474 FUNGUS-FLORA. 



Psilonia stipitata, Libert, exs. cent., iii. n. 287. 



On rotten branches and stems, and on various sclerotia. 



Volutella roseola. Cke. 



Sporodochium subglobose, rose-colour, seated on a distinct 

 thin stem -like base, cilia marginal, elongated, flexuous, 

 attenuated upwards ; conidia cylindrical, 3 X 1 /*. 



Volutella roseola, Cke., in Grevillea ; Sacc., Syll., iv. n. 3230. 



On branches. Distinguished from Volutella ciliata by the 

 much smaller conidia. 



Volutella hyacinthorum. Berk. 



Minute ; pure white, shortly but distinctly stipitate ; sporo- 

 dochium surrounded by a row of long, pointed, colourless 

 hairs ; conidia colourless, 4 x 1 ' 5 p.. 



Volutella hyacinthorum, Berk., Outl., p. 340 ; Sacc., Syll., iv. 

 n. 3231. 



Psilonia hyacinthorum, Berk., Engl. Fl., v. p. 353. 



On dead bulbs, leaves, herbaceous stems, &c. 



Volutella nivea. Sacc. 



Erumpent; sporodochia gregarious or confluent, snow- 

 white, 1-2 mm. diameter, sessile, hemispherical, hairs 

 hyaline, numerous, wavy, with spreading branches ; conidia 

 minute, elongate-cylindrical, curved, hyaline. 



Volutella nivea, Sacc., Syll., iv. n. 3236 (not of Fries), which 

 is, as pointed out by Cooke, of insect origin, being caused 

 by Adelges fagi, as proved by an authentic specimen from 

 Fries. 



On bark of beech, emerging through the cracks. 



B. Base of Sporodochium broad and flattened. 

 * Growing on Dicotyledons. 



Volutella setosa. Berk. 



Sporodochium white, sessile on a broad base, margined 

 and its substance interspersed with elongated, continuous, 

 hair-like hyphae; conidia globose, very minute, about 1 ft 

 diameter. 



