204 ICOSANDR1A.— DI-PENTAGYNIA. 



1. S. corymbosa : leaves oblong-obovate, incisely-deh 

 tate ; pubescent beneath ; corymb terminal, pe- 

 dunculate, compound, fastigiate, somewhat leafy : 

 flowers pentag\nous. 

 HAB. Mountains. Syffrut. 18 in. high; corymb, 

 many-fl., wh. or rose-col. 

 •». S. crenata : leaves obovate, acute, toothed at the 

 summit, 3-nerved ; corymbs crowded, pedunculate. 

 HAB. New-York. -)-. 

 G. S. opulifolia: leaves ovate, lobed, doubly toothed 

 and crenate, smooth ; corymbs terminal, with the 

 flowers crowded and trigynous ; capsules inflated. 

 HAB. Rocky banks. June— July. Shrub 3—5 ft. 

 high ; corymb simp. ; fi. wh. j 



* Herbaceous. 



'k. S. aruncus. /3. americana: leaves twice or thrice 

 pinnate, shining ; spikes slender, in an oblong pani- 

 cle ; flowers trigynous, perfect. 

 HAB. Mountains. June. U. Stem 4— 6 ft. high ; 

 fi. wh. 



8. S. lobata : leaves pinnate, smooth; terminal leaflet 

 much larger and 7-lobed ; lateral leaflets 3-lobed ; 

 corymbs proliferous. 

 HAB. Pennsylvania. June. U. Leafl. subpalm. 

 lobed ; fi. rose-col., 3 — 5-gyn. 



326. GILLENIA. Rosacea. 



L G. trifoliata : leaves ternate, lanceolate, serrate r 



stipules linear, entire ; flowers in terminal loose 



panicles. 

 HAB. Rocky hills. June. lj. . Stem 2 ft. high, 



red; fi. large, wh. ; pet. elong. 

 I. G. stipulacea : radical leaves pinnatifid ; stem leaves 



ternate ; leaflets incisely-serrate ; stipules folia- 



ceous, ovate, incisely dentate ; flowers in loose 



terminal panicles. 

 HAB. Mountains. \ . Stem 2—3 ft. high, red , 



slip, very large ; fl. wh. 



