314 Transactions. — Botany. 



pileus not being umbilicate and not in the least striate, and 

 the stout stem. 



17. Pluteus, Fries. 



Pileus regular ; gills quite free from the stem ; stem central, 

 ring and volva entirely absent ; spores pale salmon-colour. 



Pluteus, Fries, Epicr., p. 140 (as a subgenus of Agaricus). 

 Distinguished among the BhodosporcB by the free gills and 

 absence of volva and ring. The species gi'ow on wood. 



53. Pluteus cervinus, Schaeff., Icon., tab. 10 (1800) ; Cke., 

 Austr. Fung., p. 38; Sacc, Syll. v., no. 247. 

 Generally solitary. Pileus 4-10 cm. across, flesh white, 

 thick at the disc, becoming very thin towards the margin, 

 campanulate, then expanded, even, at first glabrous, then be- 

 coming broken up into fibrillose squamules that soon dis- 

 appear, smoky, with a yellow, brown, or fawn-coloured tinge ; 

 gills free, crowded, 4-8 mm. broad, white, then salmon-colour; 

 spores broadly elliptical, smooth, 7-8 x 5-6 /u, ; cystidia 

 ventricose, often spinose at the apex ; stem 5-12 cm. long, 

 1 cm. and more thick, equal, pale and sprinkled with blackish 

 fibrils, solid. 



On trunks and stumps. New Zealand. Victoria, Tas- 

 mania, Ceylon, South Africa, Europe. 



Leucospor^. 



Analysis op the Genera. 



A. Margin op gills split ; split portions curved ootwards. 



18. SCHIZOPHYLLUM. 



B. Margix op gills not split ; entire fungus soft, soon decaying 



AFTER maturity. 



* Qills decurrent ; pileus regular. 



19. Cantharellus. Gills narrow, edge thickened. 



20. Omphalia. Ed^e of gill^ sharp ; stem cartilaginous and polished 

 outside. 



21. Clitocybe. Edge of gills sharp ; stem fibrous externally. 



22. Hygrophorus. Edge of gills sharp ; plants brittle, watery. 

 (Some species have the gills adnate, or almost free.) 



** Gills decurrent; stem excentric or lateral. 



23. Pleurotus. 



*** Gills adnate or adnexed. 

 f Ring on stem absent. 



24. Laccaria. Gills becoming mealy with the globose warted spores. 



25. GoLLYBiA. Gills not mealy ; margin of pileus incurved when 

 young. 



26. Mycena. Gills not mealy ; margin of pileus straight when 

 young. 



27. Tricholoma. Gills not mealy, sinuate. 



tt Ring present on stem. 



28. Armillaria. 



