^ TRIANDRIA DIGINIA, 409 



11. Vagixatum. E. 



P. glabcnimum ; cul- I Very glabrous ; stem 

 mo rcpcntc, ramoso ; fo- creeping, branching ; 

 liis lincaribus ; spicis pic- | leaves linear; spikes gen- 

 rumque binis, terniinali- j erally two, terminal, 

 bus, folio terminal! vagi- sheallied by a terminal 

 iiatis. E. I leaf. 



stem l*:— 18 inches long, sUgliUy compressed, mucli branched near 

 the summit. Leaves linear, short (1—2 inches), acute ; the s}M?aths of 

 the upper leaves longer than me joints, and sometimes there are 2 

 leaves from each joint. Spikes at the extremity of each brancli, one 

 nearly sessile, the other on a peduncle 1—2 inches long ; a leaf from 

 the summit of the branch with its sheath envelopes the sessile spike 

 and the peduncle of the other. Rachis linear, straight, wide, the back 

 Hat, the sides indexed and covering one half t!ie flower, finely frinf;ed. 

 Floicers in two rows, one from each bud, sessile. Valves of the cali/x 

 equal, ovate, nearly acute, 3 nerved. 



Tliis species seems to connect this genus to the Ceresia. Yet it may 

 be remarked that in this plant the valves of the calvx are equal, the 

 midnb distinct, and the structure exactly similar to "the other species 

 <)f paspalum. In the Ceresia the valves of the calyx are unequal, and 

 the midnb aWogcther wanting. The rachis in this, is wide and covers 

 a part of the flower, but in the Ceresia, it so completely protects the 

 nower tliat the calyx becomes colourless (etiolated). 



Grows in humid soils. Near Savannah— Dr. Baldwin. 



Flowers ill the Summer. Sheathed Faspalum, 



■ 



CERESIA. Pj:rsoox. 



JloscuU lateralcs, bif^i- | Flowers lateial, two 

 ni,sub racbi lata, membra. } rowed, mider a wide 

 nacea, cymbiformi. Ca- j membranous, boat-shap! 

 iyx S-valvis, i-florus. j ed racbis. Calyx 2 valv- 



1. Fluitans. E 



ed, 1 flowered 



C. culmo repente, as- I Stem creeping and as- 



cendcntcque, plerumque cending, generally float- 



luiitante ; fohis scabris ; ing ; leaves scabrous ; 



spjcis plunmis, glumis spikes numerous; glumes 



can cmis albis, puiictatis, of the calyx white, dot. 



Parce pilosis. ted, a litde hairy. 



Paspalum rocmbranaceum ? Walt. p.. 75, 

 r. mucronatum, Muhl. Cat. 



