— 201 — 



The examined North American and Eurasian genera can be clas- 

 sified among these groups as fallows: 



North American genera. — The denominations are arran- 

 ged according to the works of Coulter and R о s e ^ 



A. 



M usine on, Raf. Erige ni a, Nutt. Orogenia, Wats. He- 

 s p e r g e n i a, C. et R. D e w e y a, Tor. et Gr. Drudeophy- 

 tura, С et R. Museniopsis, С. et R. Tauschi a, Schlecht. 

 Су clos p er mum, Lag. Harbouria, С. et R. A le te s, C. 

 et R. Leibergia, Cet R. Tae nidia, Drude. Oreoxis, Ruf. 

 Thaspium, Nutt. Phellopterus, Nutt. P ter y xi a, Nutt. 

 Aulospermum, C. et R. С y mop ter us, Rat. Ryssoscia- 

 d i u m, OK. P s e u d с y m p t e r u s, С et R. N e u r о p h y 1 1 u m, 

 T. et G. Leptotaenia, Nutt. Cogswellia, Spreng. Pseudo- 

 tae nidia, Mackensie. Plejotaenia, С et R. Euryptera, 

 Nutt. D onnelsmithia, С et R. Prionosciadium, Wats. 

 N eoneis onia, С. et R. 



B. 



В u p 1 e u r u m, L. С i с u t a, L. P о d i s t e r a, Wats. Drepano- 

 phyllum, Wib. ^. Eurytaenia, Tor. et Gray. Coelopleu- 

 rum, Ledb. Angelica, L., Glehnia, F. Schm. Cynoma- 

 r at h rum, Nutt. 



С 



„Caucalis, L." auct. fl. amer. ^. Neogoecia, Hemsl. 



1 Contributions from the Unit. St. Nation. Herbarium. VII 2 XII 2, 10.— Pro- 

 cedings of the Washington Academy of Sciences. 12. — Procedings of the 

 Washingt. Biolog. Society. XIX. — etc. 



^Drepanophyllum m. = Sium sect. Eus i urn Fisch., Meyet 

 Lallem.; Sium m. = BeruIa Koch non H о ff m. — See my article 

 Acta Horti Botan. Univers. Juriew. XIV 140, Bullet, de la Soc. Imper. des 

 Natural, de Moscou 1914, 171, 181. 



3 I doubt that the natives North American species, which are refered to 

 Apium, Carum, Caucalis and many other Eurasian genera, refer to 

 them in fact. For example the Caucalis microcarpa. Hook, et Ar- 

 nottehas nothing common with the E u r a s i a n Caucalides, Cauca 

 lis, L. sensu Rchbch fil. Icônes germ. XXI. tab. MMXI, С a 1 e s t a n i, 1. с 

 256. Compare Coulter and Rose, Monograph fig. 8 and Koch Nova Acta 

 Acad. Nat. Curios. Leopold. XII. tab. IX, fig. 11. 



