482 ' ICOSANDRIA. DI-PENTAGYNIA. spirjea. 



Hab. In dry swamps of Canada and New-York. Pur s h. In 

 Pennsylvania. Mu hie n b e r (^. May. 



I have never seen this plant except in gardens, nor have I 

 ever received native specimens from any part of North-Ame- 

 rica. 



4. S. corymho&a R af. M. S. : leaves oblong-obovate, 

 inciselj- dentate, pubescent beneath ; corymb terminal, pe- 

 dunculate, compound, fastigiate, somewhat leafy ; flowers 

 pentagynous. S. corymbosa M u k t. Cat, p. 5 1 .'' S. chama' 

 drifolia Pursh F/. 1. p. 342? 



Suffruticose. Stem about 18 inches high, reddish, slightly pu- 

 bescent. Leaves nearly smooth above, paler beneath, incisely 

 and unequally dentate. Corymb terminal, on a naked pedun- 

 cle, compound, many-flowered, intermixed with small leaves. 

 Calyx smooth ; segments ovate, acute, reflexed. Petals white 

 or pale rose-colour, roundish-obovate. Stamens very nume- 

 rous, nearly as long again as the petals. Styles 5, straight, 

 much shorter than the stamens. 



Hab. On the Alleghany Mountains. R afi nesque. 



This species may be the S. chamxdrifolia of Pursh^ but 

 probably not of Linn xu s. The description in the books is 

 too brief to determine the question. 



5. S. crenata L. : leaves obovate, acute, toothed at the 

 summit, 3-nerved ; corymbs crowded, pedunculate. fViild, 

 S/)6c. II. p. 1068. M uhl. Cat. p, 51. 



Hae. In New-York. Muhlenberg, -f 



6. S. opulifolia L. : leaves ovate, lobed, doubly toothed 

 and crenate, smooth; corymbs terminal, with the flowers 

 crowded and trigynous ; capsules inflated. IFi 1 1 d. Spec. 

 II. p. 1059. Schmidt Arb. t. 32. M i c h. Fl. 1. p. 293. 

 PurshFl.\.\>.342. Elliott Sk.l.p, 560. Gron. 

 Virg. Y). 55. EuoNYMus virginiana, &c. Co mm. hort. I, 

 p. 169. t. 87. (teste Liyi.) 



A shrub 3 — 5 feet high, with the bark in many loobe lauiinae. 



. Leaves petiolate, roundish-ovate, about 3-lobed, oI)tuse and 

 crenate. Corymbs simple, 30 — 40-flowercd ; pedicels pubes- 

 cent, nearly an inch long. Segments of the calyx ovate, ob- 

 tuse, pubescent. Petals white, ovate. Styles 5 ; stigmas ca- 

 pitate. Cafisules large, inflated, compressed, slightly acumi- 

 nate with the persistent styles. Seeds about 2 in each capsule, 

 subovate, polished. 



Hab. On the rocky banks of rivers. New-England to Carolina. 

 June — July. Mne-bark. 



* * Herbaceous. 



7. S. Aruncus /?. americana Ph. : leaves twice or thrice 



