. The structure and development of mosses and ferns (Archegoniatae). l in Java. This has allthe appearance of a very large acrogynous form, and also the typical three-sided apicalcell; but in regard to theposition of the sexual or-gans it is typically ana-crogynous. These and theHaplomitriese form a per-fect transition from theAnacrogynse to the Acro-gynse. The multicellular gem-mae of Blasia have been al-luded to. They are pro-duced in long flask-shapedreceptacles, and when ma-ture forrn nearly globularbrownish bodies whosecells contain much oil, andwhose stalk consists of asimple row of cell
. The structure and development of mosses and ferns (Archegoniatae). l in Java. This has allthe appearance of a very large acrogynous form, and also the typical three-sided apicalcell; but in regard to theposition of the sexual or-gans it is typically ana-crogynous. These and theHaplomitriese form a per-fect transition from theAnacrogynse to the Acro-gynse. The multicellular gem-mae of Blasia have been al-luded to. They are pro-duced in long flask-shapedreceptacles, and when ma-ture forrn nearly globularbrownish bodies whosecells contain much oil, andwhose stalk consists of asimple row of cells. Amongthem are glandular hairs,which secrete mucilage, bythe swelling of which thegemmae are loosened fromtheir pedicels, as in Mar-chantia. Similar but sim-pler gemmae having usuallythree cells occur in Treubia(Goebel (13)). Blasia is also characterised by the presenceof colonies of Nostoc within the thallus. These occupy cavi-ties in the bases of the leaves and are normally always present. The HaplomitrieceThe two genera, Haplomitrium and Calobryum, which con-. B
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