Samsoniella doupengshanensis Q. Zeng & W.H. Chen, 2025

Zeng, Qian, Chen, Xu, Chen, Wan-Hao & Tian, Wei-Yi, 2025, Samsoniella doupengshanensis, a new species from Guizhou, China, Phytotaxa 682 (2), pp. 161-169 : 166-167

Samsoniella doupengshanensis Q. Zeng & W.H. Chen , sp. nov. ( Fig. 2 )

MycoBank: 855740

Etymology:— Referring to the location, Doupeng Mountain, where the type specimen was collected.

Type:— CHINA. Guizhou: Qiannan Buyi and Miao Autonomous Prefecture, Duyun City, Doupeng Mountain ( 26°20′08″N, 107°17′34″E), on a pupa ( Lepidoptera ), 30 July 2022, Qian Zeng, GZAC DY1052 ( holotype), ex-type living cultures, DY10521.

Colonies on PDA attaining a diameter of 25–27 mm after 14 days at 25 °C, white, consisting of a basal felt, floccose hyphal overgrowth; reverse yellowish. Hyphae septate, hyaline, smooth-walled, 1.7–2.1 μm wide. Conidiophores hyaline, smooth-walled, with single phialide or whorls of 2–5 phialides or verticillium-like directly from hyphae. Phialides cylindrical, somewhat inflated base, 5.0–10.6 × 1.7–1.9 μm, tapering to a thin neck. Conidia hyaline, smooth-walled, ellipsoidal, 1.4–2.9 × 0.9–1.1 μm, forming divergent and basipetal chains. Sexual state not observed.

Host:— Pupa ( Lepidoptera ).

Additional strain examined:— CHINA. Guizhou: Qiannan Buyi and Miao Autonomous Prefecture, Duyun City, Doupeng Mountain ( 26°20′08″N, 107°17′34″E), on a pupa ( Lepidoptera ), 30 July 2022, Qian Zeng, living culture, DY10522.

Figures

FIGURE 2. Samsoniella doupengshanensis. A. Infected pupa. B–C. Culture on PDA, showing the top (B) and underside (C). D–J. Phialides and conidia formed on PDA (I, stained with cotton blue). Scale bars: B, C = 10 mm, D–J = 10 μm.