Pestalotiopsis rhodomyrtus Y. Song, K. Geng, K.D. Hyde & Yong Wang bis, sp. nov. (Fig. 3) MycoBank MB

804968

Differs from Pestalotiopsis rosea and P. adusta by bigger conidia and its apical appendages, which are shorter than those of P. trachicarpicola and P. rosea .

Type: — CHINA. Guangxi Province: Liangfeng River National Forest Park, isolated from leaves of Rhodomyrtus tomentosa, 2011, J.G. Wei (HGUP4230, holotype!) .

Conidiophores indistinct. Conidiogenous cells discrete, hyaline, simple, filiform. Conidia 19.7–26.3 × 4.9–6.7 µm (n=30, x =23.00 × 5.76 µm), fusoid, straight to slightly curved, 4-septate; basal cell conic to obconic, hyaline or pale brown, smooth, thin-walled, 3.6–6.4 µm long (n=30, x = 4.79 µm); three median cells 12.9– 16.8 µm long (n=30, x = 15.04 µm), brown, septa and periclinal walls darker than the rest of the cell, concolorous, verruculous; second cell from base 4.3–5.8 µm long (n=30, x = 5.12 µm); third cell from base 3.5–5.7 µm long (n=30, x = 4.73 µm); fourth cell from base 4.3–5.6 µm long (n=30, x = 4.88 µm); apical cell hyaline, obconic to subcylindrical, 2.7–4.1 µm long (n=30, x = 3.56 µm); with 2–3 tubular appendages, arising from the apex of the apical cell, 7.5–14.9 µm long (n=30, x = 10.54 µm), unequal; one basal appendage present, 2.8–4.9 µm long (n=30, x = 3.65 µm), filiform.

Colonies on PDA reaching 7 cm diam. after 8 days at 25°C, with edge crenate, whitish, aerial mycelia on surface, fruiting bodies black, gregarious; reverse of colony pale orange.

Etymology: —In reference to the host, Rhodomyrtus tomentosa, from which this fungus was first isolated.

Habitat/Distribution: —Known to inhabit Rhodomyrtus tomentosa, Guangxi Province, China.