41 



ohloiijiC, "i^labrous, 2 to 4 \\nc<- Ioiil;". cniaiLjiiiatf at liasc; dor- 

 sal ar.d iiUcnncdiatc ribs acute and ])roiuii-.eiit, often sonicwdiat 

 winged ; lateral wiiij^s thin, broader than body: oil-tnbes mostly 

 solitary in the intervals (sometimes :i or ;^ ), 'i to (j on the commis- 

 sural side: seed-face plane. ( I'^ij^. l-"). ) 



Along tlio Alloglmiiit's, I'l-oni I'eiMisylvaniii to Nortli Ciiroliiia. Fl Au- 



gUHt. 



* * * Otl-t/ihcs tJircc to many in tlic Intervals: eastern 

 species. 



14. A. hirsuta Muhl. Cat. 'I ed. :}(l. Tomentose above, 2 

 to f") feet high: leaves twice or thrice pinnately or ternately ilividetl 

 (the uppermost mostly reduced to large inflated petioles); leaflets 

 thickish, lanceolate to oblong ( half to about an inch broad), ser- 

 rate: umbel equally m; iiy-rayed, with nt) involucre, and involucels 

 of linear l)ractlets; rays 1 to 2 inches long; pedicels 2 lines long: 

 fruit nearly round, pubescent, 2 lines in diameter; dorsal and intei- 

 mediate ribs prominent; lateral wings thin, as broad as body: oil- 

 tubes 8 to in the intervals (sometimes 1 or 2), to 10 on the 

 commissural side: seed-face plane. (Fig, l(j. ) Are/ianoeUca 

 Jiirsuta Torr. & Gray, i. <)22. 



Dry giound, Canada to Florida, and westward to Miinu'sota and 'l\n- 

 uossee. 



IT). A. dentata C. A: K. Hut. (Ja/ette, \ii. »*)]. Slender, 

 glabrous, 1 to 8 feet high: leaves tei'iiate, \vith long slender petioles 

 and few leaflets, which are small ( i_; to 1 inch long), lanceolate, 

 coarsely toothed or lobed: umbel (slightly pubescent ) ecjually 5 

 to 10-rayed, with no inxolucie, ;nid involucels of subulate bractlets; 

 rays about an inch long; ix'dicels :{ lu 4 lines long: fiiiil broadly 

 oblong, glabrous or pubescent, lij to 2'j lines long; dorsal and 

 intermediate ribs more or less prominent; lateral wings thin, as 

 broad as body: oil-tubes about 20 and continuous, S of them on 

 the commissural side: seed-face plane, (Fig. 17.)- Archangelica 

 dentata Chapman, Torr. A: (irav, Fl. i. ()22. 



Diy pine barrens, Florida. Fl. July to Xovfinltt-r. 



1»). A. atropurpurea L. Spec. 251. \ery s'.out, smooth, 

 with dark purple stem, 4 to ♦> feet high: leaves ternate then pin- 

 nate; leaflets ovate to lanceolate (1 to :' illche^ long), sharply cut 

 mucronatc-serrate: umbel (glabrous) etjually 1 o to 2o-ra\ed, with 



