. Botanisk tidsskrift. Plants; Plants -- Denmark. — 10 in rather sheltered locahties where it swings to and fro following the feeble motion of the sea. It was collected in the middle of February having at that time ripe or nearly ripe cystocarps. Only found once on the southern coast of St. Croix: at Long Point. decomposito-pinnato, non corticata. Callitlianmioii cordatum nov. spec. Caespites 2—4 cm. vel paulo ultra alti; fronde erectiuscula alterne Articulis diametros binas vel trinas longis, 200^ eras- sis; ramulis superioribus tenuioribus ca. S/x crassis, incurvis. Tetrasporangiis in interi
. Botanisk tidsskrift. Plants; Plants -- Denmark. — 10 in rather sheltered locahties where it swings to and fro following the feeble motion of the sea. It was collected in the middle of February having at that time ripe or nearly ripe cystocarps. Only found once on the southern coast of St. Croix: at Long Point. decomposito-pinnato, non corticata. Callitlianmioii cordatum nov. spec. Caespites 2—4 cm. vel paulo ultra alti; fronde erectiuscula alterne Articulis diametros binas vel trinas longis, 200^ eras- sis; ramulis superioribus tenuioribus ca. S/x crassis, incurvis. Tetrasporangiis in interiore latere pin- nularum sitis, oblique obovatis, triangulatini di- visis. Cystocarpia gemi- na, cordata, plana ssepe tantum ex uno strato car- posporarum constructa. E \ )| /) ^ XT // ^ I Frond 2—4cm. high; the main stem is below nearly straight with few side branches, becoming more flexuous and richly ramified higher up; near the top the axis is effaced. The base (Fig. 5 A) consists of very short, thick-walled cells, the wall about 18// thick and the whole cell as much as 200 fji or more thick. From the lowest cells near the base rhizoid-like branches grow downward and contribute to fix the plant. Higher up the cells grow longer becoming at the same time thinner, at first twice as long as broad (long. cell. = 300/^; lat, cell, = 160/i), until nearer the top they are 5—8 times as long as broad (long. cell. = 400//, lat. 50/^). The uttermost branches are often arch-shaped, bent inwardly (Fig. 5 C, Fig. 6); they are. Fig. 5. Callithamnion cordatum nov. spec. A, base of the plant (25:1). B, end of branch ^vith hair (100:1). C, branch with tetraspores (50:1). O, tetraspore (150:1). E, branch with antheridia (00:1). F, cell witli antheridia (150:1). (?, cystocarps (60:1). //, young procarp (150:1). /, older procarp with fully developed trichogyne (150:1). K. transverse section of a cystocarp (60:1).. Please note that these images are extracted from scanned page images that m
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisher, booksubjectplants
