Exosporium ampullaceum Petch M. B. Ellis, Mycol. Pap., 82:32-33. 1961..
≡ Helminthosporium ampullaceum Petch, Ann. R. bot.Gdns., Peradeniya, 7:319. 1922..
Description：
Colonies effuse, hairy, dark brown to black on natural substance. Mycelium almostly immersed, composed of branched, septate, smooth, brownish grey to yellowish brown, 2.0-5.7 μm wide hyphae. Stromata immersed, pseudoparenchymatous, brown to dark brown. Conidiophores macronematous, mononematous, single or in groups, simple, straight or curved, septate, thick-walled, yellowish brown to dark brown, thiner and paler towards the apex, rugose, 276.5-363.4 × 13.0-16.0 μm, often swollen at the base, up to 18.6 μm wide, with thick, black, up to 4-8 μm wide scars scattered. Conidiogenous cells polytretic, cicatrized. Conidia obclavate, erect or curved, rostrate, 6-9-septate, smooth to rugose, dark brown, paler towards the apex, often with a subhyaline basal cell and a black, truncate scar at the base, 77.4-114.0 × 17.0-26.0 μm.
Specimens：
Taiwan, Wulai, Taipei Pref., on a herbaceous rotten stem, 22 May 1993, TNTU 1099. leg.J.L. Chen.
Habitat：
on a herbaceous rotten stem
Distribution：
Taiwan, Ghana, Sierra Leone, Srilanka, Cuba, Papua New Guinea, Mexico.
References：
Ellis, 1961.
Provided：
J. L. Chen and S. S. Tzean
Note：
This species is characterized by polytretic, cicatrized conidiogenous cells and huge, obclavate, septate, rugose, brown conidia with rostrate towards the apex and truncate at the base.
Phylum：Anamorphic fungi >> Class： Anamorphic fungi >> Order： Anamorphic fungi 
BCRC Number：