. 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. ASCLEPIADACEAE. Vol. III. 4. Asclepias rubra L. Red Milkweed. Fig. 3386. Asclepias rubra L. Sp. PI. 217. 1753. Nearly glabrous throughout; stem usually sim- ple, i°-4° high. Leaves opposite, rather distant, short-petioled, ovate, lanceolate or the lower some- times oblong, rounded or subcordate at the base, gradually acuminate, rather firm, 3'-8' long, i'-2i' w
. 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. ASCLEPIADACEAE. Vol. III. 4. Asclepias rubra L. Red Milkweed. Fig. 3386. Asclepias rubra L. Sp. PI. 217. 1753. Nearly glabrous throughout; stem usually sim- ple, i°-4° high. Leaves opposite, rather distant, short-petioled, ovate, lanceolate or the lower some- times oblong, rounded or subcordate at the base, gradually acuminate, rather firm, 3'-8' long, i'-2i' wide, the primary nerves wide-spreading; umbels 1-4, many-flowered; peduncles shorter than or equalling the upper leaves; pedicels slender, downy, 4'-i' long; corolla-segments and hoods lanceolate- oblong, purplish red, or the hoods orange-red, 3"-4" long, or flowers sometimes greenish; horns of the hoods very slender, nearly straight; fruiting pedicels deflexed, the follicles erect, spindle-shaped, glabrous, about 4' long. In moist soil, New Jersey and Pennsylvania to Flor- ida, Missouri, Louisiana and Texas. June-July. 5. Asclepias purpurascens L. Purple Milkweed. Fig. 3387. Asclepias purpurascens L. Sp. PI. 214. 1753. ?Asclepias amoena L. Sp. PI. 214. 1753. Stem stout, puberulent or glabrous, usually sim- ple, 2°-4° high, leafy to the top. Leaves ovate, elliptic or oblong, short-petioled, acute or obtuse and mucronulate at the apex, narrowed or round- ed at the base, nearly glabrous above, finely tomentose beneath, 3'-8' long, ii'-jj' wide, the primary nerves very wide-spreading; umbels many-flowered, borne in several of the upper axils, or sometimes solitary; peduncles stout ; pedicels slender, puberulent, I'-ii long; corolla deep purple, its segments oblong to oblong-lan- ceolate, about 3" long; column very short and thick; hoods oblong or ovate, nearly twice as long as'the anthers, pale red or purple, the horns broad at the insertion, short-subulate and
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
