410 97. GBAMINEiB. 



small, rounded .below, chiefly collected at, the ends of the 

 branches. — Dry gravelly places. A. VI. E. S. I. 



5. A. prte'cox (L.),; pan.: spihelihe ohlong, apikelets scarcely 

 rounded below, mun from below the middle usually near the 

 base of the pale and extending considerably beyond its attenuate 

 deeply .bifid tip,— ^. ^. 129a -P. ,?5i, ^ueraa KMCh.— Height 

 1 — Sin. Pan. close,, oval or qblong., L. very narrow..— Dry 

 and sandy places. A. IV. V. ■ ... E. S, I. 



28. TEip'TTrM: Pers. 



1. T.jlavedcens (Beauv.) ; pan. much branched diffiise equal, 

 gl. very unequal sibout S-flowered. — P. 54. Avena Sm., E. B. 

 962. — ^St. about a foot high. Badical 1. a,nd- sheaths hairy. 

 Spikelets yellowish. Upper gl. oblong-lanceolate, acuminate. 

 Floral axis hairy, hairS* short. — Fields. P. VII. E.S.I. 



\_T'. subspic4tum (Ft.) ; pan, spikelike ovate cylindrical dense. 

 " In alpibus Angliss." Anders. 69. Should be looked for. I can- 

 not obtain information from Sweden.] 



29. Ayi;(na Lii;m. Qat, 



* Upper gl. 5—rQ-vemed. Spikelets Ultimately/ drooping. Moot 

 annual. No lateral clusters of leaves. L. alike on both sides. 



1. A.fai!ua.(h.'),; pan. erect, spikelets of about 3 fl.,,fl, falling 

 short of the gl. hairy at the base, lijwer pale bifid at the end. — 

 JE. B. 2221. P. 37.— Height 3, feet. Fl wijh long fulvous hairs 

 at their base by which it may be distinguished from A. sativa, 

 the cultivated "Oat.- Corn-fields. A. V-II, Wild Oat. E. S. I. 



• t2. A. strigdsa (Schreb.) ; pan. secund, spikelets of about 2 fl,, 

 fl. equalling the gl., lower pale ending in 2 long straight ■ bristles. 

 ■^E. B. 1286. P. 26.— Ileight 3 feet. Very like A. sativa, but 

 readily distinguished, by the bristles at the end of the fl.^Com- 

 fields.' A.Vn. ' , : E, S. 



** Upper gl, 3r7veine,d. SpikeletS' erect. Popt perennial. Lateral 

 clusters of I, barren. L. with raised ribs. 



3. A. praten'sis (L.) ; pan. erect with simiple or slightly, divided 

 branches,_/. erect 3 — 6 exceeding the glumes,, 1. rough. — E., B. 

 1204., P. 82,— Root 'fibrous. Height nearly i feet St. usually 

 nearly round. L. Usually short, narrow, acute." Pan.-branches 

 usually simple^with only one spikelet.— /3. longifalia (Parn.) ; 

 1. much longeri^ — y. alpina; st. (often compressed and sheaths 

 keeled, pan.-branches often with several 5^-6-fl. spikelets, upper 

 pale less acute, 1. broader. I believe that none of these: charac- 

 ters are permanent. E. B. 2141. P. 53,^^. planivdmis of 



