GEXUS 10. 



CARROT FAMILY 



I. Pseudotaenidia montana Mackenzie. 



Virginia Mountain Pimpernel. 



Fig. 3116. 



Pseudotaenidia montana Mackenzie, Torreya 3 : 

 J59- 1903- 



Stems striate, 22 tall, or less. Leaves 2-3- 

 ternate, the segments ovate to oblong-lanceo 

 late or oblanceolate, i'-ii' long, , strongly 

 veined beneath; petioles dilated and sheathing; 

 peduncles 2^-8' long; umbel-rays 8-12, the 

 longer up to i\' long; rays of the umbellets 

 li"-3i" long; fruit 2%."-$' long, 2" wide. 



Mountains of Virginia and West Virginia. 

 Leaves almost the same as those of Taenidia in- 

 tegerriina. Flowers have not yet been collected. 



ii. COGSWELLIA Sprang.; Roem. & Schultes, Syst. Veg. 6: XLVIII. 1820. 



[LOMATIUM Raf. Journ. Phys. 89: 101. 1819. Not Lomatia R. Br. 1810.] 

 Perennial herbs, acaulescent or nearly so, from thick fusiform or tuberous roots, with 

 ternate, pinnate, or in our species bipinnate or finely dissected leaves, and compound umbels 

 of white or yellow flowers. Involucre none. Involucels of several or numerous bracts. 

 Calyx-teeth mostly obsolete. Stylopodium depressed or none. Fruit oval, oblong or orbicular, 

 glabrous or pubescent, dorsally compressed. Carpels with filiform dorsal and intermediate 

 ribs, the lateral ones broadly winged; oil-tubes 1-4 (rarely more) in the intervals, 2-10 on 

 the commissural side. Seed-face flat or slightly concave. [Name in honor of Cogswell.] 



About 60 species, of western North America. Type species : Cogswellia villosa (Raf.) Spreng. 

 The species of this genus were previously referred to the Old World Peucedanum and their specific 

 names wrongly applied. 



Flowers white or pinkish. i. C. orient alls. 

 Flowers yellow. 



Fruit glabrous ; involucel-bracts united. 2. C. daucifolia. 



Fruit finely pubescent ; involucel-bracts linear, distinct. 3. C. foeniculacea. 



i. Cogswellia orientalis (Coult. & Rose) M. E. Jones. White-flowered Parsley. 



Fig. 3117. 



Lo>notium orientale Coult. & Rase, Contr. U. S. 



Nat. Herb. 7 : 220. rgoo. 

 Cogswellia orientalis M. E. Jones, Contr. West. 



Bot. 12: 33. 1908. 



Finely pubescent, the leaves and peduncles 

 3'-8' high. Root elongated, often swollen in 

 places. Leaves bipinnate, the segments ob- 

 long or ovate, generally pinnatifid into linear 

 or linear-oblong obtusish lobes ; bracts of the 

 involucels lanceolate, scarious-margined ; um- 

 bel 4-8- rayed, the rays unequal, i'-ii' long in 

 fruit; pedicels i"-3" long; flowers white 

 or pinkish; fruit broadly oval or orbicular, 

 glabrous, 2"-3" long, the lateral wings_ nar- 

 rower than the carpel, the dorsal and inter- 

 mediate ones inconspicuous; oil-tubes gener- 

 ally solitary in the intervals, about 4 on the 

 commissural side. 



In dry soil, Iowa and Minnesota to North Da- 

 kota-, Washington, Kansas, Iowa and New Mexico. 

 Confused in previous writings with C. nudicaulis 

 of the Northwest. March-May. 



