150 ROSACES. (ROSE FAMILY.) 



on a long naked peduncle. Meadows and Prairies, Penn. to Michigan, Illi- 

 nois, and Kentucky. June. Flowers deep peach-blossom color, handsome, 

 the petals and sepals often in fours ! . The bruised foliage exhales the odor of 

 Sweet Birch. 



4. ARtlNCUS, Seringe. Perennial herbs, with dioecious whitish flowers,- in 

 many slender spikes disposed in a long compound panicle: leaves thrice-pinnate: 

 stipules obsolete: pods 3-5, several-seeded: pedicels reflexed in fruit. 

 6. S. Aruncus, L. (GOAT'S-BEARD.) Smooth, tall ; leaflets thin, lance- 

 olate-oblong, or the terminal ones ovate-lanceolate, taper-pointed, sharply cut 

 and serrate. Rich woods, Catskill and Alleghany Mountains and westward. 

 Near Baltimore, P. V. Leroy. June. (Eu.) 



3. GILLENIAi Moench. INDIAN PHYSIC. 



Calyx narrow, somewhat constricted at the throat, 5-toothed; teeth erect. 

 Petals 5, rather unequal, linear-lanceolate, inserted in the throat of the calyx ; 

 convolute in the bud. Stamens 10-20, included. Pods 5, included, at first 

 lightly cohering with each other, 2-4-seeded. Seeds ascending, with a close 

 coriaceous coat, and some albumen. Perennial herbs, with almost sessile 3-fo- 

 liolate leaves; the thin leaflets doubly serrate and incised. Flowers loosely 

 paniculate-corymbed, pale rose-color or white. (Dedicated to an obscure Ger- 

 man botanist or physician, A. Gille, or Gillenius.) 



1. G. trifoliata, Moench. (BOWMAN'S ROOT.) Leaflets ovate-oblong, 

 pointed, cut-serrate ; stipules small, awl-shaped, entire. Rich woods, from W. 

 New York southward, and sparingly in the Western States. July. 



2. G. Stipulacea, Nutt. (AMERICAN IPECAC,) Leaflets lanceolate, 

 deeply incised ; stipules large and leaf-like, doubly incised. From W. Penn- 

 sylvania and New York to Illinois and Kentucky. June. 



4. POTERIUM, L. (including SANGUISORBA.) BURNET. 



Calyx with a top-shaped tube, constricted at the throat, persistent ; the 4 

 broad petal-like spreading lobes imbricated in the bud, deciduous. Petals none. 

 Stamens 4-12 or more, with flaccid filaments and short anthers. Pistils 1 -3 : 

 the slender terminal style tipped with a tufted or brush-like stigma. Achenium 

 (commonly solitary) enclosed in the 4-angled dry and thickish closed calyx- 

 tube. Seed suspended. Chiefly perennial herbs, with unequally pinnate 

 leaves, stipules coherent with the petiole, and small, often polygamous or di- 

 oecious flowers crowded in a dense head or spike at the summit of a long and 

 naked peduncle, each bracteate and 2-bracteolate. (Name Trorrjptov, a drinking- 

 cup, the foliage of Burnet having been used in the preparation of some medici- 

 nal drink.) 



1. P. Canad6nse. (CANADIAN BURNET.) Stamens 4, long-exserted, 

 club-shaped, white, as is the whole of the elongated and cylindrical spike ; stem 

 3 - 6 high, leaflets numerous, ovate or oblong-lanceolate, coarsely serrate, ob- 

 tuse, heart-shaped at the base, as if stipellate ; stipules serrate. ( Sanguisorba 

 Canadensis, L., and former edition.) Bogs and wet meadows; chiefly north- 

 ward. Aug. - Oct. 



