AKTHKOBOTEYS — MYCOGONE. 339 



head of conidia springing from minute spicules on the 

 nodes ; conidia broadly pyriform, 1-septate, constricted at 

 the septum, upper cell almost globose, lower small, apiculate, 

 iimooth, almost colourless. 



Arihrobotrys rosea, Massee, Journ. Eoy. Microscop. Journ., 

 vol. v., p. 758, pi. 13, figs. 6, 7; Sacc, Syll., n. 896. 



On wet rotten branches. 



MYCOGONE. Link. (fig. 11, p. 274.) 



Hyphae branched, interwoven ; fertile branches short, 

 lateral. Conidia unequally two-celled, terminal cell largest, 

 often warted. 



Mycogone, Link, sp. pi. Fungi, i. p. 29. 



There is some difierence of opinion as to whether the 

 conidia are in reality two-celled, the so-called lower cell is in. 

 most species not cut off from the conidiophore by a septum, 

 of which it may be the inflated apex. 



Mycogone rosea. Link. 



Forming effused, velvety, rose-coloured patches ; hyphae 

 slender, colourless, densely interwoven ; conidia obovate, 

 reddish, two-celled, upper cell largest, warted, lower cell 

 paler, smooth, 36-40 x 20-26 /jl. 



Mycogone rosea. Link, Obs., i. p. 16 ; Sacc, Syll., ir. 

 n. 899. 



On various decaying Agarics. 



Mycogone cervina. Ditm. (fig. 11, p. 274.) 

 Forming greyish woolly tufts; hyphae slender, white, 



densely interwoven; conidia two-celled, obtuse, fawn-coloured, 



upper cell largest, warted, lower cell paler, smooth, 28-36 



X 18-20 ij.. 

 Mycogone cervina, Ditm. in Sturm's D. F., t. 63 ; Sacc, 



Syll., iv. n. 900. 



On species of Peziza, as P. macropoda, &c. 



Mycogone anceps. Sacc. 

 Tufts minute, ochraceous-olive, velvety, effused ; hyphae 

 forked or vaguely branched, with scattered septa, yellowish ; 

 conidia sometimes almost globose, 20 /a diam., sometimes 



z 2 



