HYPOCHNELLA. JAAPIA 659 



similar. Hymenium concolorous, very loose, pulverulent. Spores 

 hyaline, rough with short conical warts, subglobose, broadly elliptical 

 or oval and flattened on one side, attenuated at the base, 2-3-5 /u, 

 in diam., or 2-3-5 x 2-2-5/z, usually 1-guttulate; basidia clavate, 

 8-16 x 4-6 JM, with 2-4 thin, pointed sterigmata 1-5-3 /x long. Hyphae 

 hyaline, 1-3/x, in diam., thin walled, septate-nodulose, rarely distinct 

 (no clamp connections observed). Pine stick. Sept. Kare. 



Hypochnella Schroet. 

 (Hypochnella, diminutive of Hypochnus.) 



Same characters as Hypochnus but differing in the smooth, ellip- 

 tical, violet spores. Growing on wood. 



2239. H. violacea (Awd.) Schroet. Violacea, violet. 

 R. 210 cm., rich lilac colour, becoming darker and duller when dry, 



irregularly effused. Hymenium concolorous, smooth. Flesh bluish, 

 very thin, floccose, loose. Spores deep violet, elliptical, with a lateral 

 basal apiculus, 7-9 x 3-4/A; basidia hyaline, or faintly coloured, 

 cylindric-clavate, 20-25 x 8-9 /z; paraphyses obtuse, 10-12 x 6-7 p, 

 often with a few crystals on the external walls. Subhymenial hyphae 

 very faintly coloured, often slightly incrusted with small rounded 

 crystals; basal hyphae pale lilac, 6-9 ju, in diam. Underside of fallen 

 branches. Sept. Oct. Uncommon, (v.v.) 



Jaapia Bres. 

 (Otto Jaap.) 



Resupinate, effused, immarginate, flocculose-pulverulent, with 

 the habit of some Corticia or of a pale Hypochnus. Spores straw 

 coloured, subelliptical, hyaline-appendiculate. 



2240. J. argillacea Bres. Trans. Brit. Myc. Soc. vi, text-figs, p. 320. 



Argillacea, clay coloured. 



R. 1 cm., clay coloured, irregularly effused, flocculose, sometimes 

 with scattered granules. Hymenium concolorous, loose, then more 

 continuous. Flesh concolorous, very thin, floccose. Spores straw 

 coloured, fusiform, slightly curved, 22-25 x 7-8/z, consisting of a 

 central oblong-elliptical portion, 14-18 x 7-8/A (mostly 15 x 7/x), 

 containing faintly coloured, granular protoplasm, divided off by a wall 

 from a clear conical portion at either end. Basidia clavate, up to 60 JJL 

 long by 8-10/u, wide, with 2-4 curved sterigmata, 8ju, long. Cystidia 

 hyaline, cylindrical, obtuse, 100-160 x 7-8//,, occasionally with a 

 single septum. Basal hyphae flexuous, frequently septate, with clamp 

 connections, 4-6/x in diam. Fallen sticks. Oct. Rare, (v.v.) 



422 



