454 FUNGUS-FLORA. 



Sporocybe Phillipsii, Sacc., Syll., iv. n. 2894. 



Periconia Phillipsii, Berk. & Leight., Ann. Nat. Hist., 

 n. 1453 ; Grev., vol. iv. t. 42. 



On naked ground, along with a minute species of 

 Thelocarpon. Stem about equal in height to the diameter of 

 the head, thick for the size of the plant. Looks at first sight 

 like a little Sphinctrina, so minute that it is quite invisible 

 to the naked eye. (B. & L.). 



GEAPHIUM. Corda. (fig. 15, p. 442.) 



Stroma cylindrical, clavate, or capitate, brownish, rather 

 rigid ; the upper hyphae paler, lax, and bearing the conidia ; 

 conidia elliptical or oblong, hyaline, often involved in mucus 

 at first. 



Graphium, Corda, Icon. Fung., i. p. 18; Sacc., Syll., iv. 

 p. 609. 



Distinguished from Isaria and Stilbum by the dingy 

 brown colour of the erect stroma. 



I. EU-GKAPHIUM. Head whitish or glaucose. 



Graphium stilboideum. Corda. 



Gregarious, scarcely 2 mm. high, stem long, filiform, 

 consisting of parallel sooty hyphae, expanded at the apex 

 into a pale subrotund discoid head ; conidia elliptic-oblong, 

 6x3, hyaline. 



Graphium stilboideum, Corda, Icon. Fung., ii. p. 69 ; Sacc., 

 Syll., iv. n. 2896. 



On branches, cabbage-stems, &c. 



Graphium rigidum. Sacc. 



Stems gregarious, robust, rigid, blackish-olive, fragile, 

 becoming subulate from a thickened base; head at first 

 watery-white, then grey, compact, easily breaking off. 



GrapJiium rigidum, Sacc., Syll., iv. n. 2897. 



Stilbum rigidum, Persoon, in Uster AnnaL, i. p. 32, f. 2 ; 

 and Pers., Syn., p. 680. 



On rotten trunks. 



