AMBLYOSPORIUM PENICILLIUM. 299 



numerous minute points that bear the chains of brightly 

 coloured, fusiform conidia that are abruptly truncate at 

 both ends. 



Amblyosporium, Fres., Beitr., p. 99, t. xii. f. 17-21 : Sacc 

 Syll., iv. p. 77. 



Amblyosporium botrytis. Fres. (fig. 30, p. 313.) 



Tufts broadly effused, forming a woolly felt of a bright 

 orange-red colour ; fertile hyphae ascending, orange-red, 

 septate, 20-25 p. thick, branched, the concatenate conidia 

 forming a bright orange head, conidia elliptic, both ends 

 contracted and abruptly truncate, 1 5-25 x 10-12 p., 



Amblyosporium botrytis, Fres., Beitr., p. 99, t. xi. f. 17-21 ; 

 Sacc., Syll., iv. n. 372. 



On decaying fungi of various species. 



The mould often completely covers the host with a dense 

 felt of a brilliant orange-red colour. In some instances 

 numerous bright orange sclerotia are formed in the substance 

 of the fungus attacked. 



PENICILLIUM. Link. (fig. 22, p. 274.) 



Mycelium creeping, septate ; fertile branches erect, with 

 branchlets arranged in irregular verticils towards the 

 apex; conidia globose, catenulate, colourless or brightly 

 coloured. 



Penicillium, Link, sp. pi., Fungi, i. p. 69 ; Sacc., Syll., iv. 

 p. 78. 



Distinguished by the branchlets being arranged in 

 irregular whorls, or in a penicillate manner, and the chains 

 of globose conidia. 



* Glaucous or greyish. 



Penicillium glaucum. Link. (fig. 22, p. 274.) 

 Mycelium effused, creeping, white ; sterile hyphae creeping, 

 septate, interwoven ; fertile hyphae erect, apex penicil- 

 lately branched, branches single or in pairs, erect, once or 

 twice forked at the apex ; conidia concatenate, globose or 

 broadly elliptical, smooth, hyaline with a tinge of green, 

 4 p. diam., the chains of conidia produced at the tips of tho 

 ultimate branchlets. 



