eastern slopes of the Andes and adjacent lowlands in Colombia, Ecuador and Peru, is described as a new species and illustrated, and a morphological comparison with similar species is made. Piper svenningii differs from P. costatum and P. japurense by its leaves which have induplicate margins, versus leaf margins flat and not induplicate. It differs from Piper rurrenbaqueanum by having leaves that are pinnately nerved throughout with 10–12 pairs of secondary nerves, versus 4–6 pairs of secondary nerves that are pinnately arranged in the basal two thirds of the lamina.

Keywords: Piperaceae, east Andean slope, Napo province, South America

 

William Trujillo and Henrik Balslev. 2023. Piper svenningii – A New Species from Ecuador, Colombia, and Perú. Nordic Journal of Botany. e03897. DOI: 10.1111/njb.03897 

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[Botany • 2022] New Species and A Revision of the Genus Peperomia (Piperaceae) in Thailand

เบี้ยพ่อตา  ||  Peperomia ranongensis Suwanph., Hodk. & Chantar., 

in Suwanphakdee, Hodkinson & Chantaranothai, 2022. 

 DOI: 10.20531/tfb.2022.50.2.11

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Abstract

We update the descriptions of seventeen native species of Peperomia in Thailand, including a new species, P. ranongensis, and a detailed morphological description for the uncommon species P. kotana based on Thai specimens. We provide a generic description, a key to all the species and provide lectotypifications for P. bavina, P. heyneana, P. laticaulis, P. nakaharae and P. reflexa var. parvifolia. Five species, P. heptaphylla, P. masuthoniana, P. multisurcula, P. ranongensis and P. sirindhorniana, are endemic to Thailand. Peperomia pellucida is a common pantropical species. Eight species, namely P. cavaleriei, P. dindygulensis, P. heyneana, P. laevifolia, P. masuthoniana, P. moulmeiniana, P. multisurcula and P. sirindhorniana have a high potential for development as ornamental plants.

Keywords: Flora of Thailand, lectotypification, Piperales, taxonomy, tropical plants

A. Peperomia dindygulensis Miq.; B. P. kotana C.DC.;
C. P. masuthoniana Suwanph. & Chantar.; D. P. moulmeiniana C.DC.;
E. inflorescences of P. moulmeiniana C.DC.; F. P. pellucida (L.) Kunth;
 G. P. portulacoides (Lam.) Dietr.; H. P. tetraphylla (G.Forst) Arn.

(photos by C. Suwanpahkdee).

Peperomia ranongensis Suwanph., Hodk. & Chantar.:
 A. plant with inflorescences; B. a portion of infructescence; C. 3-verticillate; D. opposite-decussate; E. fruit image from light microscope; F. fruit image from scanning electron microscope; G. papillae imaged from scanning electron microscope (photos by C. Suwanpahkdee).

Chalermpol Suwanphakdee, Trevor R. Hodkinson and Pranom Chantaranothai. 2022. New Species and A Revision of the Genus Peperomia (Piperaceae) in Thailand. Thai Forest Bulletin (Botany). 50(2); 104–119.  DOI: 10.20531/tfb.2022.50.2.11

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[Botany • 2021] Peperomia callejasii (Piperaceae) • A New Species from the Eastern Slopes of the Andes, northern South America

  Piper callejasii W. Trujillo & M. A. Jaram., 

in W. Trujillo, E.T. Trujillo & Jaramillo, 2021. 

DOI: 10.3417/2021659 

Researchgate.net/publication/355081071 

Abstract

A new species of Piper L. (Piperaceae) from the eastern slopes of the Andes in Colombia and Peru, P. callejasii W. Trujillo & M. A. Jaram., is described and illustrated, and morphological comparisons with similar species are discussed. Piper callejasii is distinguished by its stigmas being sessile, rather than on a long style as in four similar species. Its conservation status is suggested to be Endangered.

Keywords: Colombia, Peru, Piperaceae

  Piper callejasii W. Trujillo & M. A. Jaram.
A. Sympodial branch; lower and upper leaf surfaces and spikes. -B. Detail of the petiole, node, and internode. -C. Fruit in side view. -D. Magnified view of the infructescence. -E. Floral bract view from above. -F. Detail of the leaf base and prophyll. -G. Detail of the indument along the midvein and secondary nerves of the lower leaf surface. -H. Papillae on the proximal portion of the midvein and secondary nerves of the lower leaf surface. Illustration by Isabella Garzón based on Trujillo et al. 1061.

