F. Børgesen: Rhodophyceæ of the Danish W. Indies. 



319 



Both forms were 

 dredged in deep 

 water (about 30 

 meters) and both 

 were found at: 



St. Jan: oft 

 Cruz Bay. 



Geogr.Distrib. 

 Dasya mollis occurs 

 at the warmer parts of 

 the American Atlantic 

 coast. 



3. Dasya caraibica 



nov. spec.*) 

 Frons ca. 20 cm 

 alta, rosea-coccinea, 

 teretiuscula, fiHfor- 

 mis, quoquoversum 

 ramosa, articulata, 

 polysiphonia, singu- 

 Hs articuhs e celluhs 

 pericentrahbus qui- 

 nis circa celhilam 



centralem positis 

 formatis, celhihs ca. 

 400—500 ,u longis. 

 In adultiori parte 

 plantarum irons cor- 

 ticata, supra ramu- 

 losa, ramuhs in superiori parte ramorum aggregatis ocellatisque, infra 

 nuda- 



Ramuli monosiphonii, identidem pseudodichotomi, ca. 4 mm 



*) I have had some doubts whether this plant most rightly was refer- 

 able to Dasya ramosissima äs a variety only or to be considered as a 

 proper species, having had no authentic material of related species to 

 compare with. I am much obliged to Mr. Fraa'k S. Collins for having 

 compared one of my plants with specimens in his herbarium and for having 

 written to me that he could not identify it with anything he knows. 

 Mr. Collins has also sent my specimen to Dr. Howe who expressed 

 his view in a similar way. 



Fig. 322. Dasya caraibica nov. spec. 



Part of the thallus. 



(About natural size). 



