48 



type. Intermediate forms are numerous, as for instance certain Delaware 

 forms, sent by Mr. Cauby, with leaves of the type (the narrow forms i 

 and the small fruit of the variety. 



i. T. Fendleri. Stem slender, simple, 1 to 2 feet high, 

 from ;i large fascicle of tuliers (an inch long): leaves pinnate, 5 to 

 U-foliolate; leaflets ovate or oblong (or lanceolate in upper leaves), 

 obtuse,] to 2 inches long, incisely serrate: umbel unequally 5 to 

 12-rayecl, with neither involucre nor involucels; rays y^ to 1 J^ 

 inches long; pedicels 2 to 8 lines long: fruit ovate, scarcely 2 lines 

 long, with rather more j-jromincnt dorsal and intermediate ribs, 

 and narrower lateral wings, than in the other species: oil-tubes 2 

 to 4 on the commissural side. (Fig. 27.) — Archemora Fciidlcri 

 Gray, PI. Fendl. o6. 



Subalpine swamps and stream banks. Colorado {Hall d- Harbour 220. 

 Parry 15.'), Vasey 228, Canby, Brandegec, Coulter, Jones 38(), Frcncli, 

 Trelease, etc.) and New Mexico (Fendler 272). Fl. July. 



11. IIERACLEUM Linn. Gen. n. 845.— Tall stout peren- 

 nials, with large terr.ately compound leaves, deciduous involucres, 

 involucels of numerous bractlets, large man\-rayed umbel of white 

 flowers, and obcordate petals (the outer ones often dilated and 

 2-cleft). 



The fjenus is very ch)sely allied to Fd.stinacd, differing chielly in the 

 remarkable petals and thick conical stylopodium. 



I. H. lanatum Miclix. Fl. i. 16(). A^ery stout, 4 to 8 feet 

 high, pubescent or woolly above: petioles much dilated; leaflets 

 petiolulate, round-cordate, 4 to 10 inches broad, irregularly cut- 

 toothed: rays 2 to 6 inches long: fruit 4 to () lines long, somewhat 

 pubescent. (Fig. 28.) 



Wet ground, throughout Canada and as far south as North Carolina and 

 Kentucky, extending westward to New Mexico and the Pacific coast. 

 Fl. June. 



The var. re»niinit Torr A Gray, Fl. i. ()32, is untenable. If it deserved 

 varietal rank it would have to be made the type, as it was the woolly form 

 that was described by Michaux as H. hnialinn. 



II. Sl'().^•^^•I.l^.^I L. bus been found on ballast near N. \ . 

 City by Mr. Addison Hrown. 



12. PASTINACA Linn. Gen. n. 862.— Tall stout biennial, 

 with pinnntely compound leaves, mostly no involucre, and yellow 

 flowers. 



