BOTANY OF LA SAL,LE COUNTY. 79 



hairy; leaves oblong-, toothed more or less. Var. 

 O. fruiticosa. Erect, 1 to 3 ft. more or less woolly; 



leaves oblong-, toothed, capsule ribbed and 



winged. 

 O. ? A species with reclining 1 stem, hairy, oval, 



acute leaves and flowers few; 1^4 broad, occurs 



very sparingly in damp meadows. 

 GAURA. I/eaves alternate, sessile. 



G. biennis. Soft hairy, 3 to 8 ft. with spreading 



branches; leaves long-, narrow, some toothed 



flowers scattered on long-, naked branches; Pi. 



rather small, soon withering. Dry lands. 

 W. G. filipes. Nearly smooth, slender, 2 to 4 ft., 



leaves linear, toothed. 



CIRCAEAE. Enchanter's Nightshade. Leaves oppo- 

 site, thin, on slender petioles; flowers small, 



white, in long racemes. 

 C. lyutetiana. Erect, 1 to 2 ft.; leaves ovate, 



slightly toothed; fruit bristly-hairy. Woods. 

 B. C. alpina. Smooth, low, 3 to 8 in.; fruit with soft 



hairs. 



Order 45. CURCURBITACEAE. Gourds. 

 STCYOS. A. Bur Cucumber. A vine with 3 forked 



tendrils. Flowers of 2 kinds. 

 . S. angula tus. I/eaves cordate, sharply 5 angled. 



bristly-clammy-hairy. River banks. 

 ECHINOCYS TIS. A. Prickly Cucumber. Wild 



Balsam Apple. Nearly smooth; tendrils 3 forked; 



leaves thin. 

 E. lobata. Leaves deeply and sharply 5 lobed; 



fruit bristly, oval, 2 in. long; seeds brown. The 



staminate flowers of this genus and of Sicyos are 



Y, W. or W. and in large showy clusters. 

 Order 46. CACTACEAE. Cactuses. 



Plants with fleshy, often prostrate stems, 



