. 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. Botany; Botany. Genus 3. BUCKWHEAT FAMILY. 653 3. RUMEX L. Sp. PI. 333. 1753. _ Perennial or annual, leafy-stemmed herbs, some species slightly woody, the leaves in some mainly basal. Stem grooved, mostly branched, erect, spreading or creeping. Leaves entire or undulate, flat or crisped, the ocreae usually cylindric, brittle and fugacious, the inflo- rescence consisting of sim
. 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. Botany; Botany. Genus 3. BUCKWHEAT FAMILY. 653 3. RUMEX L. Sp. PI. 333. 1753. _ Perennial or annual, leafy-stemmed herbs, some species slightly woody, the leaves in some mainly basal. Stem grooved, mostly branched, erect, spreading or creeping. Leaves entire or undulate, flat or crisped, the ocreae usually cylindric, brittle and fugacious, the inflo- rescence consisting of simple or compound, often panicled racemes. Flowers green, perfect, dioecious, or polygamo-monoecious, whorled, on jointed pedicels. Corolla none. Calyx 6-parted, the 3 outer sepals unchanged in fruit, the 3 inner ones mostly developed into wings, one or all three of which usually bears a callosity (tubercle) ; wings entire, dentate, or fringed with bristle-like teeth. Stamens 6, included or exserted; filaments very short, glabrous. Style 3-parted; stigmas peltate, tufted; achene 3-angled, the angles more or less margined. Embryo curved or nearly straight, borne in one of the faces of the 3-angled seed. [The ancient Latin name.] About 140 species, of wide geographic distribution. Besides the following, some 15 others occur in the southern and western parts of North America. Type species: Rumex Patientia L. * Leaves hastate; flowers dioecious; foliage acid; low species. Inner sepals not developing wings in fruit; achene granular. 1. Fruiting inner sepals developing wings; achene smooth. Basal leaves numerous ; wings orbicular-cordate. 2. R. hastatulus. Basal leaves few ; wings broadly oblong-cordate. 3. R. Acetosa. ** Leaves not hastate; flowers perfect or polygamo-dioecious; foliage scarcely or not at all acid; tall species. Leaves flat, bright or light green, or glaucescent. Wings Yi'—\Yz broad, reddish; no tubercles. 4. Wings small, not red, bearing tu
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
