292 PUNGUS-FLOEA. 



Botryosporium pulchrum. Corda. 



Tufts lax, broadly effused, white; fertile branches long, 

 simple or forked, with numeious scattered short branchlets 

 of about equal length arranged in a racemose manner ; each 

 branchlet bears at its apex five short spicules or conidio- 

 pjiores, each of which in turn bears a cluster of conidia, the 

 whole framing a globose head. Conidia colourless, broadly 

 elliptical. 



Botryosporium pulchrum, Corda, Prachtflora, t. xix. ; Sacc, 

 SylL, iv. n. 266. 



On stems of herbaceous plants 



CEPHAL03P0KIUM. Corda. (fig. 23, p. 274.) 



Primary hyphae long, creeping and producing numerous 

 erect, scattered short branchlets at intervals ; these branch- 

 lets are of nearly equal length, and each bears at its tip a 

 globose head of conidia. 



Cephalosporium, Corda, Anl., p. 61; Sacc, Syll., p. 56; 

 Grove, Joum. Bot., t. 257, f. 3. 



Distinguished from Botryosporium by the creeping primary 

 ' hyphae, and also by the absence of distinct conidiophores at 

 the tips of the branchlets. Differs from Acremonium in the 

 capitate spores. 



Cephalosporium acremonium. Corda. (fig. 23, 

 p. 274.) 



Tufts dense, rather cottony, at first white, then pale rose; 

 primary branches creeping, secondary erect, not septate, 

 40-50 X 3 /i; terminal heads of conidia globose, 8-10 ii. 

 diameter; conidia colourless, elliptic-oblong; for a long 

 time remaining in clusters, 4r-5 X 2 ;«,. 



Cephalosporium acremonium, Corda, Icones Fungorum, iii. 

 p. 11, f. 29; Sacc, SylL, iv. n. 270. 



On stems of Mubus, Heracleum, on rotting wood and a. 

 Myxomycete. Heads round, pure white, about 10-12 fi. diam., 

 but varying in size from age. The long creeping stems are 

 sometimes suberect ; the branches often once, sometimes 

 tvrice forked, 30-40 //. high or more. Corda describes tha 

 spores as assuming a rosy tint, which no other author haa 



