Leucaenicola
Leucaenicola Jayasiri, E.B.G. Jones & K.D. Hyde, in Jayasiri et al., Mycosphere 10(1): 37 (2019).
Index Fungorum number: IF 555538; Facesoffungi number: FoF 05239, 2 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic on Leucaena sp. pod. Sexual morph: Unknown. Asexual morph: Coelomycetous. Conidiomata pycnidial, solitary, immersed in substrate to superficial, visible as black dots covered by epidermal tissues, uniloculate, globose to subglobose, glabrous, ostiolate centrally, with minute papilla. Conidiomata wall thin-walled equal thickness, composed of several layers of hyaline to dark brown, pseudoparenchymatous cells, outer layers comprising 2–3 cell layers of thick-walled, dark brown to black cells, organized in a textura angularis to textura prismatica, with inner layers comprising 1–2 layers of thin-walled, hyaline, and organized in textura angularis. Conidiophores arising from basal cavity of conidiomata mostly reduced to conidiogenous cells. Conidiogenous cells, enteroblastic, phialidic, hyaline to brown, globose to flask-shaped, smooth-walled. Conidia, solitary, one-celled, initially hyaline, becoming brown at maturity, oblong to ellipsoidal, with rounded or obtuse ends, aseptate, smooth-walled (adapted from Jayasiri et al. 2019).
Type species: Leucaenicola aseptata Jayasiri, E.B.G. Jones & K.D. Hyde
Notes: Leucaenicola is characterised by pycnidial, solitary, immersed to superficial conidiomata, conidiophores arising from basal cavity of conidiomata, enteroblastic, phialidic, hyaline to brown conidiogenous cells, and one-celled, initially hyaline, becoming brown conidia. Leucaenicola is closely related to Bambusicola but differs in that the latter has acerose immersed to half-immersed conidiomata, holoblastic conidiogenous cells, pale brown to dark brown, 1–3-septate, cylindrical conidia. Leucaenicola is a distinct and well-defined genus in Bambusicolaceae. Molecular markers available for Leucaenicola are ITS, LSU, SSU, RPB2 and TEF-1.
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