  Piper callejasii W. Trujillo & M. A. Jaram.
A. Inflorescence; monopodial and sympodial leaves. B. Sympodialbranch; upper leaf surfaces and infructescence.

Photos from Trujillo et al. 1061 by W. Trujillo.

 Piper callejasii W. Trujillo & M. A. Jaram. sp. nov.

Etymology. This species is named in honor of Ricardo Callejas. Ricardo has worked on Piper taxonomy for more than three decades. Not only is he immensely knowledgeable about species in the Neotropics (mostly) and Asia (some), but he has been incredibly instrumental in empowering young botanists, like us, to study Piper in an integrative manner. Christiane Ehringhaus called him the “Pope of Piper” (Ehringhaus, 1997); we prefer the “Father of Piper” because of his knowledge and warm welcome to anyone dedicating time to study these captivating plants. 

William Trujillo, Edwin Trujillo Trujillo and M. Alejandra Jaramillo. 2021. Piper callejasii (Piperaceae), A New Species from the Eastern Slopes of the Andes, Northern South America. Novon. 29: 200–205. DOI: 10.3417/2021659 

Researchgate.net/publication/355081071_Piper_callejasii_a_New_Species_from_the_Andes_Northern_South_America

[Botany • 2020] Peperomia calcicola (Piperaceae) • A New Species from Limestone Outcrops of the southeastern Brazilian Atlantic Forest

Peperomia calcicola Marcusso,

in Marcusso, de Melo & Lombardi. 2020. 

DOI:  10.11646/phytotaxa.446.4.5 

  Researchgate.net/publication/341828072 

Abstract

Peperomia calcicola is here described as a new species from the Atlantic Forest of São Paulo state, southeastern Brazil. The species was found on limestone outcrops in the understory of rainforest in the Alto Ribeira State Tourist Park (PETAR). It is characterized by the unique combination of pilose to pubescent stems and leaves, the leaves 7–9-nerved, slightly discolorous, ovate to large lanceolate blades with acute apex and cordate to rounded base, and the spadix of 0.5–1.7 cm long. Here we present description, color photos, and taxonomic comparisons with the morphologically close taxa.

Keywords: Alto Ribeira State Tourist Park (PETAR), Multipalmata, Neotropical Region, Piperales, seed plants, Magnoliids

Holotypus of Peperomia calcicola Marcusso. 

 (from G.M. Marcusso et al. 1720, HRCB).

Peperomia calcicola Marcusso.
 A. Habit erect-caespitose. B. Detail of the abaxial leaf surface, showing the whitish green abaxial side, and dark green adaxial side. C. Detail of the spike showing the rachis green with floral bracts green, withe stamens, and green pistils with white stigma.

 (from G.M. Marcusso et al. 1720; 

photos by Gabriel Mendes Marcusso).

Peperomia calcicola Marcusso, sp. nov.

Distribution and habitat:―Known only from the type locality, in Apiaí municipality, São Paulo state, southeastern Brazil. The population recorded is located within the Alto Ribeira State Tourist Park (PETAR), on limestone outcrops in rainforest, in the Atlantic Forest Domain.  

Etymology:—The specific epithet calcicola refers to the rocky limestone outcrops where this species grows.

 Peperomia calcicola habitat.
A. View of the limestone outcrops where P. calcicola occurs in Alto Ribeira State Tourist Park (PETAR), São Paulo state, southeastern Brazil, covered by rainforest.
B. View of the cave where P. calcicola grows.

photos by Gabriel Mendes Marcusso

 

Gabriel Mendes Marcusso, Pablo Hendrigo Alves de Melo and Julio Antonio Lombardi. 2020. Peperomia calcicola (Piperaceae), A New Species from Limestone Outcrops of the southeastern Brazilian Atlantic Forest. Phytotaxa. 446(4).4; 245-252. DOI:  10.11646/phytotaxa.446.4.5 

  Researchgate.net/publication/341828072_Peperomia_calcicola_a_new_species_from_limestone_outcrops_of_Brazilian_Atlantic_Forest

[Botany • 2018] Peperomia ekakesara (Piperaceae) • A New Species from Mathikettan Shola National Park, Kerala, India

 Peperomia ekakesara Syam & S. Nampy

in Sasi & Nampy, 2018.

