A Flora of North America: Containing Abridged Descriptions of All the Known Indigenous and Naturalized Plants Growing North of Mexico; Arranged According to the Natural System, Volume 2

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Wiley & Putnam, 1838 - Botany
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Page 19 - ... the corolla, equal in number and alternate with its lobes (or very rarely fewer) ; anthers introrse. Ovary two- (rarely three-, several-) celled, with one, or many ovules in each cell ; style single or partly divided ; stigmas distinct or concrete. Fruit capsular, drupaceous, baccate, or separated into indehiscent carpels. Seeds anatropous or amphitropous, solitary, few, or numerous in each cell. Embryo straight or slightly curved, in the axis or at the extremity of copious densely fleshy or...
Page 103 - Nees, is omitted, because it has not been found in our district, and probably is not an American plant.
Page 32 - ... exserted or included within the throat of the corolla. Stigma bifid. Berry drupaceous, containing 2 nuts, crowned with the limb of the calyx, usually marked with 10 ribs by drying, sometimes 4-angled and with 4 furrows, sometimes even. Nuts chartaceously coriaceous, ribbed, angled or even, 1-seeded.
Page 235 - Low and viscidly pubescent, much branched shrubby plants, the fastigiate leafy branches terminated by solitary or fastigiately clustered rather large heads, with entire sessile leaves and yellow flowers. Heads many-flowered, discoid or radiate; disk-flowers tubular, perfect. Bracts of the involucre few, loose, somewhat in 2 series, nearly equal, linear-lanceolate, 1-nerved; the exterior mostly with foliaceous spreading tips, commonly with 1 or more foliaceous bracts at the base resembling the upper...
Page 315 - Strlgose-scabrous, branched from the base, l to 2 feet high ; radical leaves usually undivided, spatulate-lanceolate, cauline ones pinnately parted, the upper sessile, segments linear-lanceolate or oblong, rigid, mucronulate, entire, rarely somewhat lobed ; disk columnar, longer than the 5 to 8 oblong or obovate-oval, recurved, yellow rays ; chaff with woolly tips. Disk l inch er more long.
Page 54 - ... two-cleft ; the lobes or branches (incorrectly called stigmas) various in form, mostly flattish within, often furnished with collecting hairs ; the proper stigmas occupying their inner margins, in the form of glandular, slightly prominent lines. Fruit an indehiscent, dry, one-seeded pericarp (achaenium), crowned with the limb of the calyx or pappus. Seed destitute of albumen. Radicle short ; cotyledons flat or plano-convex. Herbs, rarely shrubs or trees (forming about one tenth of phanerogamous...
Page 233 - Utah. 5. Chrysothamnus lanceolatus Nutt. 1. c. 324. Cinereous-puberulent, 2-4 dm. high; branches terete: leaves linear-lanceolate, 3-4 cm. long, mucronate, 3-nerved, with scabrous margins: heads 6-8-flowered, in clusters, forming a compound fastigiate corymb; bracts of the involucre oval, obtuse, or abruptly somewhat acute, loosely imbricated in 3-4 series, the innermost glabrous, nearly the length of the disk: lobes of the corolla about half the length of the tubular portion: branches of the style...
Page 453 - Pappus usually composed of scabrous filiform bristles in one or more series, —the inner series often smaller and somewhat connivent.
Page 166 - Heads mostly hemispherical, many flowered; the ray-flowers very numerous and usually in more than one series, pistillate; those of the disk tubular, perfect; or some of the exterior (rather transformed ray-flowers) filiformtubular and truncate, pistillate.
Page 447 - Shrubby, much-branched, woolly when young, canescent : primary leaves mostly converted into subulate spines; the others densely fascicled in their axils, thickish, linear-spatulate, obtuse, the tomentum somewhat deciduous: heads fascicled and in corymbose clusters, on very short peduncles; scales of the involucre 4-5.

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