ISO FUNGUS-FLORA. 



Odontia harla-jocis, Fr., Hyin. Eur., p. G27; Stev., B. F,, 

 p. 257. 



On decaj-iug wood. Spreading 12 in. and more. Distin- 

 guished from BaduluM querchmia by the finiLriated orange 

 tips of the spines. 



On the under side of wood \yn\^ on the ground. Some- 

 times a foot or more broad ; white when young, then yel- 

 lowish rufous ; membranaceous, composed of the finest down, 

 margin byssoid, pure white. Spines simple, about 2 lines 

 long, their tips somewhat penicillate. (Fries.) 



KNIEFFIA. Fr. (figs. 16, 17, p. 149.) 



Hymenium covering the whole exposed surface, destitute 

 of granules and warts, but bearing scattered or fasciculate 

 bristles. Basidium bearing a single sterigma. Broadly effused, 

 thin, and encrusting, or m the most perfect form growing 

 out of cracks in the bark, and assuming various shapes. 



Knifffia, Fr., Epicr., p. 529 ; Stev., Fung., p. 257. 



Tiio minute bristles do not bear the hymenium, as is the 

 case with the spines in Ui/dninii, but are barren outgrowths 

 from the flat liymenial surface, and in this respect only 

 diilering from Corticiuru. In Penlojihora the minute spines 

 covering the hymenium ditier in consisting of single large 

 cells — cystidia. 



Knieffia setigera. Fr. (figs. 16, 17, p. 149.) 

 White, i)ale butf Avlien dry, broadly effused, sometimes 

 ratlier thick and flesh}', at others a mere film, bristles very 

 minute, hyaline, scattered. 



Knir[)ia svthji'ra, Fr., Epicr., p. 529 ; Stev., Fung., ]>. 25(). 

 Form very variable. Fries says that large specimens 

 reach the size of an apple, but commonly thin and eifnsed. 

 J British specimens, so far as I am aware, are always eifused 

 and entirely resupinate, forming a thin white layer that 

 follows the irregularities of the matrix; superficially re- 

 sembling Grandiuia (jrannhmi, but distinguished under a 

 pocket-lens by the minute, bristle-like .spines. 



Kniefiia subgelatinosa. B. k Br. 



Thin, Bubgelatinous, yellowish, then pale bulf; spines very 

 minute, scattered ; spores broadly elliptical, apiculate, 

 4 X 2 • 5 /x. 



