12(> VUT. BOT. 



tis petiol. tennis concolor acutis Snervis- reticul. 

 levigatis margine scabris West Kentucky,very 

 distinct by many flexible bristles instead of 

 prickles, leaves very thin, well cordate, 2 or 3 

 inches long, edges very rough, t 



926, $m. (). caduca L. vel dichotoma R. 

 twigs dichotome angular with strong prickles, 

 not flat, leaves ovate acum. edge smooth, Lin. 

 says stem terete, Canada to Carol. 



927, 8m. O. platoplis Raf. 4angularis non- 

 nulis non ornnis auct. ramis angul. 4gonis,acu- 

 ieis paucis oompressis, fol. ovatis vel subcord. 

 brevi petiol. acum. cuspid. Snervis reticul. levis 

 marg. scabris, pedunc. petiolis longior 3-5fl. 

 baccis nigris globosis Pensylv. ad Kentucky 

 et Carol, easily known by the few flat prickles, 

 leaves 2 or 3 inches. 



928, Sm> O. glattca Walt. M x. sarsaparilla 

 of bot. N. Amer. but not L. which is a South 

 American Plant with hooked prickles and re- 

 tuse evergreen leaves Carol, to Kentucky 

 subangular, prickles few strait compressed, 

 leaves uncial ovatobl. glaucous beneath acute 

 mucronate trinerve peduncles longer than pe- 

 tiols, commonly 2-3flore, berries black ovate or 

 obovate. 



929, Sm.O.rotundifolia L. ram is subang.acu- 

 leis paucis rectis brcvis, fol. brevi petiol. latova- 

 tis vel subrot. cordatisque, retusis vel obt. mu- 

 cronatis, 5nervis vix reticul. subtus fulvo glaucis, 

 margine glabro, pedunc. petiolis longior multi- 

 floris umbellatis, baccis globosis cerulescens 

 Canada to Carol, near last, blended by Walter, 

 leaves larger often biuncial, Umbels of 10 to 15 

 flowers and berries. 



930, 8m. O. reniformis Raf. rotund if. nonu- 

 lis non L. ramis 4gonis flexuosis, aculeis pau- 



