AliTIIKOBOTRYS M Y COGONE. 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, 

 smooth, almost colourless. 



Arthroboinjs rosea, Massee, Journ. Roy. Microscop. Journ., 

 vol. v., p. 758, pi. 13, figs. 0, 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 difference 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, 35-40 x 20-25 p.. 



Mycogone rosea, Link, Obs., i. p. 1C; Sacc., Syll., iv. 

 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, 283(3 



X 18-20 p. 

 Mi/coyone cervina, Ditm. in Sturm's D. F., t. 53; Sacc., 



Syll., iv. i). 900. 



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



Mycogone anceps. Sacc. 



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

 forked or vaguely branched, with scattered septa, yellowish ; 

 conidia sometimes almost globose, 20 /* diam., Kometimea 



z 2 



