“base; the seeds are Pisa. 
‘Narrower margin; the petals white, 
> at the point —Has. With the above; 
: ns Po the Columbia river. JZ Lewis. 
= Flowering it a ay Both these species exudea resinous 
"aromatic gum on incision, and also spontaneously in mi- 
; nute quantiti ‘I have been induced to refer these 2 
et sie to | ero rather than any other with which I | 
, am acquainted, though they differ considerably in babit, Ps | 
- but agree with the Ferula pumila of Pallas, indigenous 
to Siberia. apt 
267. * PASYINACA. L. (Parsnip.) ; | 
se? it oval, apex emarginate, flatly (and dor- 
ee sally) compressed, marginated, ridges (on cach 
seed) 5, obsolete, intervals striate, commissure 
- also bistriate. Involucrum universal and par- 
lal, none. SPRENGEL, 
ve Flowers yellow; leaves pinnate. P, sativa sometimes 
produces involucells. 
Species. 1. P. sativa. B. arvensis. In Pennsylvania. 
A genus of about 5 species, nahigennas to Europe and 
the Levant. 
968. THAPSIA. ZL. 
hue 08 
sia “Fruit sublinear, ecostate; (seed) 4- winged, 
wings. 2 dorsal and 2 marginal. Fnvolucrum 
none 2 SPRENGET. 
Petals entire incurved; flowers yellow or white; leaves 
twice or thrice pseusdo-pinnate, 
Specizs, 1, J. *glomerata. Neavly stemless; leaves 
_ Smootirand flat,cruciately subbipinnatifid, seg ments linear- 
y, obtuse, ultimate ies confluent, subtrifid; ymbells 
mous, shorter than the leaves; involucrum none; 
I dimidiate; flowers numerous, subsessile. 
acaule, Pursh, 2. p. 732, in Suppl. v. 8 in Herb. 
mbert, under this name. 
“a ser uve Pee saberens, peatniah Plant siauath, 
a" , almost an re sending seve- 
alata trom the _ ~ ab 
wi fg gt hee Nie 
. , 
erage Fe) a AI 
ie sume root; som simple, or subdivided 
pbc ace dle 4 to. 6 inches bigh- 
aves partly oppoule aie ce y divided, lobes short 
‘and obtuse, decussating at the sides petiole as Tong as 
