350 FUNGUS-FLOEA. 



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

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

 16-25 X 3-7 /x. 



Sej^itocijUndrium conceufricum, Sacc, Syll., iv. n. 1007. 



Septonema concentricum^ B. & Br., in Eab. Fung. Eur., Exs., 

 n. 777. 



On cliips of larch and j)ine. 



Septocylindrium viride. Sacc. 



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

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

 vStraight, rigid, with short branchlets ; conidia subfusiform, 

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

 18-24 X 6-7 jx. 



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



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



On rotten wood. 



Septocylindriuin Magnusianum. Sacc. 



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

 rugated portions of both surfaces of the leaves, very^ minutely 

 velvety; chains of conidia springing from a slightly inflated 

 basal hypha ; conidia cylindrical, ends obtuse, 20—25 x 4 /a, 

 ci)l<)urless, 1-septate, not constricted at the septum. 



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

 Svll.", iv. n. 1088. 



On fading leaves Trientalis Europaea. 



Sect. lY. STATJEOSPOHEAE. Sacc 

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



Fertile hyphae erect, simple, not septate, conidia radiating 

 from the tip and forming an incomplete liead. Conidia 

 elongated, colourless, with or without septa. 



Prismaria, Preuss, F. lioyersw., 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. 



