310 FUNGUS-FLORA. 



branches; conidia obovate or subglobose, 4-6 X 3-3 '5 //,, 

 deep yellow. 



Sporotrichum flavissimum, Link, Obs., ii. p. 34 ; Sacc., Syll., 

 n. 510. 



? Sporotrichum sulphureum, Grev., Scot. Cr. Fl., t. 108, f. 2. 



On decaying leaves, stems, wood, tubers, &c., also on dung. 



Sporotrichum sulphureum. Grev. 



Tufts small, orbicular, clear yellow, sometimes becoming- 

 confluent; hyphae very slender, scantily septate, branched, 

 loosely interwoven ; conidia minute, globose, yellow. 



Sporotrichum sulphureum, Grev., Scot. Crypt. Fl., t. 108, f. 2; 

 Sacc., Syll., iv. n. 511. 



On bark, dung, corks and other substances, in cellars, &c. 



Sporotrichum merdarium. Ehrb. 



Tufts minute, deep yellow, somewhat powdery ; branches 

 of hyphae often trifid, slightly rough ; conidia globose, muri- 

 culate, yellow, 9-10 p. diameter. 



Sporotrichum merdarium, Ehrenb., Sylv. Berol., p. 10 ; Sacc., 

 Syll., iv. n. 524. 



On dung. 



Distinguished from the other yellow species by its globular 

 conidia, which leave a wavy or knobby outline in optical 

 section, arising from the bluntly convex elevations by which 

 the surface is ornamented. Conidia 5-6 p. diameter. On 

 dog's dung. (Grove.) 



Sporotrichum aurantiacum. Grev. 



Forming minute orange-red tufts ; hyphae very slender, 

 very much interwoven ; conidia globose, very minute. 



Sporotrichum aurantiacum, Grev. in Wern. Trans., iv. t. 5, 

 f. 4 ; Sacc., Syll., iv. n. 523. 



On dung, &c. 



Sporotrichum geochroum. Desm. (fig. 31, p. 313.) 

 Tufts small, velvety, ochraceous with rust tinge ; fertile 



hyphae erect, minutely rough, very sparingly septate, 



branchlets scanty ; conidia globose, clear brown, 3-4 p. 



diameter. 



Sporotrichum geochroum, Desm., in Fries, Syst. Myc., iii. p. 



146 ; Sacc., Syll., iv. n. 532. 

 On rotten wood, &c. 



