Phylum:Ascomycota >> Class: Ascomycetes >>  Order: Helotiales 
 BCRC Number NO BCRC Number!  
 Scientific Name: Cudonia convoluta

Cudonia convoluta Lloyd, Mycological Writings p. 24 1916; Mains, Amer. J. Bot. 27: 323. 1940.

 Description: Fruit bodies ochraceous, pileus soft, up to 1.4-2 cm in diam, slight convex, margin irregular and recurved until its edges meet the stipe, inwardly and outwardly smooth, upward slight flute. Hymenium convex and much convoluted, the outermost layer gelatinous, brownish black in color. Subhymenial layer soft, spongy and very wide. Stipe striate, fleshy, hollow, 17-20 mm high, one chamber, enlarged at the base and tapering upward. Asci clavate, much attenuated below, 86-116 μm wide above, pores not changed to blue by iodine, eight ascospores. Ascospores parallel in the ascus, acicular, 44-56 μm in length, becoming multiseptate and budding in the ascus. Paraphyses slender, slight and circinate at the apices.

Specimen No. 101, at Li-Chia Shan in Taitung, altitude about 1,500 m (September, 1981, S. Huang).

 Habitat: Under fagaceous woods in the forest stand.



Ainsworth et al., 1973; Chen, KY and Chien, CT., 1983; Mains, EB.,1940.


K. Y. Chen

 Note: Our specimens don't resemble C. japonica Yasuda in having the thick and furrowed pileus. We emphasize that the ascospores are regularly arranged or parallel, become multiseptate and bua in the asci. The paraphyses swell at their tips and are less branched compared to Yasuda's description (Yasuda, 1915). Navashin solution was suitable for maintaining the specimens.