282 



BOTANY. 



the herbarium, sends up vertical hyphse, which swell up at 

 the top, and bear a large number of small protuberances or 

 branches, the sterigmata {A. c, st. Fig. 191). Each sterigma 

 produces gradually a long chain of conidia, so that each 



Fig. 191. — Eurotium repens. .4, a portion of the mycelium, with erect byplia, c, 

 bearing nt its top a radiating cluster of sterigmata, st, from which the Gonidia have 

 fallen ; as, young carpogonium— below it a younger branch is beginning to coil spi- 

 rally to form another carpogonium. B, the carpogoniuip, as, and the antheridium, p. 

 O, the same beginning to be surrounded by the enveloping branches which grow out 

 from its base. D, sporocarp. S, F, sections of unripe sporocarps ; w, outer wall ; 

 /. inner cells of stertle tissue ; as, developing cnrpogonium, giving rise to branches 

 from which asci are produced. G, an ascus containing eight uscospores, H, ripe as- 

 cospore. Highly magnified.— After De Bary. 



vertical hypha is terminated by a round mass, made up of 

 these radiating strings of conidia. The sexual organs ajopear 

 a little later than the conidia. The end of a branch of the 

 mycelium becomes coiled into a hollow spiral {A, as. Fig. 



