350 FUNGUS-FLOKA. 



hyphae erect, short, septate, springing from a pale stroma; 

 conidia iu chains, cylindrical, tips subacute, 1-septate, 

 16-25 X 3-7 p,. 



Septocylindrium concenlricum, Sacc., Syll., iv. n. 1097. 



Septonema concentricum, B. & Br., in Rab. Fung. Eur., Exs., 

 n. 777. 



On chips of larch and. pine. 



Septocylindrium viride. Sacc. 



Tufts very thin and cloud-like, more or less effused, 

 greenish; stroma-like base very thin, yellowish; chains 

 straight, rigid, with short branchlets; conidia subfusiform, 

 tips obtuse, 3-septate, pellucid with a green tinge, 

 18-24 x 6-7 /*. 



Septocylindrium viride, Sacc., Syll., iv. n. 1107. 



Septonema viride, Corda, Ic. Fung., ii. p. 9, f. 44. 



On rotten wood. 



Septocylindrium Magnusianum. Sacc. 



Tufts suberumpent, dirty white, on reddish, slightly cor- 

 rugated portions of both surfaces of the leaves, very minutely 

 velvety; chains of conidia springing from a slight.ly inflated 

 basal hypha ; conidia cylindrical, ends obtuse, 2025 x 4 /x, 

 colourless, 1-septate, not constricted at the septum. 



Septocylindrium Magnusianum, Sacc., Mich., i. p. 130; Sacc., 

 Syll., iv. n. 1088. 



On fading leaves Trientalis Europaea. 



Sect. IV. STAUROSPOREAE. Sacc. 

 PRISMARIA. Preuss. (fig. 2, p. 313.) 



Fertile hyphae erect, simple, not septate, conidia radiating 

 from the tip and forming an incomplete head. Conidia 

 elongated, colourless, with or without septa. 



Prismaria, Preuss, F. Hoyersw., n. 86; Sacc., Syll., iv. 

 p. 229. 



Distinguished by the unbranched, aseptate conidiophores 

 producing a few elongated, radiating conidia at the tip that 

 form a loose, non- compacted head. 



