Tubeufiales » Tubeufiaceae » Aquaphila

Aquaphila albicans

Aquaphila albicans Goh, K.D. Hyde & W.H. Ho

Index Fungorum number: IF 443558

 

Saprobic on decaying wood submerged in freshwater. Sexual morph: Undetermined. Asexual morph: Colonies on natural substrate effuse, translucent, chalky white. Mycelium partly immersed in substrate, consisting of septate, branched, hyaline, smooth, thin-walled hyphae. Conidiophores up to 20 μm long, 3–6 μm wide, arising singly from procumbent hyphae, semi-macronematous, mononematous, flexuous, simple or branched, septate, hyaline, thin-walled, smooth. Conidiogenous cells mono-or polyblastic, sympodial with cylindrical denticles with truncate ends, hyaline, with numerous integrated tiny pegs. Conidia 65–75 × 8–10.5 μm ( = 68 × 9.5 μm, n = 15), acrogenous, solitary, mostly fusoid to sickle-shaped, sometimes sigmoid, slightly curved and acute at both ends, basal cell obconical, 10–13-euseptate, constricted at the septa, hyaline to pale yellowish, densely guttulate, smooth-walled. (Notes from Dong et al. 2020)

 

Culture characteristics: On PDA, colony irregular, reaching 5 mm in 25 days at 25 °C, brown from above, dark brown from below, surface dry, rough, with sparse mycelium, mostly immersed in culture, with an irregular edge.

 

Material examined: THAILAND, Prachuap Khiri Khan Province, on submerged wood in a stream, 30 July 2015, K.D. Hyde, 147A (MFLU 15-2713), living culture MFLUCC 15-0995; Nakhon Si Thammarat Province, on submerged wood in a stream, 10 May 2018, W. Dong, hat6109 (MFLU 18-1720), living culture KUMCC 19-0078.

 

Notes: Two new collections MFLUCC 15-0995 and KUMCC 19-0078 were collected from submerged wood in Thailand and are morphologically and phylogenetically identical to Aquaphila albicans (Goh et al. 1998; Hyde et al. 2016). Phylogenetic analysis supports our two collections to be A. albicans. (Notes from Dong et al. 2020)