564 GKAMINK.i:. ((iKASS FAMILY.) 



approssfil , fk)\v("rs ininuto, ineinlinmacioiis, ratlicr tlisiaiit on ilio racliis ; lower 

 pulfji ohtuM-, ;j-iiervtai. (Toa (.oiifirta, Kll.) — Hivi-r-liaiiks, I'loriihi to Souili 

 Carolina. Auj;;. and Supt. — Panicle wliitisli. Spikelets 1"- I^" long. 



* * * Cnlins siiitfilc, erect, shorter than the large and sjirtadimj jntnicle, 



6. E. tenuis, Gray. " Tanielc virj;ately elongated (I°-2^° long), very 

 loose, the spreading branelies bearded in sonic of the lower a\\h, their remote 

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

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

 (lJ"-2" long), memhranaceou.s, as arc the oblong-lanceolate acute fl(nvcrs ; 

 lower palea distinctly S-ncrved ; the upper, ciliate-scal)rous." (j')ai/. (Poa te- 

 nuis, Ell.) — Greenville, South Carolina, Elliott; North Caiolina, Curtis. Aug. 

 and Sept. 11. ? — Leaves (li° - 2° long) and sheaths smooth or hairy. 



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

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

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

 obscurely 3-nerved. (Poa, L. P. hirsuta, 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 hristle-likc or capil- 

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

 long), 8-12-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 Fioiida to 

 South Carolina. Aug. and Sept. H. — Leaves narrowly linear, longer than 

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



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

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

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

 acute, strongly 3-nerved, rough-keeled. (Poa pectinacea, Mich.v. V. hirsuta. 

 Ell., ^-c, not o{ Michr.) — Dry sterile soil, Florida, and northward. Aug. and 

 Sept. — Panicle l°-l^°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 reflcxed ; 

 spikelets sessile or nearly so, 15 - 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-flowercd 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. Ma v and June. — Culms 2° -3° high. Leaves and sheaths scabrous. 



