192  PENTANDRIA. DIGYNTA. 
- -perpendis ly serrate, serratures mucronate, lateral leaf- 
- Jets oblique at the base. . Umbells axillary and terminal. 
Involucrum of 1 or 2 minute leaves, but mostly wanting. 
Involucell 5 and sometimes 6-leaved, acuminated. Um- 
bellets numerous, many-flowered. Calix acute. Seeds 
agreeably aromatic, with paler coloured ridges, and a 
suberase episperm, intervals tuberculate. Han. Abun- 
dant around Philadelphia, in the marshes of the Delaware, 
2. bulbifera, Leaves various; in bulbiferous stems biter- 
nate and very thin, in bulbiferous and umbelliferous stems 
simply ternate, leaflets thicker, upon shorter uncles, 
-._ Jinear sublanceolate, lacerately serrate; umbell terminal, 
solitary, lateral branchlets bulbiferous.. Ogs. Stem low, 
smooth, simple or trichotomous. Leaves in infertile bul- 
Liferous stems, more compound and slender, with ver. 
aes ——— ultimate divisions sublanceolate-linear, wit 
very few serratures, in fertile stems the leaves have very 
short petioles, petioles of the leaflets more than an inch 
~~ jong. Primary umbell often opposite a leaf, the rest soli- 
_ tary, terminal; lateral branchlets short and bulbiferous, 
5 bulbs ovate axillary, covered by the dilated sheaths of the 
leaves, often approximating so as to appear oppositely 
imbricated, but where more distant, distinctly alternate. 
General involucrum of the umbell 1 or 2-leaved, partial 
about 5-leaved. Hap. On the banks of the Delaware near 
’ Philadelphia; but rare. A genuine species, the fruit 
- seareely distinguishable from that of C. maculata. ~ 
Of this genus there are but 5 species, the Sd. C. virosa, 
is indigenous to Europe. : : 
277, MYRRHIS. Morison. (Chervil.) 
« Fruit sublinear, solid and angular, ridges 
a little acute, apex attenuated or crowned 
with. the style. Universal inyelucram none.” 
 SPRENGEL. aa 
Spectres. 1, M. canadensis. (Sison canadense. WL.) 
ses. send onrwepe ovate-acute, incase and. deably 
rate, pe les by pairs; umbells small and unequal. 
bifida Mut. “ti ES eee : 
genus of 16 species, according to Sprengel, chiefly 
% ae » Europe. bets" 
278. * URASPERMUM.} Myrruis. Michaux. 
P Fruit sublinear, solid, acutely angular, cau- 
_ date, and without strig; angles subsulcate, his- 
ag 
