mostly acute leaflets, seldom less than an inch long; peduncles 

 not noticeably swollen at tip: rays elongated and unequal; 

 pedicels not as long as the fruit; ribs conspicuous, deltoid in 

 cross section or sometimes winged ; lateral wnngs thin but 

 Ijlunt edged, mostly nearly as broad as the body; commissural 

 ridge evident; fruit narrowly to broadly oblong; seeds much 

 llattened; generally tall plants and caulescent, and flowers 

 mostly yellow. This includes C. Cusickii (Watson Proc. Am. 

 Acad. 21 453 (1886) as Peucedanum). C. laevigata ( N'utt. T. & 

 G. Fl. 1 627 (1840) as Peucedanum), a doubtful species; 

 C. brevifolia (C. & R. Rev. Umb. 70 (1888) as Peucedanum 

 triternatum van), C. tritemata (Pursh Fl. 1 197 (1814) as 

 Seseli), which includes the var. alata, which is onlv a form; 

 C. tritemata var. robustior (C. & R. Cont. Xat'. Herb. 3 

 228 (1895) as Peucedanum). C. anomala (Jones C. & 

 R. Umb. 237 (1900) as Lomatium), C. platycarpa (Torr. 

 Stansby. Rep. 389 (1852) as Peucedanum triternatum var.), 

 C. Suksdorfii (Watson Proc. Am. Acad. 20 369 (1885) as Peu- 

 cedanum). C. gigantea (C. & R. Umb. 240 (1900) as Lomn- 

 tumi) C. brecciarum, C. Brandegei (C. & R. Bot. (^az. 13. 210 

 (1888) as Peucedanum). 



The fourth section of Cogswellia is Cynomarathrum 

 (Nutt. C. & R. Umb. 244 (1900) as genus). This is character- 

 ized by caespitose, woody and fleshy roots branching below; 

 crowns densely clad with fibrous and dead leaf sheaths and old 

 woody petioles: acaulescent, with rigid stems and leaves, the 

 latier with acerose tips, coriaceous, pinnatelv divided into 

 fiistant and linear lobes or pinnae not wider than the petioles, 

 I'ght-green. narrow, with long petioles and very short leaf 

 sheaths; rays nearly equal, at least the fertile ones; pedicels 

 mostly as long or longer than the fruit; whole plant smooth; 

 ruit oblong to elliptical, with narrow lateral wings with 

 blunt edges, dorsal ribs conspicuous and the two outside ones 

 often winged, but wings not nearly as wide as'the lateral ones. 

 I his includes C. Nuttalhi (Grav Proc. Am. Acad 8 287 (1870) 

 ns7?r o ^^^ ""^"^^y ^^P^^ (Watson Bot. King 129 

 (1871) as Peucedanum gravcolens var) C Parrvi (Watson 



Tb"iV^''''- ^^ ^^^ ^^^^^^ ^' Peucedan^im) ^ 

 i..A K .u ^"""^'T ""^ Cogswellia is Cous. This is character- 

 izea by the roots bemg a tuber or a string of tubers mostly 

 round and with a slender prolongation below; weak and deli- 

 cate peduncles and leaves; leaflets linear to filiform (short 



