394 



HYDNACEuE 



Kneiffia 



1777a. 0. Pruni Lasch. (from its host plant, sloe, Prunus spinosa) a. 

 Crustaceo-adnate, effused, thin, white, becoming pallid; marg. 

 byssoid, warts minute, rounded. 



LXXVIII. KNEIFFIA Fr. 



(After Friederich Gotthard Kneiff, mycologist of Baden.) 



Resupinate, effused, thin. Hymenium strigose and roughened 

 with rigid, scattered or fasciculate bristles which are barren out- 

 growths from the fertile hymenial surface. Laxly fleshy, soft, collapsing 

 and becoming flocculose when dry. Basidia monosporous. (Fig. 93.) 



A 



Fig. 93. A, Kneijffia setigera Fr., natural size ; B, section, enlarged. 



The most perfect condition, where the growth is hemispherical 

 and three inches in diameter, has not been observed in Britain. 



Must not be confounded with Peniophora, where the basidia are 

 4-spored and the cystidia, which are bristle-like, are covered with 

 minute particles of oxalate of lime. Species 1778, 1779 



1778. K. setigera Fr. (from the minute hairs or bristles borne on the 



hymenium ; seta, a bristle, gero, to carry) a b c. 

 Sub. white, becoming ochreous-ivory, sometimes pale grey ; 

 marg. sometimes pulverulent. Br. minute, single or several 

 connate, more or less scattered, hyaline; the basidia occur 

 between the barren bristles. 



Dead wood, blackberry, pine, juniper, magnolia, grass. Jan. -Dec. 4^ in. 

 Sometimes the spuriously tuberculose hymenium resembles that of 1770 or 

 1839. 



