102 



This species grows in shallow water and in somewhat shel- 

 tered places. 



It seems to be common. It has been collected in the following places. 

 St. Croix: Coakley Bay, Christianssteds Har- 

 bour, Rust up Twist, Cane Garden, Sandy 

 Point, Lime Tree Bay. Some old specimens 

 from St. Thomas, collected by RAVN, are 

 found in the collections of the Botanical Mu- 

 seum, Copenhagen. 



Geogr. Distrib. : West Indies. 



Fig. 108. Galaxaura squalida Kjellm. 

 Part of the thai! us showing the groups 

 of hairs occurring now and then espe- 

 cially in the young parts of the thal- 

 lus. '(About 1,5:1). 



Fig. 109. Galaxaura squalida Kjellm. 

 Transverse section of the thallus 

 with lobed cells and assimilating 

 filaments, one of which is ramified. 

 (About 150:1). 



7. Galaxaura squalida Kjellm. 

 KJELLMAN, F. R., Om Floride-slagtet Galaxaura, p. 55. 



This species has been described from specimens collected at 

 St. Croix by ORSTED and preserved in Herb. ARESCHOUG in Stock- 

 holm. In the herbarium of the Botanical Museum, Copenhagen. 

 I have found several of ORSTED'S specimens belonging to this 

 species. The description below is especially based upon my own 

 material. 



The plant (Fig. 108) forms dense richly ramified tufts which 

 are fixed to the substratum by means of a broad disc composed 



