564 GRAMINE**:. (GKASS FAMILY.) 



3. E. riL6sA, Beauv. Panicle elongated-oblong, with rather erect branches 

 (except at flowering-time) ; spikelets 5 -12-flowered (2" -4" long, purplish-lead- 

 color), becoming linear, about equalling their pedicels; glumes (small) and lower 

 valea obtuse, the latter broadly ovate, \-nerved (lateral nerves obsolete). (P. pilo- 

 sa, L. P. Linkii, Kunth.) Sandy or gravelly waste places, S. New England 

 to Illinois, and southward. Aug. Plant 6' - 12' high. (Nat. from Eu.) 



4. E. Fninkii, Meyer. Much branched, diffuse (3' -8' high); panicle 

 ovate-oblong, rather dense, spreading; spikelets 2 - 5-Jlowercd (1 "-!-" long) on 

 slender pedicels; ylumes very acute; lower palea ovate, acute, rather obscurely 3- 

 nerved. (E. erythrogona, Nees, from the joints of the culm being mostly red- 

 dish.) Lo\v or sandy ground, Ohio to Illinois (opposite St. Louis, Drummond, 

 Engelmann), and southwcstward. Aug. 



5. E. Piil'Sllii, (Benin.?) Schrad. Sparingly branched at the decum- 

 bent base, then erect (- 2 high); panicle elongated, the branches widely 

 spreading,' very loose; spikelets 5-l8-f!owered, oblong-lanceolate, becoming 

 linear (2"-4" long), mostly much shorter than their capillary pedicels ; glumes and 

 lower palea ovate and acute, or the latter acutish, 3-nerved. (Poa tenella? Pursh. 

 P. Caroliniana, Spreng. P. pectinacea of authors, not of Michx.) Sandy or 

 sterile open grounds, New Jersey to Virginia, and southward. 



- H- Culms simple or branching only at the very base, firm, erect, from an annual or 

 perennial root, mostly forming thick tufts : leaves very long : panicle very large, com- 

 pound, often longer than the culm, with elongated and loosely /lowered branches ; their 

 axils often bearded. 



6. E. tenitis. Panicle virgately elongated (1-2| 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-) flow- 

 ered, pale or greenish ; glumes lanceolate or awl-shaped, very acute (1|" -2" long), 

 membranaceous, as are the oblong-lanceolate acute flowers ; lower pah a distinctly 3- 

 nerved; the upper ciliate-scabrous. ty? (Poa tennis, Ell. P. capillaris, Michx. 

 P. trichodes, Nutt. E. Geyeri, Stead.) Sandy soil, Illinois, Virginia? and 

 southward. Aug. -Oct. Leaves rather rigid, l2-2 long, glabrous or spar- 

 ingly hairy : the sheaths hairy or glabrous ; the throat strongly bearded. Flow- 

 ers much larger than in the next, fully l" long. 



7. E. Jlj>iBJfirfiS, Nees. Panicle widely expanding, usually much longer 

 than the culm, its spreading branches (mostly naked in the axils) and long 

 diverging pedicels capillary; spikelets rather terete, very small, 2 - 4-flowered, 

 greenish or purplish ; glumes and Jlowers ovate, acute (less than 1'' long); lower 

 palea obscurely 3-ncrvcd, scarcely keeled, the upper rough-ciliate. (1 (Poa capil- 

 laris, L. P. hirsuta, Michx.} Sandy dry soil and fields; common, especially 

 southward. Aug., Sept. Leaves and sheaths either very hairy or nearly gla- 

 brous, the former about 1 long, not rigid. Panicle l-2 long, becoming very 

 wide and diffuse. 



8. E. pectinacea. Panicle widely diffuse, its rigid divergent main 

 branches bearded in the axils ; the capillary pedicels more or le&i oppressed on the 

 secondary branches; spikelets flat, 5 - 1 5-flowered, becoming linear, purple or 

 purplish-tinged ; glumes and flowers ovate or oblong-ovate, acutish ; lower palea 



