632 



AMMIACEAE. 



Vol. 11. 



2. Cogswellia daucifolia I Xutl. ) M. I'. Jones. Carrot-leaved Parsley. Fig. 311S. 



I'cuccdanum daucifolium Nutt. ; T, & G. Tl. \. 



A. I : 627. 1840. 

 Peucedaniiin foeniculaceiim daucifolium T. & 



G Fl. N. A. I : 627- 1840. 

 Cogsivellia daucifolia M. E. Jones, Contr. 



West. Bot. 12: 34. 1908. 



Tomentose-pubescent, or becoming nearly 

 glabrous ; peduncles 4-10' high, usually 

 e.xceeding the leaves. Roots stout and 

 deep; leaves very finely dissected into short, 

 linear or filiform acute lobes and segments, 

 Ibc primary divisions ternate or pinnate; 

 petioles strongly sheathing at the base; 

 umbels unequally 3-12-rayed, the rays i'- 

 12' long; bractlets of the involucels tomen- 

 lose, united for more than half their length, 

 withering; flowers yellow; pedicels 2" -4' 

 long in fruit ; fruit broadly oval, glabrous, 

 about 3" long, the lateral wings narrower 

 tlian the carpel, dorsal and intermediate 

 ones rather prominent ; oil-tubes 1-3 in the intervals. 



Prairies and plains, Missouri and Nebraska to Texas. March-April. 



3. Cogswellia foeniculacea (Nutt.) Coult. & Rose. Hairy Parsley. Fig. 31 19. 



Ferula foeniculacea Nutt. Gen. i : 183. 1S18. 



Lomalium villosuin Raf. Journ. Phys. 89. loi. 1819. 



Cogszcellia viUosa Spreng. ; Roem. & Scliultes, Syst. 6 : 588. 

 1820. 



Cogsxcellia foeniculacea Coult. & Rose, Contr. U. S. Nat. 

 Herb. 12 : 449. igog 



Tomentose-pubescent; peduncles 3'-8' long, exceeding 

 the leaves. Roots long and deep ; leaves very finely dis- 

 sected into narrowly oblong obtuse lobes and seginents. 

 the primary divisions mostly ternate ; umbel 4-10-rayed. 

 the rays 4"-lo" long in fruit ; bracts of the involucels 

 lanceolate, tomentose, or finely pubescent, separate or 

 nearly so ; flowers yellow ; fruit oval, finely pubescent, 

 3"-3i" long, about 2i" broad, the lateral wings nar- 

 rower than the carpel, the dorsal and intermediate ribs 

 prominent; oil-tubes 3-4 in the intervals. 



Plains and dry soil, North Dakota to Assiniboia. Wyoming, Nebraska and Texas. April-May. 



12. CYNOMARATHRUM Nutt. ; Coult. & Rose, Contr. Nat. Herb. 7 : 244. 1900. 



Perennial, acaulescent herbs, with stout rootstocks, pinnately compound leaves and 

 yellow flowers in compound cymes. Involucre mostly wanting. Involucels of a few narrow 

 bracts. Calyx-teeth evident. Fruit oblong, strongly flattened dorsalb', the carpels with 

 sharp prominent dorsal and intermediate ribs, the lateral ribs broader and winged ; oil-tubes 

 usually 3-S in the intervals and several on the commissural side. Stylopodium flat, evident. 

 Seed-face flat. [Greek, dog-parsley.] 



Six known species of the western United States, the following typical. 



