140 Rvdberg : Rocky Mountain flora 



whorl ed leaf-like bracts. Sepals 2, somewhat unequal. Petals 

 3—10, oblong. Capsule oblong-conical, circumscissile. 



The genus is closely related to Claytonia, and the only dis- 

 tinctive character is the circumscissile capsule. Howell included 

 it in Oreobroma and Robinson in Leivisia ; in both genera, especi- 

 ally the latter, it is out of place on account of its habit. 



/Erocallis triphylla (S. Wats.) Rydb. 



Claytonia triphylla S. Wats. Proc. Am. Acad. 10 : 345. 1875. 



^Alsinopsis propinqua (Richardson) Rydb. 



Arenaria propinqua Richardson, Franklin Journey 738. 1823. 

 Armaria verna hirta S. Wats. Bot. King Exp. 41. 1871. Not 



A. liirta Wormskj. 

 Arenaria verna (d)equicaulis A, Nels. Bull. Torrey Club 26: 352. 



1899. 



^Alsinopsis Rossii (Richardson) Rydb. 



Arenaria Rossii Richardson, Franklin Journey 738. 1823 



• Alsinopsis quadrivalvis (R. Br.) Rydb. 



Arenaria quadrivalvis R. Br. in Parry 1st Voy. app. cclxxi 



1824. 



^Alsinopsis obtusiloba Rydb. 



Arenaria obtusa Torr. Ann. Lye. N. Y. 2: 170. 1827. Not 



usa All. 1785. 



bifiora S. Wats. 



bifli 



L. 1767. 



Arenaria sajanensis Robinson, Proc. Am. Acad. 29: 304. 1894. 

 Not A. sajanensis Willd. 18 16. 



^Delphinium reticulatum (A. Nels.) Rydb. 



Delphinium Occident ale reticulatum A. Nels. Bull. Torrey Club 27 : 

 261. 1900. 



ODOSTEMON Raf. Am. Monthly Mag. 2: 265. F 1818. 



Mahonia Nutt. Gen. Am. 1: 211. 18 18. 



Both Odostevwn Raf. and Mahonia Nutt. were published in the 

 same year, but the former a few months earlier. The Rocky 

 Mountain species are : 



