File:A class-book of botany, designed for colleges, academies, and other seminaries Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the (20655109715).jpg

Title: A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4
Identifier: classbookbotan00wood (find matches)
Year: 1848 (1840s)
Authors: Wood, Alphonso, 1810-1881
Subjects: Botany; Plants -- United States; Plants -- Canada
Publisher: Claremont, N. H. , Manufacturing Co. , S. Ide, agent
Contributing Library: New York Botanical Garden, LuEsther T. Mertz Library
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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Aristida. CLXI. GRAMINE^. 595
Text Appearing After Image:
Tribe 1. STIPACEJE.—Infloresence panicled. Spikelets solitary, 1-flower- ed. Glumes membranaceous. Paleaa mostly two, lower one coriaceous, involute, awned. 1. ARISTlDA. Lat. arista, an awn; characteristic of the genus. Panicle contracted or racemose; glumes 2, unequal; paleas pedi- cellate, lower one with 3 long awns at the tip, upper one very minute or obsolete. 1. A. DiciiOTOMA. Michx. Poverty Grass. Csespitose; 5^. dichotomously branching; panicle contracted-racemose; lateral awns very short, the intermediate one nearly as long as the paleae, con- torted.—A slender grass, in sandy soils, U. S., common. Stems 8—12' high, branching at each joint. Leaves very narrow, with very short, open sheaths, and a very short stipule. Spikelets slender, on clavate peduncles, Aug. 2. A. PURPURASCENS. Poir. St. erect, simple, filiCorm, 2—3f high; Ivs. very narrow, flat, erect, a foot in length, with short, open sheaths; fanicle long, loosely spicate; spikelets on short, clavate, appressed pedicels; awns nearly equal, divaricate, twice ihe length of the palece; pakce often dark purple.—I). Sandy woods, Northern States. Sept. 3. A. GRACILIS. Ell. St. very slender, a foot or more high; Ivs. setaceous, erect, with short sheaths, pilose at the throat; panicle very slender; spikelets somewhat remote, ap- pressed; lateral aiais short, erect, intermediate one longer, spreading. —% Mas.**. and S. States. A grass of little value, as well as the other species ot this genus. 4. A. TLBERCULosA. Nutt. Loni^-ainird Pavcrty Grass. St. erect (declinatc at ba.se), 8—20' high, rigid, with small tubercles in the axils of the numerous branches; mxhs tumid; Irs. long and narrow-linear; panicle large, loose, simple; spikelets pedicellate; glumes nearly 1' long, linear, awned ; vpper pa/rct involute, the awns 2' long, hispid upwards, twisted together to near the middle, thence finally horizontally divaricate.—94- A very smgular species, in dry prairies, III., Mta.fl! July, Aug.

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