﻿Eustachvs ix North America 443 



erly referred there having come under our observation. About 

 the name which we have adopted for this plant, C. Tcxana, there 

 can be no doubt as the type has been seen. 



8. Chloris barbata (L.). 



Andropogon barbatum L. Amoen. Acad. 5: 412. 1759. Not 

 of Mant. 302. 1767. 



Andropogon polydactylon L. Sp. PI. 1483. 1763. [Ed. 2.] 



Ckloris polydactyta Sw. Prod. 26. 1788. 



Culms 5-10 dm. tall, round or slightly flattened ; nodes 3 or 

 4 : culm leaves 3 or 4 ; sheaths striate, the lower ones overlapping, 

 the upper shorter than the internodes ; ligule a scarious ciliolate 

 nng about 1 mm. broad ; blades 6 dm. or less long, 1 cm. or less 

 wide, attenuate into a long slender point, smooth on both surfaces, 

 rough on the margins, usually densely pilose on the upper surface 

 at the base, just above the ligule, with hairs 3-4 mm. long : in- 

 florescence at length long-exserted ; spikes 6-25, usually a dozen 

 or more, flexuous and more or less spreading, 5-1 5 cm. long, com- 

 monly more than 10 cm. : spikelets, exclusive of the awns, about 

 3 mm. long : scales 6 ; outer empty ones acuminate, the first scale 

 about three fourths as long as the second (which is about 3 

 mm. long) and broader ; third scale, with the callus short-pilose, 

 about 2.25 mm. long, in side view inequilaterally elliptic and about 

 75 mm. wide, the nearly straight midnerve much less curved than 

 me lateral nerves, all the nerves pilose, the midnerve to above the 

 middle with hairs about .5 mm. long, the lateral nerves from below 

 me middle to the apex with intermixed hairs of irregular length 

 2 ~3 mm. long, the hairs extending much beyond the apex of the 

 scale, the brown awn inserted just below the summit, 3-4 mm. 

 lo ng, the palet about as long as the scale ; fourth scale about 1.3 

 mm. long, in side view obovate-elliptic and about .5 mm. wide, 

 obliquely truncate at the crenulate apex, the brown awn inserted 

 just below the summit, 2.5-3 mm - lon g \ fifth scale ^angular, a 

 mtle more than one half as long as the fourth ; sixth scale about 

 °ne half as long as the fifth ; grain elliptic, about 1 mm. long. 



South peninsular Florida. Also in the West Indies and South 

 America. Collected in this country, so far as indicated by the ma- 

 terial at our disposal, only by Mr. J. H. Simpson. 



A word in regard to the history of the name of this plant may 



e of interest. Linnaeus in the Amoenitates Academicae,* in an 



article on the plants of Jamaica, published an Andropogon barbatum 



1759. 



