53 389 



plujlla Mont., if I rightly understand that species, must be regarded as an extreme 

 form, nearly destitute of ramenta. I gathered what I lake to be Montagne's plant 

 at Vavau, in the Friendly Islands, where its peculiarities seemed to arise from the 

 circumstances of its habitat, which was in a very rapid tide-stream between two 

 islets". That the plant in a rapid stream adopts such a form seems to me very 

 natural, we only need to remember how the leaves of many phanerogams become 

 transformed when they grow in running water and just become ribbon-like. 



My specimens of var. Lamouronxii show for the rest a considerable variation. 

 A specimen (Nr. 2036) collected off America Hill at St. Jan in about 30 meters depth 

 was very like the figure of Turner and especially the fig. c, tab. 14 of Kützing (20). 

 Other specimens (Nr. 1121) from St. Thomas collected in the sound to the west of 

 Water Island in about 20 meters of water had some likeness with var. lœlevirens, 

 having rather long, bul somewhat feeble swollen ramuli, but these w'ere distichous. 

 Again, others like that here delineated (Fig. 31) collected off Hermitage at St. Jan 

 in the sound between this island and Tortola in about 30 meters of water, seem 

 to me to approach the var. corynephora; this was especially the case with a small 

 specimen found off Christiansfort at St. Jan in the sound between St. Thomas and 

 St. Jan in about 25 meters of water. 



Caulerpa racemosa is a very common species along the coast of the Danish 

 West Indies especially the varieties clavifera and uvifera; f. reducta is found at 

 St. Thomas: on the coral-reef which unites the Hurricane Island with St. Thomas. 

 Var. occidentalis was gathered in St. Croix: Longreef at Christianssted and near 

 Sandy Point, St. Thomas: in the harbour at Charlotte Amalie and St. Jan: at 

 Christiansfort; var. lœteoirens is only found St. Croix: in the lagoon of Christians- 

 sted; var. Lamouronxii St. Thomas: in the sea west of Water Island, St. Jan: in 

 the sound between St. Thomas and St. Jan off Christiansfort and to the north of 

 St. Jan off America Hill and Hermitage. 



Geogr. Distrib. In all tropical seas. 



