Archive image from page 220 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 F. Borgesen: Rhodophyceæ of the Danish W. Indies, 213 irregularly arranged walls in a number of small cells or rather short filaments, the end cells of which are the antheridia (Figs. 196 d—h). The procarp occurs terminally upon short branchlets (Fig. 195 b). When fully developed it (Fig. 197) consists of a basal cell from which the carpogonial branch issues, and a sterile cell nearly opposite to it; in the middle we find the large auxiliary cell and above it a ster
Archive image from page 220 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 F. Borgesen: Rhodophyceæ of the Danish W. Indies, 213 irregularly arranged walls in a number of small cells or rather short filaments, the end cells of which are the antheridia (Figs. 196 d—h). The procarp occurs terminally upon short branchlets (Fig. 195 b). When fully developed it (Fig. 197) consists of a basal cell from which the carpogonial branch issues, and a sterile cell nearly opposite to it; in the middle we find the large auxiliary cell and above it a sterile apical cell. The carpogonial branch is com- posed of_ 3 cells and the pjg gg, Mesothamnion caribaeum nov. carpogonium with the spec. Development of cystocarps. a, the trichop-vTip • thp last mpn- auxiliary cell is divided 'in three cells, b, iricnogyne, tne last men- advanced stage. (About 200:1). tioned is rather robust, nearly cylindrical and very persistent. By means of staining in Mayer's hæmalum I have been able to see the nucleus clearly as well in the auxiliary cell as in the other ones of the procarp except in the carpogonium, this most probably being due to the bad preservation of the material, this having been kept in rather weak spirit. After the fertilization the auxili- ary cell increases in size, and soon two cells are cut off, one at both ends of it (Fig. 198 a). These cells again are divided into smaller ones (Fig, 198 b). Not having had sufficient mate- rial I have not been able to follow the development in detail, but the Fig. 199. Mesothamnion cari- result of the further growth is that sent. (About 120:1). of several larger and smaller round- ish bodies consisting of the nume- rous carpospores (Figs, 199 and 200). Of these bodies the two on each side are the largest; so far I have been able to follow
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