of growth, but under four genera one of them Oreoxys is 

 placed far out of its place and the relationship of the species 

 would not be suspected. In addition to this C. bipinnatus and 

 C. alpinus are congeneric, but placed in separate genera, and 

 ore closely related species, as will be readily seen by compar- 

 ing the fruit ; even the figures given by Coulter and Rose will 

 show it. as fig. 74 in the old monograph and fig 46 in the new 

 monograph. Again, Thaspium montanum and Cymopetrus 

 lapidosus are congeneric, though they are placed in separate 

 genera, while T. montanum and C. anisatus are kept in the 

 same genus though still less related, the latter through C. 

 bipinnatus, its structure (except the wings) and habitat being 

 congeneric with Oreoxis. On comparing the figures of Rhy- 

 sopterus and the fruit of Oreoxis alpina a remarkable similar- 

 ity will be seen, but the species are widely separate in other 

 respects ; the corrugation of the wings amounts to little, as it 

 is also common in most of the groups of Cymopterus as C. 

 terebinthinus, C. anisatus, glomeratus, globosus, etc., but had 

 they known C. globosus in its development they would hardly 

 have erected the genus Rhysopterus, unless the type species 

 which I have not seen differs most remarkably from the other 

 tw^o species whose types are in my herbarium. See remarks 

 above on Cymopterus corrugatus. It should be stated in ref- 

 erence to Cymopterus globosus that the relative width of 

 winjTs at tip and base seems greatly different, but a close study 

 of C. corrugatus and its variety show the same peculiarity to 

 a less degree. Rhysopterus Jonesii is given as having primary 

 divisions of leaves three and of corrugatus as five, but this is 

 not true of all the type specimens, though it is the prevailing 



grades. Neither of my two species show any such wings, as 

 they give R. plurijugus, though they say P. Jonesii differs 

 from it in no respect but trivial characteristics such as thick- 

 tie?? of leaves, longer peduncle, etc. Coulter and Rose have 

 Foen but very little material of P. Jonesii, while I have at least 

 twentv specimens of it. The same is true of C. corrugatus. and 

 in addition I haw it from four localities, while they have seen 

 but little of it, and that from one locality. The peculiarly cleft 

 bracts hold only in the type specimens of C. corrugatus, while 

 m other specimens both occur on the same plant,' though the 

 entire ones predominate. The type of Rhysopterus is figured 

 as having seven ribs equally prominent, but C. corrguatus has 



