Stcuochloa. GIIAMINE.E. 315 



.slicatlis Ix^'iviiif,' Roattorod ratlior loiij,' weak hairs : iniporfoctly tli(ncious ; ])anicln 

 varying' I'loiu ovate, witJi si)litary rcw-llowcnMl sprcadiii;^' rays, U> il(>iisn ami capitalc ; 

 s|)il<(>l('t.s liiu'ar-laiicoolalo, 1 - tO-llowcriMl, IVom 2 lines tti an iiicli loiif? or more. — 

 Agrost. Hrasil. 511, and V\. IJras. ii'-, 1 IH. J\,ti )rj>t(ins, MW.Uk. Flur. i. OU, t. 11. 

 r. h?/2moide.% Lam. 111. i. 185. I\ cnpitata, JS'utt. Flor. Ark. IK). 



Sacramento (Pickcrbuj) ; Oregon [lIoiccU) ; coniinou aloiij; rivers across the continent, extend- 

 ing to Mexico and Sontli America. The branches arc usually 2 to 5 inches liigii, but sometimes 

 much sliorter and so densely llowered as to liide the toliage. 



2. E. poaeoides, l]cauv. Culms dill'iisely spreading : branches ascending from 

 a geniculate hase, to 15 inches high : leaves flat, mostly smooth ; sheaths with few 

 long .'(preading hairs : panicle narrow, crowded, with short s])reading branches : 

 spikelets lance-linear or fdjloiig linear, .3 to 10 lines long, 8 - 20-llowered, often lead- 

 colored : lower pulet obtuse, the lateral nerves greenish and prominent. — Agrost. 

 t. 14, lig. 11. 



Var. xnegastachya, Cray. Sheaths mostly smooth : panicle often crowded ; 

 spikelets larger, becoming linear, sometimes nearly an inch long and whitish when 

 old, 10-50-ilowered ; has an unpleasant odor. — i\Ian. G31. E. megastachya, Link. 

 Briza Eragrostis, Linn. 



San Francisco ; Monterey, Ifnnilr. A native of Europe and introduced as a common weed in 

 nearly all parts of the Eastern States. So variable and changing so mucli with age that it is often 

 dillicnlt to distinguish between the type and the variety. 



3. E. alba, Presl. Culms 12 to 18 inches high : leaves narrow, setaceously con- 

 volute at apex, the uppermost equalling the panicle : panicle G to 10 inches long, 

 included at l)as(>, dense and somewhat spikodike, tlic rays erect ; .«!pikelets aljout 

 2 lines long, on shorter pedicels, 5 - 15-flowered, pale straw-color : lower palet | lino 

 long, rougli on its prominent nerves, of which the middle one is excurrent as a minute 

 point. —liel. ILeidv. i. 279; Tiiurl)er in IJot. Wilkes Exped. 489. 



Jlonterey (Hacnkr) ; Tulare Valley (Hcrvmuvn) ; Kern River (Blitkc) ; Sacnimento, Pickrrinfj. 

 Does not appear to liavc been met with by any of the collectors of the State Survey. All the 

 specimens, of dillereut ages, arc pale straw color throughout. Tlie point of the lower palet is 

 present or wanting on the same specimen. 



62. STENOCHLOA, Nutt. 



Panicle narrow, somewhat spike-like. Spikelets small, 2 - 3-IIowered, all fertile, 

 readily deciduous, the lowest with a brief callus, the others slightly separated by 

 joints of the smooth rhachis. Glumes herbaceous, narrow and acute, the lower 

 l-nerved, the upi)er 3-nerved and slightly the longer, both much exceeding the 

 florets. Lower palet ovate, obtusely keeled, indistinctly 5-nerved, the outer nerves 

 marginal, herbaceo-merabranaceous, with a brief scarious tip, pubescent especially on 

 the marginal nerves and keel, minutely punctulate. Upper palet narrow, strongly 

 2-carinate, nearly equalling the other. Stamens 3 ; anthers minute. Scales 2, very 

 small, obli<iuely truncate. Ovary short-stipitate : styles very slender, loosely plu- 

 mose nearly to the base. Grain somewhat triangular ; pericarp loose : embryo 

 minute. — Low tufted annuals, with the florets somewhat like Poa and with exceed- 

 ingly long and narrow glumes. — I'lant. Gamb. 189. 



L S. Californica, Nutt. 1. c. Cubn from a few inches to a foot high and with 

 the strongly .striate sheaths smooth : leaves about 2 inches long. Hat or folded, acu- 

 minate-pointed, ciliate-scabrous on the margins ; ligule 1 line long, very thin and 

 lacerate : panicle about 2 inches U)ng, loosely spike-like, its erect rays mostly in 

 pairs, densely many-flowered to the base ; spikeh^ts barely a line and a half long, 

 very pale green : glumes spreading, with finely scabrous keels : lower palet | hue 



