564 GRAMINE.E. (GRASS FAMILY.) 



appressed ; flowers minute, membranaceons, rather distant on the rachis ; lower 

 palea obtuse, 3-nerved. (Poa conferta, Ell.) River-banks, Florida to South 

 Carolina. Aug. and Sept. Panicle whitish. Spikelets 1" - l" long. 

 * * * Culms simple, erect, shorter than the large and spreading panicle. 



6. E. tenuis, Gray. "Panicle virgately elongated (l-2 long), very 

 loose, the spreading branches bearded in some of the lower axils, their remote 

 divisions and long diverging pedicels capillary; spikelets 2-6- (sometimes 7- 

 12-) flowered, pale or greenish; glumes lanceolate or awl-shaped, very acute 

 (l"-2" long), membranaceous, as are the oblong-lanceolate acute flowers; 

 lower palea distinctly 3-nerved ; the upper, ciliate-scabrous." Gray. (Poa te- 

 nnis, Ell.) Greenville, South Carolina, Elliott; North Carolina, Curtis. Aug. 

 and Sept. y. ? Leaves (1 - 2 long) and sheaths smooth or hairy. 



7. E. capillaris, Nees. Panicle widely expanding, the lower axils mostly 

 bearded : spikelets very small (1" - 1 J" long), 2 - 4-flowered, mostly purple, on 

 long diverging capillary pedicels ; glumes and flowers ovate, acute ; lower palea 

 obscurely 3-nerved. (Poa, L. P. hirsnta, Michx.) Dry uncultivated fields, 

 Florida, and northward. Aug. and Sept. Leaves and sheaths smooth or 

 hairy. Panicle 1 - 2 long. 



8. E. nitida. Panicle (l-3 long) reclining, the bristle-like or capil- 

 lary branches erect-spreading, naked in the axils ; spikelets linear, flat (3" -4" 

 long), 8 1 2-flowered, on erect-spreading pedicels l'-2' long ; lower palea acute, 

 3-nerved, nearly smooth on the keel ; leaves and sheaths very smooth and shin- 

 ing. (Poa nitida, Ell.) Low grassy places along the coast, West Florida to 

 South Carolina. Aug. and Sept. 1J. Leaves narrowly linear, longer than 

 the short (6' -9' high) culm. 



9. E. pectinacea, Gray. Panicle erect, widely spreading, or the rather 

 rigid and hairy branches at length reflexed ; spikelets purple, flat, about 8-flow- 

 ered, shorter than the erect or slightly spreading pedicels ; lower palea ovate, 

 acute, strongly 3-nerved, rough-keeled. (Poa pectinacea, Michx. P. hirsuta, 

 EU., $-c., not of Michx.) Dry sterile soil, Florida, and northward. Aug. and 

 Sept. Panicle 1- H long. Leaves and sheaths mostly clothed with long 

 soft hairs. 



Var. refracta. Smooth throughout, or the sheaths of the short and rigid 

 leaves bearded at the throat ; panicle (6' - 12' long) with the branches reflexed ; 

 spikelets sessile or nearly so, 1 5 - 20-flowered ; lower palea faintly 3-nerved. 

 (Poa refracta, Ell.) Damp soil, Florida to North Carolina. Spikelets about 

 5" long. 



33. DACTYLIS, L. ORCHARD-GRASS. 



Perennial grasses, with simple culms, keeled leaves, and 2 - 7-flowered spikelets 

 crowded in a 1-sided glomerate panicle. Glumes and lower palea herbaceous, 

 keeled, awn-pointed, rough-ciliate on the keel, the latter 5-nerved. Stamens 3. 

 Grain free. 



1 . D. glomerata, L. Near Charleston, Elliott, and northward. Intro- 

 duced. May and June. Culms 2 -3 high. Leaves and sheaths scabrous. 



