GiLLENiA. ROSACEiE. 201 



2. GiLLENiA STiPULACEA, Nutt. American Ipecacuanha. 



Stipules very large, ovate, foliaceous, doubly incised ; leaflets lanceolate, deeply incised ; 

 ovaries smooth. — Nutt. gen. I. c; Ell. sk. 1. p. 562 ; Torr. fl. I. p. 564 ; DC. prodr. 2. 

 p. 546 ; Beck, hot. p. 108 ; Torr. ^ Gr. fl. N. Am. 1. p. 418. Spiraea stipulata, Willd. 

 enum. 1. p. 542. S. stipulacea, Pursh, fl.l. p. 343 ; Bart. I. c.\. t.6; Cambass. in ann. 

 set. nat. 1. p. 387. t. 28. 



Stem 2-3 feet high, branching, smooth or minutely pubescent. Leaflets about as large 

 as in the preceding species, but more cut and with coarser serratures ; those of the lower and 

 radical leaves almost pinnatifid. Stipules an inch or more in length, and of nearly the same 

 breadth. Calyx and petals nearly as in G. trifoliata, but the latter rather smaller. Ovaries 

 smooth, with 4 ovules ascending from above the base of the placenta. Ripe fruit not seen. 



In the western part of the State {David Thomas, Esq.). The late Dr. Cleaver, of Phila- 

 delphia, informed me many years ago that he had found this species in the State of New- York. 

 It is abundant west of the Allegany mountains, where it lakes the place of G. trifoliata. 

 Both species have nearly the same medicinal properties. See Wood ^ Bache, I, c. 



Tribe II. DRYADE^. Torr. 4- Gr. 



Calyx valvate or often imbricate in cestivation. Stamens sometimes definite. Carpels 

 {achenia, sometimes drupaceous) l-seeded and indehiscent, either few or solitary, or 

 numerous and collected into a head on a conical or hemispherical torus : ovules solitary, 

 rarely 2, suspended or ascending. Styles lateral or terminal. — Herbs, shrubs, or rarely 

 trees. 



CONSPECTUS OP THE SUBTRIBES. 



Subtribe I. Eudryades. Calyx campanulate or turbinate, or rather flat ; the eestivation valvate. Stamens numerous. 

 Carpels numerous, dry. Seeds erect. Style terminal. — Mostly herbs. 



Subtribe II. SANOuisORBEi;. Calyx-tube indurated and contracted at the mouth; the segments valvate. Petals often 

 wanting. Stamens few or definite. Carpels 1-2, rarely 3-4, dry : stigma often plumose. Seed sus- 

 pended. — Mostly herbs. 



Subtribe III. FsAOABiEiE. Calyx flattish, valvate. Stamens numerous. Carpels numerous, dry, crowded on a conical 

 or hemispherical (dry or fleshy) torus. — Herbs, or rarely shrubby plants. 



Subtribe rV.-DALiBAHDEa:. Calyx flattish, mostly imbricated. Stamens numerous. Carpels drupaceous, crowded on 

 the conical receptacle. Styles terminal or nearly so. — Herbaceous, or mostly somewhat shrubby and often 

 prickly plants, 



Subtribe 1. Eudryade^, Torr, & Gr. Calyx campanulate or turbinate, or rather flat, 

 valvate in cestivation. Stamens numerous. Carpels numerous, dry : style terminal. 

 Seed erect. Radicle inferior. — Herbs, or sometimes shrubby plants. Flowers perfect. 



6. GEUM. Linn. ; DC. prodr. 2. p. 550. AVENS. 



[ From the Greek, geuo, an agreeable flavor j the roots of one species being aromatie.] 



Calyx concave at the base ; the border flattish, deeply 5-cleft, usually with 5 small bracteoles 

 [Flora.] 86 