DOI:  10.11646/phytotaxa.364.3.8

 Researchgate.net/publication/327159947 

Abstract

Peperomia ekakesara (Piperaceae) is described and illustrated as a new species from Mathikettan shola National Park in southern Western Ghats, Kerala, India. Information is given on the distribution, ecology, phenology, and conservation status of this new species. A key for the identification of south Indian species is provided.

Keywords: Magnoliids, Peperomia, Piperaceae, southern Western Ghats, Kerala

FIGURE 1.  Peperomia ekakesara Syam & S. Nampy 
A. Habit; B. & C. Leaves; D. Spike: Portion enlarged; E. Bract: see the clawed nature; F. Androecium & Gynoecium; G. Stamen; H. Fruit

(A-H from S. Syam Radh & Santhosh Nampy 151707).

FIGURE 2. Peperomia ekakesara Syam & S. Nampy 
A. Habit; B. Flowering twig; C. Leaves: Adaxial view; D. Leaves: Abaxial view; E. Young spike enlarged; F. Mature spikes; G. Flower; H. Bract; I. Androecium & Gynoecium; J. Stamen: Dorsal view; K. Stamen: Ventral view; L. Ovary; M. Fruits: see fruiting axis showing fruits and pits of fallen fruits; N. Mature fruits

 (A-N from S. Syam Radh & Santhosh Nampy 151707).

Peperomia ekakesara Syam & S. Nampy sp. nov.

Etymology:—The epithet ‘ekakesara’ is derived from Sanskrit, ‘eka’ means one and ‘kesara’ refers to stamen, the whole referring to the monandrous condition.  

Syam Radh Sasi and Santhosh Nampy. 2018. Peperomia ekakesara: A New Species of Piperaceae from Mathikettan Shola National Park, Kerala, India. Phytotaxa. 364(3); 283-288. DOI:  10.11646/phytotaxa.364.3.8

 Researchgate.net/publication/327159947_A_new_species_of_Peperomia_from_Mathikettan_shola_National_Park_Kerala_India

[Botany • 2020] A Synopsis of Thai Piper (Piperaceae)

Piper of Thailand 

in Suwanphakdee, Simpson, Hodkinson & Chantaranothai, 2020.

 DOI: 10.20531/tfb.2020.48.2.08

(photos by C. Suwanphakdee). 

ABSTRACT

All native and introduced Thai Piper are enumerated to include 46 species and two varieties. Typifications for accepted names and synonyms are made where necessary. Family and generic descriptions, based on Thai collections, are provided. A key to species and varieties and relevant synonymy are also presented. Additional morphological characters for P. smitinandianum are summarised. Data on the distribution, ecology, vernacular names, utilization and collections of each taxon in Thailand are presented in the standard Flora of Thailand format.

Keywords: Distribution, Flora of Thailand, key to species, tropical plant, taxonomy

Figure 1. A. Piper arcuatum Blume; B. P. argyrites Ridl. ex C.DC.; C. P. baccatum Blume; D. P. betle L.;
E. P. boehmeriifolium (Miq.) C.DC. var. boehmeriifolium; F. P. durionoides Suwanph. & Chantar.; G. P. griffithii C.DC.; H. P. kongkandanum Suwanph. & Chantar.

(photos by Suwanphakdee).

Figure 2. A. Piper kurzii Ridl.; B. P. laetispicum C.DC.; C. P. lanatum  Roxb.; D. P. leptostachyum Wall. ex Miq.;
E. P. lonchites Roem. & Schult.; F. P. peepuloides Roxb.; G. P. rostratum Roxb.; H. P. smitinandianum Suwanph. & Chantar.

(photos by Suwanphakdee).

Chalermpol Suwanphakdee, David A. Simpson, Trevor R. Hodkinson and Pranom Chantaranothai. 2020.   A Synopsis of Thai Piper (Piperaceae). Thai Forest Bulletin (Botany). 48(2), 145-183. DOI: 10.20531/tfb.2020.48.2.08