Classicula sinensis Y. Huang & Z.F. Yu

Qiao, Min, Li, Wenjun, Huang, Ying, Xu, Jianping, Zhang, Li & Yu, Zefen, 2018, Classiculasinensis, a new species of basidiomycetous aquatic hyphomycetes from southwest China, MycoKeys 40, pp. 1-12 : 1

Classicula sinensis Y. Huang & Z.F. Yu sp. nov. Figure 2

Etymology.

Sinensis refers to the country in which this species was found.

Diagnosis.

Classicula sinensis differs from C. fluitans by having fusiform conidiogenous cells growing from the hyphae directly.

Type.

CHINA. From leaves of an unidentified dicotyledonous plant submerged in a stream, Chongqing Municipality, Mozigou, 29°25'38"N, 107°24'19"E, ca. 750 m elev. Oct 2014, ZeFen Yu, YMF 1.04613-holotype[live culture], YMFT1.04613 [dried specimen], CGMCC–3.18938– ex-type culture. Other strain: YMF 1.04389, CGMCC– 3.18937, Chongqing Municipality, Mozigou, 29°28'N, 107°25'E, ca. 750 m elev.

Description.

Colonies on CMA reach about 10 mm diameter after incubating for 7 days at 27 °C. Colony effuse, mycelium partly superficial, partly immersed in substratum, composed of hyaline, branched, thin-walled, septate, smooth, binucleated hyphae, 1.5-4.8 µm wide, often 1.8-2.7 µm wide. Clamp connection and haustorial branches on hyphae present. Haustorial branches with basal clamps, tapering distally or obclavate, 9-14.2 (-16.5) µm long, 1.2-2.6 µm wide, one or two terminal filaments of 3-8.5 × 1.3 µm located on the top of it. Conidiophores absent. Conidiogenous cells fusiform, monoblastic, 7.5 –11×2– 2.8 µm, attaching directly on the hyphae, solitary or in aggregates of two. Conidia solitary, acrogenous, navicular or obclavate, attenuating upwards, 25-38 (-42) µm long, 3.8-6.2 µm wide, 1.3-3.4 µm wide at the truncate base, (0-) 2-5 (-7) septa appear in those conidia without cytoplasm, with 1-5 (mainly 3-4) lateral appendages, attaching to the upper part of conidia, opposite or verticillate, filiform, smooth, divergent, pendulous or straight (-7) 13-21 (-25) µm long, 0.8-1.2 µm wide, 0 –2(– 3) septate. Occasionally, 1(-2) appendages also arise from apex of the main axis. Sometimes clamp connections appear at the top of conidia.