. Introduction to cryptogamic botany. Cryptogams. INTRODUCTION TO CRYPTOGAMIC BOTANY. 91 bursts through the integuments and becomes free. In (Edogo- nium, in like manner, an aperture is formed for the admis- sion of the spermatozoids to the endochrome, which then acquires an integument, and becomes a spore, while in Bul- bochcete, the same purpose is effected by a little fissure ; the spore of the latter falls out after impregnation and then elon- gates, the endochrome dividing at length into four, each por- tion of which gives rise to a zoospore, furnished with two bundles of flagelliform cih
. Introduction to cryptogamic botany. Cryptogams. INTRODUCTION TO CRYPTOGAMIC BOTANY. 91 bursts through the integuments and becomes free. In (Edogo- nium, in like manner, an aperture is formed for the admis- sion of the spermatozoids to the endochrome, which then acquires an integument, and becomes a spore, while in Bul- bochcete, the same purpose is effected by a little fissure ; the spore of the latter falls out after impregnation and then elon- gates, the endochrome dividing at length into four, each por- tion of which gives rise to a zoospore, furnished with two bundles of flagelliform ciha. 69. Both in (Edogonium (Fig. 26, a, c) and BulbochoBte (Fig. 26, 6) little bodies* are formed on the walls of the spore cell, which seem, at first, like germinating spores. They acquire one or two dissepiments, and then discharge their contents from the ruptured apex. These, in all probability, are the antheridia. Their existence has only very lately been published, but they have been known some time to close observers. I have a sketch from Mr. Thwaites, in a letter dated April 22, 1846, which is here reproduced (Fig. 26, a); and I also received a mounted specimen, at the same time, in which the bodies are some- times more numerous than in the figure. Here and there. Fig. 26. a Fertile joints of the (Edogonium with Antheridia, from a sketch by Mr. Thwaites, compared with a mounted specimen, April 18, 1846. b Spore case of Bulhocheete crassa, Pringa., with Antheridium, from a mounted specimen from Mr. Thwaites, May, 1847. c Zoospores of (Edogonium vesicatum, after Thuret. * Thuret has evidently figured one of these, 1, c, tab. 19, fig. 9, though he was not aware of its nature. These little bodies forcibly remind one of the processes produced on the spores of Dacrymyces deliquescens. Dub., as mentioned above, p. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these il
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