640 



AMMIACEAE. 



Vol. II. 



2. Thaspium barbinode (Michx.) Nutt. Hairy-jointed Meadow Parsnip. 



Fig. 3135- 



Smyrnium barbinode Michx. Fl. Bor. Am. i : 



167. 1803. 

 Thaspium barbinode Nutt. Gen. i : 196. 1818. 

 T, barbinode angustifolium Coult. & Rose, Bat. 



Gaz. 12 : 137. 1887. 



Erect, divergently branched, 2°-4° high, 

 pubescent at the joints and sometimes also 

 on the young shoots and rays of the umbels. 

 Leaves more or less petioled, mostly bipin- 

 nate (the upper often simply pinnate and 

 the basal 3-pinnate) ; segments ovate to 

 lanceolate, acute at both ends, or rounded 

 at the base, rather thin, incised-serrate or 

 cleft, i'-2' long; umbels i'-2' broad; flow- 

 ers light yellow; fruit nearly 3" long, 7 of 

 the ribs commonly broadly winged. 



Along streams, Ontario to Minnesota, Kan- 

 sas, Florida, Kentucky and Arkansas. May- 

 June. 



3. Thaspium pinnatifidum (Buckl.) S. Gray. 

 Cut-leaved Meadow-Parsnip. Fig. 3136. 



Zizia pinnatijida Buckl. Am. Journ. Sci. 45: 175. 1843. 

 Thaspium pinnatifidum A.- Gray, Man. Ed. 2, 155. 1856. 



Divergently branched, 2°-4° high, more pubescent than 

 the preceding species. Leaves distant, ternately pinnatitid 

 into numerous oblong or linear-oblong lobes, the basal 

 ones long-petioled and very large ; flowers light yellow ; 

 fruit i*"-2i" long, puberulent, all the ribs winged, but 7 

 of the wings broader than the other 3. 



In woods and copses, Kentucky to North Carolina and Ten- 

 nessee. June. 



24. TAENIDIA Drude in E. & P. Nat. Pflf. 3*^ : 

 195. 1908. 



A glabrous perennial herb, with 2-3-ternate leaves and compound umbels of yellow flow- 

 ers. Involucre and involucels none. Calyx-teeth obsolete. Stylopodium broadly conic. 

 Fruit oval, more or less compressed. Carpels obscurely 5-angled with slender equal distant 

 ribs; oil-tubes numerous, 2-6 in the intervals. Seed-face flat or slightly convex. [Greek, 

 with reference to the slender ribs.] 



A monotypic genus. 



I. Taenidia integerrima (L.) 

 Drude. Yellow Pimpernel. 

 Fig- 3137- 



Smyrnium integerrimum L. Sp, PI. 263. 



1753; 



Zi:iia integerrima DC. Rap. PI. Jard Ge- 

 neve 3 : 7. 1830. 



Pimpinella integerrima A. Gray, Proc. Am. 

 Acad. 7 : 345. 1868. 



Taenidia integerrima Drude, loc. cit. 1908. 



Erect, branched, glabrous, somewhat 

 glaucous, i°-3° high, slender. Leaves 

 2-3-ternate, the upper with short dilated 

 petioles, the lower long-petioled ; seg- 

 ments ovate, oval, or lanceolate, obtuse, 

 or acutish and often mucronulate at the 

 apex, entire, 6"-i2" long; umbels slen- 

 der-peduncled ; rays 10-20, 2'-4' long in 

 fruit; flowers yellow; pedicels slender; 

 fruit oval, glabrous, about 2" long. 



In rocky or sandy soil, Quebec to North 

 Carolina, Ontario, Minnesota, Arkansas 

 and Mississippi. Ascends 4000 ft. in North 

 Carolina. May-June. Golden alexanders. 



