[Kroni the Bulletin of the Tohrey Botanical Club, 41 : 1-24. 20 F 1914.] 



Studies of West Indian plants V 



Nathaniel Lord Britton 



23. ADDITIONAL SEDGES FROM JAMAICA* 



Cyperus comosus Poir. in Lam. Encycl. 5: 185. 1817 



Shettlewood, Hanover {Harris 11647). 

 Distribution: Cuba; continental tropical America. 



Scirpus cubensis Kunth, Enum. 2: 172. 1837 



River Head, near Ewarton (Underwood i860). 

 Distribution: Southern United States; Cuba; Hispaniola; 

 Trinidad; continental tropical America; tropical Africa. 



Rynchospora cymosa (Michx.) Ell. Bot. S. C. and Ga. 1: 58. 



1816 



Savannah, Upper Clarendon (Harris iiioj). 

 Distribution: Southeastern United States; Cuba; Hispaniola; 

 Porto Rico; Martinique; South America. 



Rynchospora jamaicensis sp. nov. 



Rootstocks short; culms clustered, slender, 6-8 dm. long, 

 reclining. Leaves 2-3 mm. wide, rather stiff, the lower 2-5 cm. 

 long, the middle ones 12-15 cm - l n g those subtending the clusters 

 of spikelets 6-10 cm. long; sheaths of all the leaves densely short- 

 pubescent; spikelets loosely panicled in several distant axillary 

 clusters and in a terminal one, short-pedicelled, the axis of the 

 inflorescence loosely pubescent; spikelets narrowly conic, 4-5 mm. 



* See Bull. Dept. Agric. Jam. 5: Suppl. 1. 1907- Bull. Torrey Club 35: 568, 569. 

 1909. 



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