RypBERG: Rocky MOUNTAIN FLORA 143 
Potentilla platyloba Rydb. 
Potentilla bipinnatifida platylota Rydb. Mem. Dep. Bot. Columbia 
Univ. 2: 100. 1808. 
This is as distinct from P. dépinnatifida as most species of Po- 
tentilla are from their relatives. 
Potentilla rubripes Rydb. 
Potentilla rubricaulis Rydb. Mem. Dep. Bot. Columbia Univ. 2: 
IOI. 1898. Not P. rudricaulis Lehm. 1830. 
Lehmann’s species, for which I mistook this Rocky Mountain 
plant, is the same as P. prostrata Rottb. 
Argentina argentea Rydb. 
Argentina anscrina 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 saviie 
more deeply and more sharply toothed leaflets, and smaller flowers. 
Fragaria ovalis (Lehm.) Rydb. 
Potentilla ovalis Lehm. Ind. Sem. Hort. Bot. Hamb. 1849: 9. 
1840. 
fragaria firma Rydb. Mem. Dep. Bot. Columbia Univ. 2: 184. 
1808. 
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. 
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 
