TRIANDRIA* DIGTKIA. 67 



Panicles lateral and terminal, splkelets often crowded, 

 flowers numerous; stipula ol^solete, densely ciliate. 

 * Floivers entirely deciduous. 



19. conferta, El. (panicUs lonp: and very erect, axil- 

 liaiy and teem nal; branches in coi'glomerate sessile clus- 

 ters, crowded wiih membranaceo-is floners, spikelets 

 appearing- pectinate or serrate.) 20. nitida^ F,l. 

 ** Inner valve of ihe corolla and rachis persistent. 



21. parvifora, (branches of the panicle dichoiomously 

 divaricate; flowers distant, terminal, a})P'Oximating' by 

 pairs upon unequal pedicells, inner valve of the corolla 

 and rachis p*^rsistent; seed nrai-ly spherical, rugose. The 

 spikelets of this plant are somewhat glutinous. This is cer- 

 tainly not th> P. striata of Lamaik.) 22- tenella. (Culm 

 slender, leaves short and subulaie, panicle somewiiat ver- 

 ticillate, erect, branches capillar}, flexuose and appres- 

 sed, flowerinj^ towards their extrem.tit s. Spikelets few, 

 linear, somewhat acute, closely and incumberMly imbri- 

 cated. (Jalix unequal and very short; flowers ertct, ap- 

 pearing" alternate, short ovate, with an oblique apex, 

 and almost obtuse, obscurely nerved, with a purple 

 marg-in, and a whie scariose line at the point. Pos- 

 sessing- considerably the appearance of a Briza.) 



23. peciinacea. 24. erugrostns 25. megastachya, KoE- 

 LER (Briza EragrostiSy Lin ) 26. *obtt[sa.\ '27.spectubilis. 



f Panicle elongated, almost siniph biariched at the base, 

 branches erect; spikelets compressed, oblong-ovate, obtuse, up- 

 on very short peduncles, 8 to 15-flowered; valves of the calix 

 acute, nearly the leng-th of the 3nei ved flowers, inner valve with 

 1 nerve, the outer with 3; culm rather weak and compressed? 

 leaves flat and smooth, stipula obsolete, softly bearded. 



Obs. Culm simple, about 18 inches high; leaves few, rather 

 long, flat, and smooth, a little asperate on the maigin; panicle 

 about 4 or 5 inches long, simply branched near the base, run- 

 ning out almost into a raceme above; floscuh closely imbricated, 

 compressed; outer valve 3-nerved, truncate at the point; sta- 

 mina 3, short; styles slender, .-imply pennate. 



Briza vire7is? Walter. Fior. Car. 79. 



Closely allied to t.Se B. Eragrostis, (Poa meg as t achy a) but 

 readily distinguished by its unbrynched, weak, and compressed 

 stem, the length of its leaves, which are not mvolute and rigid, 

 the scattered few-flowered panicle, and particularly the obtuse 

 points of the flower glumes, and lastly by the cafix, in which 

 the larger valve is 3-nerved, and consequently similar to the 

 corolla, while the calix glumes of the Ppa megastachya have 

 each but a single nerve, a character which not only distinguish 

 es it well from the present species, but also from the P. Era- 



