A text-book of grasses with especial reference to the economic species of the United States . forage, but on account of the excessof mineral constituents itis of inferior quality. 250. Dactylis L.—Thesingle species, D. glome-rata, a native of Europe,is commonly cultivatedas a forage grass underthe name of orchard-grass. It is a tussock-forming perennial, 2 to 4feet high, with flat bladesand narrow panicles. Thespikelets are in 1-sidedfascicles or small headsat the ends of the fewprincipal branches of thepanicle. These branchesspread at the time offlowering but close atmaturity. The lemmasare f
A text-book of grasses with especial reference to the economic species of the United States . forage, but on account of the excessof mineral constituents itis of inferior quality. 250. Dactylis L.—Thesingle species, D. glome-rata, a native of Europe,is commonly cultivatedas a forage grass underthe name of orchard-grass. It is a tussock-forming perennial, 2 to 4feet high, with flat bladesand narrow panicles. Thespikelets are in 1-sidedfascicles or small headsat the ends of the fewprincipal branches of thepanicle. These branchesspread at the time offlowering but close atmaturity. The lemmasare fringed or ciliate onthe sharp keel. Dactylis glomerata L. () Orchard-grass. Perennial,in large tufts without creeping rootstocks; culms erect, smooth, 2 to4 feet high; sheaths compressed and keeled, more or less retrorselyscabrous, closed for a portion of their length, sometimes nearly tothe throat; hgule prominent, thin and papery, pointed, usually lace-rate, the uppermost as much as H inch long; blades flat, usuallyscabrous on both surfaces, elongated, as much as 3^ inch wide,. Fig. 52. Distichlis spicata. Staniinateplant (at left) and pistillate plant (atright) reduced; pistillate and staminatespikelets. FESTUCE^ 227 tapering into a slender point;panicle 3 to 6 inches long, thebranches few and stiff, singly dis-posed, naked below, bearing a few1-sided clusters of spikelets, theclusters being about 3^ inch wide,green or purplish; spikelets com-pressed, about M inch long usu-ally 3- or 4-flowered; first glume1-nerved, acute; second glumelonger than the first, 3-nerved,acuminate, ciliate on the keel; lem-mas rather indistinctly 5-nerved,ciliate on the keel, the flowering period thebranches are spread open by theturgidity of prominent cushions oftissue in the basal angle. Laterthese cushions shrink and thebranches become appressed so thatin fruit the panicle is narrow andalmost spike-like. The tufts oforchard-grass soon develop at thebase into large t
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Keywords: ., bookauthorhi, bookcentury1900, bookdecade1910, booksubjectgrasses
