Rydberg : Rocky Mountain flora ]4:5 



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Potentilla platyloba Rydb. 



bipinnatifida platyloba Rydb. M 



Univ. 2 : ioo. 1898. 



•tifi 



tentilla are from their relatives. 



Potentilla rubripes Rydb. 



Potentilla rubricaulis Rydb. Mem. Dep. Bot. Columbia Univ. 2: 

 ■ 101. 1898. Not P. rubricaulis Lehm. 1830. 

 Lehmann's species, for which I mistook this Rocky Mountain 

 plant, is the same as P. prostrata Rottb. 



J Argentina argentea Rydb. 



Argentina anserina concolor Rydb. Mem. Dep. Bot. Columbia 

 Univ. 2 : 160. 1898. Not Potentilla anserina concolor Ser. 

 1825. 



The European plant to which this was referred differs in having 

 more deeply and more sharply toothed leaflets, and smaller flowers. 



*Fragaria ovalis (Lehm.) Rydb. 



Potentilla ovalis Lehm. Ind. Sem. Hort. Bot. Hamb. 1849 : 9- 



1849. 

 Fragaria firma Rydb. Mem. Dep. Bot. Columbia Univ. 2 : 184. 



1898. 



Dr. Wolf, of Dresden, Germany, has called my attention to 

 the fact that P. ovalis Lehm. is no Potentilla at all. Prof. Leh- 



* 



mann did not cite any type, but his herbarium shows that it was 

 Fendler 206, which I included in Fragaria firma. 



v Fallugia acuminata (Wooton) Rydb. 



Fallugia paradoxa acuminata Wooton, Bull. Torrey Club 25 : 306 



1898. 



• Prunus melanocarpa (A. Nelson) Rydb. 



Cerasus demissa melanocarpa A. Nels. Bot. Gaz. 34: 25. 1902. 

 The common Rocky Mountain tree is well distinct from the 

 original Cerasus demissa Nutt. or Prunus demissa Walp. The lat- 

 ter, which was from the Columbia Valley, has thin, very pubescent 



