266 VEGETATION 



Bidens leucantha Willd. Nassau (22); New Providence; Mangrove Cay, Andros; 



Abaco. 

 Salmea petrobioides Griseb. Beach near Nassau (25); common on shores of all 



the islands visited. 



Stemmodontia trilobata (L.) Cass. West road, Nassau (26). 

 Vernonia bahamensis Griseb. Pine-barrens, New Providence (53); Abaco. 

 Eupatorium ageratifolium DC. West road, Nassau (100). 

 Tridax procumbens L. Beach near Nassau (104). 

 Parthenium hysterophorus L. West road, Nassau (107). 

 Melanthera nivea (L.) Small. Fort Montague, Nassau; Little Mangrove Cay, Andros 



(134, 198). 



Emilia sonchifolia (L.) DC. Bluebeard's tower, Nassau (135). 

 Anastraphia northropiana Greenm. (Brass-wood). Bast road, Nassau (151). 

 Willughbtfya heterophylla Small. Damp pine-barrens, New Providence (164, 545); 



Abaco. Listed by Northrop as W. scandens, but the Bahama plant has now 



been given specific rank by Small. It is identical with the south Florida form. 

 Pluchea purpurascens Sw. Marshy places, West road, Nassau (173). 

 Pluchea foetida (L.) B. S. P. West road, Nassau (17-4, 356). 

 Pluchea odorata (L.) Cass. (Sour-bush). West road, Nassau (27); Mangrove Cay; 



Watlings Island; Long Island. 



Ambrosia artemisicefolia L. Grants Town, Nassau (291). 

 Ambrosia hispida Pursh. Nassau (34) ; common on sandy shores on all the islands 



visited. 



The plants that are given in the preceding lists may be summarized as 

 follows : 



Myxomycetes 11 



Fungi 22 



Lichens 40 



Algae '" 59 



Liverworts 8 



Mosses 3 



Total number of lower plants 143 



Ferns 14 



Flowering plants 423 



Total number of plants listed 580 



Of these there are 



Unidentified species of flowering plants 10 



Unidentified species of lower plants 6 



Plants identified but not collected 37 



Three new species are here first described ; they are Pithecolobium mucro- 

 natum Britton, Malvaviscus coJceri Britton, and Ernodea cokeri Britton. In 

 addition to these, two new species from our collection have already been de- 

 scribed. These are Neomeris cokeri Howe, an alga, and Torrubm cokeri Brit- 

 ton, a flowering plant. Three other new species first collected by us, but pub- 



27 This does not include five species of Algae collected in the Atlantic Ocean 

 and therefore not properly listed among the Bahama plants. 



