2£ POLYAKDEIA. POLIGY.MA. 



Stem ahemately 2-leaved, leaves palmate; flower soli- 

 tary, terminal. The fruit aiid habit is that of the htrbaoi- 

 ous species of Rubus. 



Species. 1. H. canadensis. The only species of the 

 genus. 



:587. CALTHA. L. (Marsh Marrgold.) 



Calix none. Fetrds 5 to 9- J\*cctary none* 

 Capsules several, niany-sccdcd. 



Herbaceous; leaves alternate,, reniform, cordate, or- 

 rarely sag-ittate; flowers terminal, solitary or several, 

 mostly subcorymbose and yellow, rarely white. The as- 

 pect of the genus similar to that of Ranunculus. 



Species. 1. C. parnassifulia. Radical leaves upon long 

 petioles, cordate and very obtuse, with many nerves; stem 

 1-leaveu, 1-fiowered, petals elliptic; styles 5 to 8. Hab- 

 In New Jersey. Rafinesque in New York. Med. Reposlt. 

 II. p. 361. No. 23. in the year 1808. Cfcariodes. Ph. 2. 

 p. 389. 2.pahatHs. Z.fabelUffjlia. 



Of this snriall genus there are 2 species in Europe 

 including C. palustris, 1 in Siberia, 1 in Falkland Is- 

 land, and another of doubtful genus at the Sti-aits of 

 Magellan. 



S88. COPTIS. Salisbury, (Golden-thread.) 



CalLt none. Petals 5 or 6, caducous. Le- 

 paiithia (nect-^vys) 5 or 6, cucullatc. Capsuhs 

 5 to 8, stipitate, stellatcly diverging, and ros- 

 trate, many-seeded. 



Root creeping, fibrous, yellow; leaves radical, temate, 

 sempervirent; scape 1-fiowcrec'; flowers white. 



Species. 1. C. ti-IfoUa. [Helleborus tvifuliiis .) The only 

 species of the genus indii,'enous to North America, Noitu- 

 ern Asia and Europe as far as Iceland. 



r-S9. TROLLIUS. L, (Glohe Flower.) 



Calix none. Petals 5 to 8, deciduous. Le- 

 panthia 5 to 8, linear. Capsules numerous, 

 ovate, sessile, many-seeded. 



Herbaceous; leaves digitate; branchlets about l-flow- 

 cred, flowers teriLiniil, usually globose, y.eilow. liesiem- 

 b^ing Cultha, 



I 



