266 VEGETATION 



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



Abaco. 

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



the islands visited. 

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

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

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

 Tridax procumbens L. Beach near Nassau (104). 

 Parthenium JiysteropUorus 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). East road, Nassau (151). 

 Willughbcrya 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 fatida (L.) B. S. P. West road, Nassau (174, 356). 

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



Watlings Island; Long Island. 

 Ambrosia artemisiu' folia 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 tlie preceding lists may he 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 Pithecolohiiun mucro- 

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

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

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

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



-' This does not include five species of Algse collected in the Atlantic Ocean 

 and therefore not properly listed among the Bahama plants. 



