. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 214 GRAMINEAE. Vol. I. 49. NOTHOHOLCUS Nash. [Holcus L. Sp. PL 1047, in part. 1753.] Annual or perennial grasses with flat leaf-blades and spike-like or open panicles. Spike- lets deciduous, 2-flowered; lower flower perfect, upper staminate. Scales 4; the 2 lower empty, membranous, keeled, the first i-nerved, the second 3-nerved and often short-awned; flowering
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 214 GRAMINEAE. Vol. I. 49. NOTHOHOLCUS Nash. [Holcus L. Sp. PL 1047, in part. 1753.] Annual or perennial grasses with flat leaf-blades and spike-like or open panicles. Spike- lets deciduous, 2-flowered; lower flower perfect, upper staminate. Scales 4; the 2 lower empty, membranous, keeled, the first i-nerved, the second 3-nerved and often short-awned; flowering scales chartaceous, that of the upper flower bearing a bent awn. Palet narrow, 2-keeled. Stamens 3. Styles distinct. Stigmas plumose. Grain oblong, free, enclosed in the scale. [Greek, alluding to the reference of these grasses to the genus Holcus.] About 8 species, natives of the Old World. Type species: Holcus lanatus L. i. Nothoholcus lanatus(L.) Nash. Velvet-grass. Meadow or Woolly Soft-grass. Fig. 517. Holcus lanatus L. Sp. PI. 1048. 1753. Softly and densely pubescent, light green, culms li°-3° tall, erect, often decumbent at the base, simple. Sheaths shorter than the internodes; ligule 4"-i" long; blades i'-6' long, 2"-6" wide; spikelets 2" long, the empty scales white-villous, the upper awn-pointed; flowering scales 1" long, smooth, glabrous and shining, the lower sparsely ciliate on the keel, somewhat obtuse, the upper 2-toothed and bearing a hooked awn just below the apex. In fields, meadows and waste places, Nova Scotia to Ontario and Illinois, North Carolina and Tennessee. Also on the Pacific Coast. Naturalized from Europe. Velvet Mesquite. Old White-top. Salem-, Rot-, Dart- or Feather-grass. Whites. Yorkshire-fog. White-timothy, Calf-kill. June-Aug. 50. ASPRIS Adans. Fam. 2: 496. 1763. [Aira L. Sp. PI. 63, in part. 1753.] Mostly annual grasses with narrow leaf-blades and contracted or open panicles. Spikelets small, 2-flowered, both
Size: 1387px × 1801px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913