AMBLYOSPOmUM — PENICILLIUM. 299 



numerous minute points that bear the chains of brightly- 

 coloured, fusiform conidia that aie abruptly" truncate at 

 both ends. 



Amhh/ospormm, Fres., Beitr., p. 99, t. xii. f. 17-21 ; Sacc, 

 Syll., iv. p. 77. 



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



Tufts broadl}^ effused, forming a woolly felt of a bright 

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

 septate, 20-25 /x thick, branched, the concatenate conidia 

 forming a bright orange head, conidia elliptic, both ends 

 contracted and abruptly truncate, 15-25 x 10-12 /x. 



Amhh/osjjorium hotrytis, Fres., Beitr., p. 99, t. xi. f. 17-21; 

 Sacc, Syll., iv. n. 372. 



On deca^n'ng fuugi of various species. 



The mould often completely covers the host with a dense 

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

 numerous bright orange sclerotia are formed in the substance 

 of the funccus 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, ^p. pL, Fungi, i. p. G9 ; 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. (fi^;. 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 fx diam., the chains of conidia produced at the tips of the 

 ultimate branchlets. 



