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 3 (Google eBook)

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C. Scribner's sons, 1913 - Botany
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Page 146 - Cal. 7. L. europaeus L. In waste places: NY to Va. Naturalized from Europe. Locally rare as a weed. 30. Mentha [Tourn.] L. Whorls of flowers in terminal spikes, or some in the upper axils. Plants glabrous or very nearly so. Spikes slim, narrow, mostly interrupted; leaves sessile, or nearly so. Spikes thick, mostly dense, at first short; leaves petioled. Leaves lanceolate or oblong, acute. Leaves ovate, obtuse, or the upper acute, subcordate. Plants villous, hirsute or canescent, at least at the nodes....
Page 169 - Calyx inferior, persistent, 4-5-toothed, -cleft, or -divided, or sometimes split on the lower side, or on both sides, the lobes or segments valvate, imbricate or distinct in the bud. Corolla gamopetalous, the limb 2-lipped, or nearly regular. Stamens 2, 4 or 5, didynamous, or nearly equal, inserted on the corolla and alternate with its lobes; anthers 2-celled; the sacs equal, or unequal, or sometimes confluent into one. Disk present or obsolete. Pistil 1, entire or 2-lobed; ovary...
Page 175 - Light canary yellow and orange, i in. long or over, irregular, borne in terminal, leafy-bracted spikes. Corolla spurred at the base, 2-lipped, the upper lip erect, 2-lobed ; the lower lip spreading, 3-lobed, its base an orange-colored palate closing the throat ; 4 stamens in pairs within ; 1 pistil. Stem: i to 3 ft.
Page 91 - Ovary 4-celled; ovule l in each cavity; style usually short, 2-lobed at the summit, one of the lobes stigmatic. Fruit dry, mostly enclosed by the calyx, at length separating into 4, 1-seeded linear or linear-oblong crustaceous smooth papillose or rugose nutlets.
Page 250 - Stamens as many as the lobes of the corolla and attached to its throat, the anthers protruding from the flower.
Page 283 - Corolla epigynous, the limb 2-5-lobed. Stamens 2-4, inserted on the tube of the corolla and alternate with its lobes; filaments distinct ; anthers versatile.
Page 341 - L. and 5. sylvaticus L. are all sometimes adventive. 51. Arnica L. i. A. acaulis (Walt.) BSP In low woods: Del. and southern Pa. Known only from near Barnsley, Chester Co., Pa., in our area. TRIBE 9. CYNAREAE Achenes inserted on the receptacle by their bases, not oblique. Receptacle densely bristly. Filaments separate. Involucral bracts hooked at the tip; leaves not bristly.
Page 97 - Corolla 2-lipped or regular; upper lip when present mostly flat, scarcely concave. Flowers in axillary whorls or clusters or these forming terminal spikes. Corolla 2-lipped. Stamens curved, often converging. Anther-bearing stamens 2.
Page 329 - Delaware counties. 9. L. Canbyi A. Gray. In swamps: NJ to S. Car. Frequent throughout the pine-barrens of New Jersey; unknown elsewhere. AMBROSIACEAE Staminate and pistillate flowers in the same heads; involucre of a few rounded bracts. I. IVA. Staminate and pistillate flowers in separate heads, the staminate mostly uppermost; involucre of the pistillate heads bur-like or nut-like. Involucral bracts of the staminate heads united. 2. AMBROSIA. Involucral bracts of the staminate heads separate; involucre...

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