Kirschsteiniotheliales » Kirschsteiniotheliaceae » Kirschsteiniothelia

Kirschsteiniothelia fluminicola

Kirschsteiniothelia fluminicola Z.L. Luo, K.D. Hyde & H.Y. Su

Index Fungorum number: IF555283; Facesoffungi number: FoF04692

Holotype: MFLU 17–1427

Etymology: Referring to the fungus living in a stream.


Saprobic on submerged decaying wood. Sexual morph: Undetermined. Asexual morph:

Colonies effuse on natural substrate, hairy, dark brown. Mycelium immersed, dark brown to black, composed of unbranched, septate hyphae. Conidiophores erect, straight or flexuous, septate, smooth, cylindrical, dark brown to black, unbranched, percurrent, 209–286 μm ( = 247.5 μm, SD = 38.5, n = 20) long, 7–9 μm ( = 8 μm, SD = 1, n = 20) wide. Conidiogenous cells monoblastic, terminal, indeterminate, percurrently proliferating, cylindrical, dark brown. Conidia solitary to short-catenate, obclavate, rostrate, truncate at base, slender and rounded at apex, aseptate when immature, multi-septate at maturity, subhyaline to dark brown, with conspicuous, spherical guttules in almost all cells, 47.5–86.5 μm (= 67 μm, SD = 19.5, n = 20) long, 8–10 μm (= 9 μm, SD = 1, n = 20) wide. (Descriptions based on Bao et al. 2018)


Material examined: CHINA, Yunnan Province, saprobic on decaying wood submerged in

Dulong River, May 2015, Z.L. Luo, S315, (MFLU 17–1427, holotype), ex-type culture,

MFLUCC 16–1263.


Notes: Kirschsteiniothelia fluminicola is introduced here based on distinct morphology and molecular data. Kirschsteiniothelia fluminicola is grouped in the family Kirschsteiniotheliaceae and it is sister to K. phoenicis (MFLUCC18–0216) (Bao et al. 2018). K. fluminicola can be distinguished from other species in having short-catenate, slender conidia rounded at apex and multi-septate at maturity. (Notes taken from Bao et al. 2018)



Bao DF, Luo ZL, Liu JK, et al (2018) Lignicolous freshwater fungi in China III: Three new species and a new record of Kirschsteiniothelia from northwestern Yunnan Province. Mycosphere 9:755–768.


Fig. 1.  Kirschsteiniothelia fluminicola (MFLU 17–1427, holotype). a. Colonies on wood. b–d. Conidiophore with conidia. e, f. Conidiogenous cells with conidia. g–j. Conidia. k. Germinating conidium. l, m. Culture on PDA from surface and reverse. Scale bars: b = 40 μm, c, d = 50 μm, e = 30 μm, f–k = 20 μm. (Bao et al. 2018)


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