Archive image from page 375 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 368 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. The mother-cell of the tetrasporangium increases much in size, especially in length, it becomes densely filled with granular contents and divided zonately in four spores. The cystOcarps are figured by Harvey, 1. c. They form rather large semiglobular bodies upon the branchlets with an opening in the upper end. This plant has been found as well in shallow as in deep sea down to a depth of about 30 meters. When growing in shallow w
Archive image from page 375 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 368 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. The mother-cell of the tetrasporangium increases much in size, especially in length, it becomes densely filled with granular contents and divided zonately in four spores. The cystOcarps are figured by Harvey, 1. c. They form rather large semiglobular bodies upon the branchlets with an opening in the upper end. This plant has been found as well in shallow as in deep sea down to a depth of about 30 meters. When growing in shallow water the plant is very robust and does not reach any great height; in deep water it becomes more slender and more than a foot high. When found in shallow water it occurred in more protected places. It was found with tetraspores and cystocarps in the month of March. St. Croix: In the harbour of Christianssted. St. Thomas: Near the East end of the island; near Thatch Cay (leg. Dr. Th. Mortensen). St. Jan: Cruz Bay, near Great St. James. Geogr. Distrib.: Florida, West Indies. Genus incertæ sedis. Wurdemannia Harv. 1. Wurdemannia setacea Harv. Harvey, W. H., Nereis Fig. 360. Wurdemannia setacea Harv, Part of the thallus. (About 7i). Part II, p. 246. Kitzing, F., Tab. Phycol., vol. XIX, tab. 26. The plant forms low, dense tufts or cushions upon other algæ, stones etc. It consists of a filiform, terete, rather rigid thallus, ramified very irregularly to all sides and felted together (Fig. 360). Some of the branches grow out to main branches, others remain shorter or longer get- ting a spinelike appearance with their acute summits. The thallus is fixed to the substratum by means of small discs which can be
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