Leptoxyphium fumago
Leptoxyphium fumago (Woron.) R.C. Srivast., Arch. Protistenk. 125(1-4): 333 (1982)
= Leptoxyphium cacuminum Chomnunti & K.D. Hyde, in Chomnunti et al., Fungal Diversity 51(1): 114 (2011)
= Leptoxyphium glochidion H. Yang & K.D. Hyde, in Yang, Ariyawansa, Wu & Hyde, Phytotaxa 178(1): 177 (2014)
Saprobic on sugary exudates from insects growing on the surface of living leaves. Thallus composed of brown to pale brown, sub-cylindrical, irregularly branched, septate, network-like hyphae. Sexual morph: undetermined. Asexual morph: Conidiomata 120–170 × 20–40 μm, grey-brown, synnematous, gregarious, superficial, arising from aggregated hyphae, differentiated into a basal stalk and a head; stalk 70–130 µm long, 10–40 µm wide, dark brown, base bulbous, comprising parallel hyphae, straight to slightly flexuous, sometimes with helical twisting, branched; head 30–50 μm high, 25–35 μm wide, funnel-shaped, cupulate (Fig. 209 e. j), bearing a conidial hymenium. Conidiomatal wall composed of thick-walled, dark brown to pale brown cells of textura porrecta. Conidiophores arising from the inner layers of pycnidial wall. Conidiogenous cells not observed. Conidia 4–9 × 2.5–4 μm (
= 3 × 4 μm, n=30), hyaline, ellipsoid, rounded at both ends, sometimes narrow at the middle part, straight or slightly curved, unicellular, smooth-walled, guttulate.
Material examined: Malaysia, Selangor, Shah Alam, Universiti Teknologi MARA campus, on living leaves of Citrus sp. (Rutaceae), 31 January 2014, Qing Tian, UiTM05 (MFLU 19-2892), living culture MFLUCC 14-0189.
References:
Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.
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