. 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 i. SUMAC FAMILY. 481 I. RHUS [Tourn.] L. Sp. PI. 265. 1753. Shrubs or trees, with alternate mostly odd-pinnate leaves, no stipules, and small polyga- mous flowers in terminal panicles. Calyx 4-6-cleft or parted (commonly s-cleft), persistent. Petals equal, imbricated, spreading. Disk annular. Stamens (in our species) 5. Pistil i, sessile; ovary i-ovuled;
. 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 i. SUMAC FAMILY. 481 I. RHUS [Tourn.] L. Sp. PI. 265. 1753. Shrubs or trees, with alternate mostly odd-pinnate leaves, no stipules, and small polyga- mous flowers in terminal panicles. Calyx 4-6-cleft or parted (commonly s-cleft), persistent. Petals equal, imbricated, spreading. Disk annular. Stamens (in our species) 5. Pistil i, sessile; ovary i-ovuled; styles 3, terminal. Drupe small, i-seeded, mostly subglobose, pubes- cent; stone smooth. Seeds inverted on a stalk that rises from the base of the ovary; cotyle- dons nearly flat. [Ancient Greek and Latin name; Celtic, red.] About 125 species, natives of warm and temperate regions. Besides the following, about 6 others occur in the southern and western parts of the United States. Type species Rachis of the leaf wing-margined. Rachis of the leaf nearly terete. Foliage and twigs velvety-pubescent. Foliage and elabrous. glaucous. Rhus coriaria L. 1. R. copallina. 2. R. hirta. 3. R. glabra. I. Rhus copallina L. Dwarf Black or Mountain Sumac. Upland Sumac. Fig. 2776. Rhus copallina L. Sp. PI. 266. 1753. A shrub, or sometimes a small tree, with maxi- mum height of about 20° and trunk diameter of 6'. Leaves pinnate, 6'-i2' long, the petiole and rachis more or less pubescent; leaflets 9-21, ovate-lanceolate or oblong-lanceolate, inequilat- eral, acute or obtusish at each end, entire, or few-toothed toward the apex, dark green and glabrous above, paler and often pubescent be- neath; rachis wing-margined between the leaf- lets; flowers polygamous, green, iJ" broad, in dense terminal panicles; pedicels and calyx finely pubescent; drupe compressed, 2" in diameter, crimson, covered with short fine acid hairs. In dry soil, Maine and southern Ontario to Flor- ida, west to Mi
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
