BOTANY OF LA SAL,L,E COUNTY. 59 



for tea during- the Revolution. 



OXALIS. Sorrels. Herbs with a sour, watery juice, 

 alternate or radical leaves, usually of 3 obcor- 

 date leaflets which close up at night. 



O. violacea. Root a scaly bulb, flowers on branch- 

 ing- scapes. V. 5 to 9 in. May, Ju. and with- 

 out leaves in the fall. 



O. corniculata. Branching-, roug-h, with short, stiff 

 hairs, leaves with roundish, stipules, spreads 

 by runners, flowers Y, Ju ; R. 



0. corniculata, var. stricta. erect, hairy, very 

 branching-, M. Sept. Woods and fields. 



IMPA TIENS. Jewel Weed. Touch-me-not. 



Erect, smooth, branching- plants, with round, 

 translucent stems, small ovate, crenate, long-- 

 petioled, lig-ht G. leaves, a spurred corolla and 

 growing 1 in springy places. 



1. pallida. Flowers Y. Greener than fulva. 

 I. fulva. Flowers spotted with red. 

 Order 24. RUTACEAE. RUES. 



XANTHOX YLUM. P. Prickly Ash. A prickly 

 shrub with pinnate leaves, small yellowish 

 flowers scattered along 1 the branches; fruit 

 brownish black, peppery tasted berries. 

 X. America num. Leaves sessile in clusters, each 

 of 2 to 4 pairs of leaflets and an odd one, flowers 

 in axillary clusters. M. 8 to 10 ft. Rocky hills 

 and woods. 



PTELEA. Hop Tree. Shrubby Trefoil. Wafer Ash. 

 P. trifoliata? Leaves trifoliate, ovate, acumi- 

 nate; flowers W. small, fruit with a border; in 

 clusters and looking- like wafers. 



AILANTHUS. Glanduiosus. Tree of Heaven. 

 Leaves pinnate, of many pairs of leaflets, coarse- 

 ly branched, flowers greenish with a strong- un- 



