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| 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. |
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
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| 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]
