FUNGUS-FLOKA. 



CLADOTKICHUM. Corda. (fig. 1, p. 397.) 



Sterile iiyphae creeping, fertile ascending, rather rigid, 

 branched, dark-coloured, swollen here and there; conidia 

 1-septate, coloured, originating from the tips of branchlets ; 

 usually in short chains. 



Cladotrichum, Corda, in Sturm's Deutschl. Fl. t. 20 ; Sacc., 

 Syll., iv. p. 370. 



The dark, branched threads with nodulose swellings here 

 and there, and the 1-septate spores, mark the genus. 



Cladotrichum Cookei. Sacc. (fig. 1, p. 397.) 



Effused, black ; hyphae branched, forked, nodulose, septate, 

 upper joints inflated or cupulate, conidia oblong, constricted, 

 1-septate, obtuse, often collapsed at the extremities, and then 

 apparently truncate, 18-20 x 9-10 p.. 



Cladotrichum CooJcei, Sacc., Syll., iv. n. 1 784. 



Cladotrichum uniseptatum, Cke., Grev., v. iii., p. 182, pi. 48, 

 f. 2. 



On sticks ; forming thick black velvety patches sometimes 

 nearly an inch in length. 



Cladotrichum fuscum. Sacc. 



Tufts thin, indeterminate, brown ; hyphae intricately inter- 

 woven, ascending, branched, wavy, branches diverging, 

 obtuse ; conidia oblong, 1-septate. 



Cladotrichum fuscum, Sacc., n. 1800 (not n. 1786). 



Macrotrichum heterosporium, Grev., Ed. Phil. Journ., iii. 

 t. 1. 



On dead capsules of Gcntiana campestris. 



Cladotrichum triseptatum. B. & Br. 



Forming broadly effused, jet-black minutely velvety 

 patches ;_ hyphae repeatedly forked, septate, olive-brown, 

 5-7 ju, thick, tips with one or more globose swellings; conidia 

 oblong, tips very obtusely rounded, 3-septate, constricted 

 at the middle septum, 14-16 x 7-8 /x, dark olive-brown, at 

 length nearly opaque. 



Cladotrichum triseptatum, B. & Br., Ann. Nat. Hist., n. 511, 

 pi. 5, f. 7, ser. ii. vol. vii. 



On stumps. 



