. 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 2. MILKWEED FAMILY. 33 2. ASCLEPIODORA A. Gray, Proc. Am. Acad. 12: 66. 1876. Erect or decumbent perennial herbs, similar to Asclepias, with alternate or opposite entire leaves, and rather large flowers in terminal solitary or corymbed umbels. Sepals lan- ceolate. Corolla rotate, its segments spreading. Hoods oblong, inserted over the whole of the very sh
. 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 2. MILKWEED FAMILY. 33 2. ASCLEPIODORA A. Gray, Proc. Am. Acad. 12: 66. 1876. Erect or decumbent perennial herbs, similar to Asclepias, with alternate or opposite entire leaves, and rather large flowers in terminal solitary or corymbed umbels. Sepals lan- ceolate. Corolla rotate, its segments spreading. Hoods oblong, inserted over the whole of the very short corona-column, curved upward, obtuse, crested within, at least in the upper part, slightly longer than the anther; at the sinuses between the hoods a small lobe or appendage, alternate with the anther-wings, simulating an inner crown. Anthers tipped with a scarious membrane, their wings horny, narrowed below, sometimes angled above the middle. Pollen-masses pendulous* pyriform, longer than their caudicles. Follicles ovoid or oblong, acuminate, with or without soft spinose processes, erect or ascending on the decurved or twice bent fruiting pedicels. Seeds comose. [Greek, gift of Aesculapius.] Five or six species, natives of the southern United States and Mexico. Type species: Asclepio- dora viridis (Walt.) A. Gray. Glabrous or nearly so ; leaves oblong to ovate-lanceolate ; umbels corymbose. 1. A. viridis. Stem rough-puberulent; leaves lanceolate or linear, acuminate ; umbels solitary. 2. A. decumbens. i. Asclepiodora viridis (Walt.) A. Gray. Oblong-leaved Milkweed. Fig. 3407. Asclepias viridis Walt. Fl. Car. 107. 1788. Asclepiodora viridis A. Gray, Proc. Am. Acad. 12 : 66. 1876. Stem erect, puberulent above, simple, I°-2° high. Leaves oblong to ovate-lanceolate, rather thin, obtuse and mucronulate or acute at the apex, narrowed or rounded at the base, short- petioled, 2i'-5' long, i'-li' wide; umbels 2-4, or sometimes solitary; peduncles 1Y-2' long; pedicels slender, abo
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
