Massee. — On the Fungus Flora of Neru Zealand. 325 



fiud the account. Distinguished by thin substance and 

 entirely white colour. 



Pleiirotus guilfoylei somewhat resembles the present spe- 

 cies, but differs in having the pileus tomentose behind and the 

 margin persistently incurved. 



76. Pleicrotus porrigens, Pers., Obs. Myc, i., p. 54; Sacc, 

 Syll. v., no. 1477. 



Entirely white ; at first orbicular and resupinate, then 

 ascending or horizontal and becoming more or less tongue- 

 shaped, 5-8 cm. long, 3 cm. broad, sometimes fan-shaped or 

 almost circular, sessile, glabrous, often more or less downy 

 near the base ; flesh thin, tough ; gills radiating, very narrow, 

 rather crowded ; spores broadly elliptical, 6-8 x 4-5 fx. 



On stumps. Dannevirke, New Zealand. Europe. 



"Usually imbricated. Distinguished by the thin substance, 

 narrow crowded gills, and white colour of every part. 



77. Pleurotus flahellatus, Berk, and Broome, Journ. Linn. Soc. 

 (Bot.), vol. xi., p. 928 ; Austr. Fung., p. 34 ; Sacc, Syll. v., 

 no. 1449. 



Pileus horizontal, often imbricated, thin and soft, white 

 or more or less tinged reddish-brown, tomentose or downy, 

 becoming glabrous, gradually narrowed behind into a some- 

 what slender stem-like base, and truly fan-shaped, margin 

 sometimes irregularly lobed, 2-5 cm. long, 2-3 cm. broad; 

 gills radiating from the narrowed base, decurrent, narrow, 

 somewhat crowded, margin entire ; spores narrowly elliptical 

 and obliquely apiculate, 5-6 x 3*5 /u,; cystidia fusiform, apex 

 rather acute, and rough with particles of oxalate of lime 



On dead wood. Dannevirke, New Zealand. Ceylon, 

 Australia, South Africa, Venezuela. 



Distinguished from PleuroUis colensoi and P. guilfoylei by 

 the truly fan-shaped pileus, smaller spores, and the presence 

 of large cystidia in the hymenium, which have the projecting 

 portion covered with particles of oxalate of lime, as in Penio- 

 pJiora. 



ttt Pileus white, cuticle gelatinous. 



78. Pleurotus nova-zealandia, Berk., Flora N.Z., ii., p. 174; 

 Hdbk. N.Z. Flora, p. 602 (as Agaricus (Pleurotus) novce- 

 zealandice) ; Sacc, Syll. v., no. 1456. 



Hygrophanous, subgelatinous, white, stem obsolete but 

 attached by a narrowed base which forms a little round 

 disc, smooth in front, minutely scabrous behind, fan-shaped, 

 reniform, 6-8 cm. broad, 3-4 cm. long; gills broad, distant, 

 thin, interstices veiny. 



On dead wood. Northern Island, New Zealand. 



