. Dansk botanisk arkiv. Plants; Plants -- Denmark. 194 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. is from a more sheltered place. Compared with the above des- cribed specimens these are comparatively slender with longer branches. The erect filaments are several times dichotomously branched. The antheridial conceptacles occur in the ends of these long branches as against the often sessile ones in the form described above. The tetrasporic conceptacles (Fig. 183) have longer horns consisting of 4 joints ; female conceptacles I have not seen. As to the anatomy, the cells in the central strand are of abou
. Dansk botanisk arkiv. Plants; Plants -- Denmark. 194 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. is from a more sheltered place. Compared with the above des- cribed specimens these are comparatively slender with longer branches. The erect filaments are several times dichotomously branched. The antheridial conceptacles occur in the ends of these long branches as against the often sessile ones in the form described above. The tetrasporic conceptacles (Fig. 183) have longer horns consisting of 4 joints ; female conceptacles I have not seen. As to the anatomy, the cells in the central strand are of about the same length as those in the X Fig. 183. Jania pumila Lamx. Specimen found upon Zonaria. (About 20 :1). In referring this plant to Jania pumila I may point out that I have not been able to make any comparisons with original material; to arrive at an exact determination this seems necessary, the more so, as the original description is very poor and the accompanying figure of no value at all. The form Kützing has illustrated differs considerably from my plant. In naming my plant /. pumila I rely upon Hauck's description; this is based upon specimens from Puerto-Rico and seems to agree well with my plant. Hauck does not mention how far he has compared his plant with original material. The plant from Jamaica distributed in "Phycotheca ;, no. 799 seems to come very near to mine. This plant has only been collected a few times, but is most probably a common epiphyte upon larger brown algæ.. 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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