254 PROCEEDINGS OF THE AMERICAN ACADEMY. 



G. damaecoruis J. Ag. Annotto Bay, Aug., 1894; Mauchioueal, 

 July, 1900, P. & B. P. B.-A., No. 788. 



G. divaricata Harv. In short tufts, Navy Island, Port Antonio, March, 

 1893, Nos. 155 and 228, H. Port Antonio, July, 1891 ; Port Morant, 

 Rio Bono, June, 1900, P. & B. P. B.-A., No. 789. Generally dis- 

 tributed but nowhere common. 



G. Domingensis Sond. Mauchioneal, June, 1900, P. & B. Found 

 only in a very limited station, in large tufts on rocks about one meter 

 depth, in rough water; very luxuriant plants, showing beautiful shades 

 of violet. 



By J. G. Agardh this is considered as merely a form of G. multipartita 

 var. polycarpa. Imperfectly developed specimens have some resemblance 

 to that variety, but well developed plants are quite different; the habit 

 reminds one rather of Laurencia pinnatifida. All three kinds of fruit 

 were found in the Manchioneal specimens, the cystocarps and tetraspores 

 as usual in this genus, the antheridia in crypts, as described by Thuret 

 for G. confervoides. The description of G. Krugiana in Hauck's Puerto 

 Rico list is quite suggestive of some of these specimens. 



G. ferox J. Ag. Washed ashore, Morant Bay, Julj^, 1894, P. & B. 



G. multipartita (Clem.) J. Ag. Port Antonio, July, 1891 ; Port Mo- 

 rant. Montego Bay, Ora Cabessa, Manchioneal, 1900, P. & B. No. 

 380, no locality, H. Near Kingston, Duerden. Chitty. P. B.-A., 

 No. 885. 



G. Wrightii (Turn.) J. Ag. Annotto Bay, Aug., 1894; Montego 

 Bay, June, 1900, P. & B. A few plants only. 



The fresh frond is very stout and densely branched, and not at all 

 compressed ; it shrinks much in drying, and herbarium specimens give 

 the idea of a flattened frond. 



Hypnea divaricata Grev. In large tufts on rocks in shallow water, 

 Montego Bay, Manchioneal, 1900, P. & B. 



H. musciformis (Wulf.) Laraour. On stones at tide mark, Port An- 

 tonio, March, 1893, Nos. 147 and 223 ; St. Ann's Bay, March 24, 1893, 

 No. 320, H. Near Kingston, Duerden. Common everywhere, P. & B. 

 Chitty. 



H. Valentiae (Turn.) Mont. Annotto Bay, Aug., 1894, P. & B. 



The species is here taken in the same sense as by Hauck, Hedwigia, 

 1887, Heft 1, to include H. nidifica J. Ag. and H. fruticulosa Kuetz. ; 

 forms corresponding to both of these occur at Annotto Bay. 



Cordylecladia irregularis Harv. Annotto Bay, Aug., 1894, P. & B. 

 Near Kingston, Duerden. 



