ASCOGONIUM

(Lat.),n.n. ®s)-ko(ko?)-gon(go?n)i?-u3m- (u‘m). From aoxés, a pouch or bottle, and yévos, an organ of repro- AN ASCOGONIUM. (PROM DE BARY, AFTER STAHL.) à sectlon through the thallus of a lichen; À, the hyphal branches (fungal portion of 4 the lichen); g, the gonidia (algal portion); a, the trichogyne; ¢, an as cogon lum; 2, an {nolated ascogönlum €, D, trichogynes projecting above the thellue and surrounded' by spermatia. N duction. Ger., re An organ discovered by Stahl in the Coltemaceæ, and believed by him to represent the carpogonium of other Ascomycetes, It consists of a spirally coiled tube connected with a vertical portion which ques above the surface of the plant and rouge which the spermatia act upon the which acts as the channel t} a. After the fertilization of the latter by the spermatia, it develops fackgnd pean enveloped in a distinct investment (sporocarp). , 54,75.