140 RvDBERG : Rocky Mountain flora 



whorled leaf-like bracts. Sepals 2, somewhat unequal. Petals 

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



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

 tinctive character is the circumscissile capsule. Howell included 

 it in Orcobroma and Robinson in Lcivisia ; in both genera, especi- 

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



Erocallis triphylla (S. Wats.) Rydb. 

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



Alsinopsis propinqua (Richardson) Rydb. 

 Aroiaria propinqua Richardson, Franklin Journey 738. 1823. 

 Arcnaria vcrna Jiirta S. Wats. Bot. King Exp. 41. 1 87 1. Not 



A . Jiirta Worms k j . 

 Areiiariavenia [a)cq2iicaitlis A. Nels. Bull. Torrey Club 26: 352. 

 1899. 



Alsinopsis Rossii (Richardson) Rydb. 

 Arcnaria Rossii Richardson, P^ranklin Journey 738. 1823. 



Alsinopsis quadrivalvis (R. Br.) Rydb. 

 Arcnaria quadrivalvis R. Br. in Parry ist Voy. app. cclxxi. 



1824. 



Alsinopsis obtusiloba Rydb. 

 Aroiaria obtnsa Torr. Ann. Lye. N. Y. 2: 170. 1827. Not 



A. obtnsa All. 1785. 

 Arcnaria biflora S. Wats. Bibl. Index 94. 1878. Not .-J. bifiora 



L. 1767. 

 Arcnaria sajancnsis Robinson, Proc. Am. Acad. 29: 304. 1894. 



^o\. A. sajancnsis^xWd. 18 16. 



Delphinium reticulatum (A. Nels.) Rydb. 

 DclpJiininui occidcntalc rcticnlatinn A. Nels. Bull. Torrey Club 27 : 

 261. 1900. 



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

 MaJionia Nutt. Gen. Am. i: 211. 18 18. 



Both Odostenwn Raf. and Malionia Nutt. were published in the 

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

 Mountain species are : 



