An illustrated flora of the 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 102nd meridian ed2illustratedflo02brit Year: 1913 248 ROSACEAE. Vol. II. 5. PORTERANTHUS Britton, Mem. Torn Club 4: 115. 1894. [GiLLENiA Moench, Meth. Suppl. 286. 1802. Not Gillena Adans. 1/6.^.1 Erect perennial herbs, with nearly sessile stipulate 3-foliolate or 3-parted leave:, ond white or pinkish perfect long-pedicelled flowers in loose terminal panicles. Caly.
An illustrated flora of the 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 102nd meridian ed2illustratedflo02brit Year: 1913 248 ROSACEAE. Vol. II. 5. PORTERANTHUS Britton, Mem. Torn Club 4: 115. 1894. [GiLLENiA Moench, Meth. Suppl. 286. 1802. Not Gillena Adans. 1/6.^.1 Erect perennial herbs, with nearly sessile stipulate 3-foliolate or 3-parted leave:, ond white or pinkish perfect long-pedicelled flowers in loose terminal panicles. cylindric, persistent, narrowed at the throat, lo-nerved, 5-toothed, the teeth imbricated, slightly glandu- lar. Petals 5, linear-lanceolate, spreading, convolute in the bud, somewhat unequal, inserted on the calyx. Stamens 10-20, included; filaments short; anthers large. Carpels S, villous- pubescent, opposite the calyx-lobes. Ovules ascending; style filiform. Follicles 5, 2-4-seeded. Seeds with endosperm. [In honor of Thomas Conrad Porter, Professor in Lafayette College.] A genus of z species, of North America. Type species: Porteranthus trijoliatus (L.) Britton. Leaflets serrate; stipules subulate, mainly entire. i. P. trijoliatus. Leaflets incised ; stipules broad, foliaceous, incised. 2. P. stipiilalus. I. Porteranthus trifoliatus (L.) Britton. Indian Physic. Bowman's-root. False Ipecac. Fig. 2223. Spiraea trifoliata L. Sp. PI. 490. 1753. Gillciiia trifoliata Moench, Meth. Suppl. 286. 1802. P. trifoliatus Britton, Mem. Torr. Club 5 : 115. 1894. Herbaceous from a perennial root, erect, branch- ing, 2°-4° high, glabrous or somewhat pubescent. Stipules subulate. 2'-4' long, entire or serrate; leaflets short-stalked, oval, ovate, lanceolate or slightly obovate, acuminate at the , narrowed at the base, 2-3' long, irregularly serrate; upper leaves often 3-lobed, or sometimes merely serrate; panicles few-flowered; pedicels slender; petals white or pinkjsh, 5'-6' long; ca
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