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, Volume 1
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2-toothed 3-angled 3-cleft 3-nerved achene acuminate aments anthers apex appressed Aug.-Sept basal base beak bracts branches bristles brown calyx capsule Carex clustered culm culms slender Cyperus densely diameter dioecious elongated empty scales Europe filaments filiform flat Florida and Texas flowering scales fruit glabrous Gray green inflorescence internodes involucre July-Sept June-Aug keel lanceolate leaves length less ligule linear lobes longer margins Michx monoecious Muhl narrow narrowly nearly nerves North oblong obovate obovoid obtuse Ontario outer scales oval ovary ovoid palet panicle Panicum pedicels peduncles Perennial perianth perigynia petioles pistillate pistillate spikes Potamogeton pubescent racemes rachis rootstocks rough scabrous scales acute scales ovate scape Scirpus Sedge sepals sessile Sheaths shorter short simple slightly smooth and glabrous soil solitary sometimes south to Florida species spikelets spreading stamens staminate spike stem stigmas stout style subulate tall terete terminal thick third scale Torr tufted umbel upper usually wide
Page viii - Similar Generic Names. — Similar generic names are not to be rejected on account of slight differences, except in the spelling of the same word; for example Apios and Apium are to be retained, but of Epidendrum and Epidendron, Asterocarpus and Astrocarpus, the later is to be rejected.
Page vii - Publication of a genus consists only (1) in the distribution of a printed description of the genus named ; (2) in the publication of the name of the genus, and the citation of one or more previously published species as examples or types of the genus, with or without
Page 220 - ... wide, softly pubescent : panicle 5—15 cm. in length, open, the branches slender and drooping, somewhat one-sided : spikelets numerous, 5-8-flowered, on capillary recurved slender pedicels: glumes acuminate, usually rough or hirsute, the first 1-nerved, the second longer^ 3-nerved; lemma 8-12 mm. long, acuminate, 7-nerved, usually rough or hirsute; awn 1.2-1.6 cm. long. — A weed naturalized from Europe; rare in our range. 2. Bromus secalinus L.
Page 261 - S. Smithii. Culms sharply 3-angled; plants perennial by rootstocks. Achene plano-convex; bristles shorter than or equalling the achene. Spikelets acute, much overtopped by the slender involucral leaf; scales awned. 10. .S. Americanus. Spikelets obtuse; involucral leaf short, stout; scales mucronulate. 11. S. Olneyi. Achene 3-angled, ridged on the back. Bristles longer than the achene; involucral leaf erect.
Page 383 - Stems erect, i°-2^° high, about i" thick, arising at intervals from a creeping proliferous rootstock about I }&" in diameter; basal leaves reduced to bladeless clasping sheaths; panicle commonly j"-i$" high, spreading, its subtending leaf usually 4/-io' long; perianth \" in length or a little less, its parts with a green midrib, equal, lanceolate, the outer acute, the inner obtuse; stamens 6, nearly as long as the perianth, the anthers shorter than the filaments; capsule almost twice as long as...
Page iii - The scope and nature of the work cannot be better stated in brief than by quoting the opening paragraph of the authors' introduction : " The present work is the first complete Illustrated Flora published in this country. Its aim is to illustrate and describe every species, from the Ferns upward, recognized as distinct by botanists and growing wild within the area adopted, and to complete the work within such moderate limits of size and cost as shall make it accessible to the public generally, so...
Page 75 - Leaves setaceous, attenuate to the apex, i-nerved, l'-6' long, often capillar3r and nerveless; stipules half free, ^'-i' long, their sheaths scarious on the margins ; peduncles filiform, 2'-i2' long, the flowers in verticils ; fruit obliquely obovoid, with a hard thick shell. iyi"-2" long, i"-i%" wide, without a middle keel, but with obscure lateral ridges on the back, plump on the sides and curved or occasionally a little angled on the face ; style straight or recurved, facial ; embryo apex pointing...
Page 210 - Panicle not elongated, open, its branches spreading or drooping, rarely erect. Scales about 2 mm. long, obtuse or rounded at the apex. Spikelets 3 mm. long or less ; branches of the panicle often drooping. 5. P. nervata.
Page 234 - Culms in our species simple, triangular, leafy near the base, and with 1 or more leaves at the summit forming an involucre to the simple or compound, umbellate or capitate inflorescence. Rays of the umbel sheathed at the base, usually very unequal, one or more of the heads or spikes commonly sessile. Spikelets flat or subterete.