[[2 DISCOMYCETES [ CH - 



Hnmariagmnulata is a common red or orange coprophilous form. The 

 archicarp develops as a side branch from an ordmary hypha The apical 

 c I of this branch increases in size and becomes sphencal, formmg the 

 ooeonium (fi- 67) it contains large numbers of well-marked nucle,. When 

 it Ts Jgrown the oogonia! nuclei fuse in pairs (fig. 68 a), and the fusion 

 nuclei pass into the ascogenous hyphae (fig. 68 /,). There ,s no s,gn of e.ther 

 trichogyne or antheridium. 



Fig. 68. Hmnaria gramdata Quel.; a. fusion of nuclei in oogonium, xjsoo; b. oogonium 

 giving rise to ascogenous hyphae, x 1250; after Blackman and Fraser. 



Vegetative cells grow up and invest the archicarp, forming a close 

 pseudoparenchymatous sheath in which the ascogenous hyphae ramify. 

 They give rise at last to asci in the usual way. 



Four chromosomes have been recorded in the ascogenous hyphae, 

 eight in the first division in the ascus and four in the two subsequent 



