. Dansk botanisk arkiv. Plants; Plants -- Denmark. Fig. 206. Callithamnion byssoides Arn. A, B, branches with tetraspores (75:1), (150:1). C, carpogonial branch with trichogyne (160:1). Z), young cystocarp (160: 1). E, older cystocarp (75:1). F, cell with chromatophore (75:1). I contains a single nucleus (Fig. 206 5), but I wish to point out that I have not succeeded in seeing the nucleus in the older and larger cells. The plant was found with cystocarps, anthe- ridia and tetrasporangia in the months of January and February. It occurred in shallow water, in a sheltered place upon the roots of


. Dansk botanisk arkiv. Plants; Plants -- Denmark. Fig. 206. Callithamnion byssoides Arn. A, B, branches with tetraspores (75:1), (150:1). C, carpogonial branch with trichogyne (160:1). Z), young cystocarp (160: 1). E, older cystocarp (75:1). F, cell with chromatophore (75:1). I contains a single nucleus (Fig. 206 5), but I wish to point out that I have not succeeded in seeing the nucleus in the older and larger cells. The plant was found with cystocarps, anthe- ridia and tetrasporangia in the months of January and February. It occurred in shallow water, in a sheltered place upon the roots of the mangroves or upon other algæ growing here. St. Croix: The Lagoon of Christiansted. Geogr. Distrib.: Atlantic coast of Europe and North Africa, Mediterranean Sea, Atlantic coast of North America, West Indies etc. 3. Callithamnion spec. This plant being quite sterile (only once a speci- men was found with a few nearly ripe tetraspor- angia) I have not been able to determine it exactly, but as it was found abundantly in some places in deep water I just want to give a short des- cription of it and a few figures too (Fig. 208).. Fig. 207. Callithamnion byssoides Arn. Antheridial stand. (About 350 : 1). I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Dansk botanisk forening. Kbenhavn : Dansk botanisk forening


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