70 RypBerc: Rocky MounTAIN FLORA 
Wings thickened at the insertion. 
Leaves ternately bipinnatifid; oil tubes solitary in each 
i . C. Jonesii. 
4 
nterval. : 
Leaves pinnate, with lobed or divided leaflets; oil tubes 
several in each interval. 2. C. Roses, 
Wings not thickened at the insertion. 
Flowers purplish; oil tubes 8 on the commissural side. 3. C. purpureus. 
Flowers greenish-yellow; oil tubes 4 on the commissural 
side. 4. C. Bethelt. 
1. Coriophyllus Jonesii (C. & R.) Rydb. 
Cymopterus Jonesit C. & R. Rev. N. Am. Umb. 80. 1888. 
Aulospermum Jonesii C. & R. Cont. U. S. Nat. Herb. 7: 178. 
1900. 
2. Coriophyllus Rosei (M. E. Jones) Rydb. 
Aulospermum Rosei M.E. Jones; C. & R. Cont. U.S. Nat. Herb. 
7: 179. 1900. 
3. Coriophyllus purpureus (S. Wats.) 
Cymopterus purpureus S. Wats. Am. Nat. 7: 300. 1872. 
Aulospermum purpureum C. & R. Cont. U. S. Nat. Herb. 7: 178. 
1900. 
4. Coriophyllus Betheli (Osterhout) Rydb. 
Aulospermum Betheli Osterhout, Muhlenbergia 6: 46. I9I0. ‘ 
PSEUDOCYMOPTERUs C. & R. : 
This genus is one of the most unnatural in Coulter & Rose’s 4 
Monograph. Jones* called attention to this fact, although he 
included the genus, as well as Oreoxys, Rhysopterus, Aulospermum, — 
and Pteryxia in Cymopterus, and does not go to the bottom of the 
facts. The genus as constituted by Coulter and Rose contains at 
least three distinct groups of plants of little relationship to each : 
other. The first group contains Pseudocymopterus montanus and 
its close relatives; the second of P. anisatus and P. aletifolius, and 
perhaps P. Hendersonii, which I do not know; and the third of P. 
bipinnatus and probably Cymopterus nivalis S. Wats., of which ee 
fruit is unknown. P. montanus is the type of the genus, wh 
latter therefore must be restricted to it and its relatives. Jones 
* Cont. West. Bot. 12: 24-20. 1908. os 
