474 FUNGUS-FLOKA. 



Psilonia stipltata^ Libert, exs. cent., iii. n. 287. 



On rotten branches and stems, and on various sclerotia. 



Volutella roseola. Cke. 



Sporodocliium snbglobose, rose-colour, seated on a distinct 

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

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



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



On brancbes. 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 /x. 



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

 n. 3231. 



Psilonia liyacinihorum, Berk., Engl. FL, v. p. 353. 



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



Volutella nivea. Sacc. 



Ermnjoent; sporodochia gregarious or confluent, snow- 

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

 hyaline, numerous, wavy, with spreading branches ; conidia 

 minute, elongato-cjdindrical, curverl, hyaline. 



Volutella nivea, Sacc, Syll., iv. n. 3236 fnot of Fries), which 

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

 by Adelges fagi^ as proved by an authentic specimen from 

 Pries. 



On bark of beech, emerging through the cracks. 



B. Base of sjporodocliium broad and flattened. 



* Growing on Dicotyledons. 



Volutella setosa. Berk. 

 Sporodocliium white, sessile on a broad base, margined 

 and its substance interspersed with elongated, continuous, 

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

 diameter. 



