XETRADYNAM1A. SILIQUOSA. ArablS. 489. 



818. ARABIS. Glands nectar-bearing four, each 

 within the leaflets of the calyx, like a 

 reflected Scale, 



alpha. 1. A. leaves ftem-clafpingtooth'd. alpine, 



grandifiora. 2. A. flem naked. great-flozver'cL 



thaliana. 3. A. leaves petioled lanced mofl intire. thatia. 



bellidifolia. 9. A. leaves rather tooth'd : radical leaves inverfe-egg'd ; 



flem -leaves lanced. daify-leaved. 



lyraia. 4. A. leaves fmooth : radical leaves lyredj ftem-leaves 



linear. lyred. 



hifpida. A. leaves hifpid : radical leaves fublyred ; ftem-leaves 



lanced. hi/put. 



Halleri. 5. A. ftem-leaves fublyred : branch-leaves lanced gafh'd. 



of Haikr . 

 canadenfis. 6. A. ftem-leaves lanced tooth'd fmooth, flowers pendu- 

 lous. Canadian, 

 pendula. 7. A. leaves ftem-clafping, fili^ties two-edged linear, 



calyxes rather hairy. pendulous. 



Turrita. 8. A. leaves ftem-clafping, filiques decurved flat linear, 



calyxes rather wrinkled. Tower, 



hifpida. A. leaves hifpid : radical leaves runcinate, ftem-leaves 



lanced. S. hifpid. 



lucida. A. leaves ftem-clafping lucid, S. lucid. 



819. TURRITIS. Silique moillong, angled 1 . Cat. 

 converging, erect. Cor. erett. "Tower. 



glabra. 1. T. radical leaves tooth'd hifpid: ftem-leaves mod 



intire ftem-clafping fmooth. fmooth. 



hirfuta. 2. T. leaves all hifpid, ftem-leaves ftem-clafping. Jhaggy. 



alpina. 3, T. radical leaves tooth'd hifpid, ftem-leaves half- 



ftem-claiping. alpine. 



820. BRA 



