. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 67 given short diagnoses of some new species, which has only added to the difficulties. Having now examined my West Indian ma- terial of this genus I have found that good characters are pre- sent not only in the shape of the assimilating filaments but also in that of the carpogonial branch, of the antheridia and the cysto^ carps. In the last mentioned, especially, the filaments surrounding the sporogenous filaments are very differently developed. In the specimens which are not easily recognizab
. Dansk botanisk arkiv. Plants; Plants -- Denmark. F. Børgesen: Rhodophyceæ of the Danish W. Indies. 67 given short diagnoses of some new species, which has only added to the difficulties. Having now examined my West Indian ma- terial of this genus I have found that good characters are pre- sent not only in the shape of the assimilating filaments but also in that of the carpogonial branch, of the antheridia and the cysto^ carps. In the last mentioned, especially, the filaments surrounding the sporogenous filaments are very differently developed. In the specimens which are not easily recognizable by means of the external habit, e. g. rami- fication, calcification etc., these characters of internal structure might be of great assistance. Judging from the de- scription of Butters ^) Lia- gora reminds one much of Trichogloea, the essential difference is that the carpo- gonial branch is lateral in Liagora, and terminal in Trichogloea. 1. Liagora elongata Zanard. Zanardini, G., in Flora, vol. 34, 1851, p. 35; Plant, in Mari Rubro ... (Memoria Isti- tuto Veneto, vol. VII, 1857, p. 274, tab. 6, fig. 1). Kützing, F., Tabulæ Phycol., vol. VIII, 18,58, pi. 94 II. Agardh, J., Epicrisis, p. 516; AnalectaAlgo- logica, Contin. Ill, p. Fig. 67. Liagora elongata Zanard. Part of a plant. (About 3:1). As pointed out by J. Agardh (1. c. p. 105) this species is characterized by the fact that the cells in the robust assimilating filaments (Figs. 68, 69 a) have nearly the same breadth through their whole length and further that the cells are seldom longer than double their diameter. The assimilating filaments are not much ramified; the branches arise mostly at an acute angle from the mother filaments and are all straight or nearly so. *) Butters, Fr. K., Observations on Trichogloea lubrica. (Minnesota Bo- tanical Studies, Third Series, Part I, 1903, p. 11). 5*. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabil
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