IOWA ACADEMY OP SCIENCES. 
215 
CAPPARIDACE^. 
Cleome. 
314. C . spinosa L. Waste ground; rarely escaped. 
POLANISIA. 
315. P. trachyspermum T. & G. Waste ground; scarce. 
CRASSULACE^. 
Sedum. 
316. S. telephium L. Rarely escaped. 
Penthorum . 
317. P. sedoides L. Abundant in wet ground along 
streams. 
SAXIFRAGACE.ZE. 
Saxifraga. 
318. S ^ pennsylvanica L. Wet meadows; scarce. 
Heuchera. 
319. H. hispida Dry, stony ground; common . 
Mitella. 
320. M. diphylla M. Wooded ravines and shady 
banks; frequent. 
Parnassia. 
321. P. carcliniana Michx. Wet meadows and along 
streams; scarce. 
Ribes. 
322. 
323. 
324. 
GROSSULARIACE^. 
P. cynoshati L. Mostly on rocky banks;* 
common. 
P. gracile Michx. Open woods; common, 
R • Jioriduin U Her . Low ground along streams; 
common . 
ROSACEA. 
Opulaster. 
325. 0. opulifolius (L.) Kuntze. (Physocarpus opulU 
folius Michx.) Rocky banks of streams; 
frequent. 
