. 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. y solitary). ( Spikelets in one row. . Cynodon. 47 < remote, short, forming a long, slender raceme. . Atheropogon. 50 .Spikes unilateral, (conglomerate or paniculate Dactyhs. 45 FIG 56—1 Agrostis alba; a l-flowered spikelet; a, the two glumes. 2. Aflower, with the twopalese,three stamens and two plumose stigmas. 3. Leersia oryzoides; a flower removed from its
. 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. y solitary). ( Spikelets in one row. . Cynodon. 47 < remote, short, forming a long, slender raceme. . Atheropogon. 50 .Spikes unilateral, (conglomerate or paniculate Dactyhs. 45 FIG 56—1 Agrostis alba; a l-flowered spikelet; a, the two glumes. 2. Aflower, with the twopalese,three stamens and two plumose stigmas. 3. Leersia oryzoides; a flower removed from its 2 hypoirynous scales, three stamens and ovarj- with the two stignias. 4. Phleum pra ense ;a 1 flowe ed spikelet; a. glumes ; b. truncate palea;; &c. 5. Polypoeon ; a l-flowered ; glumesand lower palea awned. 6. Holcus lanatus; a two-flowered spikelet; a, glumes; 6, the two flowers (upper staminate). 7. Poa pratensis; a 4-flowered spikelet; a, the two glumes ; b, a single flower withtwopdes & 8 Festuca duriuscula: a 5-flowered spikelet: a, two glumes; 6, a single flower. 9. Thecaryopsis ofHordeum, showing the embryo at the base of the copious albumen. AUISTIDA. CLXI. GRAMlNEiE. 8 8 595. Tribe 1. STIPACEJE.—Infloresence panicled. Spikelets solitary, l-flcnvcr-ed. Glumes membranaceous. Paleae mostly two, lower one coriaceous,involute, awned. 1. ARISTlDA. Lat. arista, an awn; characteristic of the genus. Panicle contracted or racemose; glumes 2, unequal; paleae pedi-cellate, lower one with 3 long awns at the tip, upper one very minuteor obsolete. 1. A. DicHOTOMA. Michx. Povcrfy Grass. Coespitose; st. dichotomously branching; panich 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. PURPURASCEN
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectbotany, bookyear1848
