125 



also colleclcd on ballast near Piiiladclphia {Marliiulalc). It may 

 be recognlzetl by its l)ianching and rather leafy habit, pinnate leaves 

 of 1 or 2 pairs of broadly cnneate-obovatc or rhomboidal lobcd and 

 toothed leaflets. It is much changed li\- cultixation. 



A. I'KTKOSKi.iNiM L.,the Cultivated parsley, anati\eof the 

 Mediterranean region, is reported by }. Donnell Smith from Anne 

 Arundel county, Maryland, May 29, 1878; and by Professor 

 NTacoun, as having become spontaneous in Canada. 



A. iu<:iM<:.\s Reich., a ICuropean species, has been found on 

 ballast near Philadelphia ( Marlim/a/c). 



47. HARBOTRIA.— Glabrous perennials, with 1 to 8 

 leaves which are ternately decompound and vvitii narrowly linear 

 or filiform segments, involucre and involucels of few subulate 

 bracts, and long-peduncled umbels (mostly in pairs) of yellow 

 flowers. 



First collected by Hall A- Harbour, to the latter of whom it is dedi- 

 cated, as the name ffallia is preoccupied. 



1. H. trachypleura. A foot or more higii: leat-segments 

 mucronnlate: umbels (mostly 2 long-peduncled ones) 15 to 25-raycd ; 

 rays an inch long; pedicels 2 to 8 lines long: fruit 2 lines long. 

 (Fig. 146.) — Thasfhnn trachyplcjirum Gray, Proc. Acad. Phi lad. 

 1868, 68. Cicnta (?) trachyphura Watson, Ribl. Index. Polypet. 

 417. 



In the foot-hills of the mountains of Central Colorado (f/rt7/ tt- i/cn- 

 //ojtr 215, Pff ;•/•»/ loO, etc., etc.) to New Mexico (F^w*/?^/- 277). Fl. May to 

 July. 



This plant, as the synomymy shows, has been referred doubtfully to both 

 TiKiMpiuin and Ciruf'M Its position in Tha><pium must have been among 

 the so-called "apterous" forms, which we have referred to Ziziu. from 

 which genus it is plainly separated by its much more prominent corky ribs, 

 narrow and prominently corky-thickened commissural face, and whole 

 general habit. It is distinct from Cicntu not only in these same characters, 

 but also in its more laterally llattened fruit, equal ribs, yellow lioweis. and 

 habitat. 



48. ALETES. — An acaulescent glabrous perennial, with 

 pinnate leaves, broad sharply toothed or cut rather distant leaflets, 

 mostly no involucre, and involucels of lanceolate bractlets about 

 equalling the yellow fiowers. 



