PENTANDRIA DIGYNIA 199 



Liot anmutl. Stemblo 15 inches long, slender, oblique or procumbent* often 

 nearly erect, branching, -sal cate and striate, mostly pilose, especially when young, 

 % luuimes nearly smooth. Leaves bipinnatcly decompound ; petioles pilose, the 

 diluted base densely fringed with long white hairs. Leaflets pinnatitid ; segments 

 m<»uly obtuse, obscurely mucronate, more or less bristly-ciliatc. Umbels termi- 

 nator lateral and opposite the leaves, on peduncles 1 to 3 inches long; rays gen- 

 era ly 3 (sometimes 2, and even 1). Involucre 0. Involucels shorter than the rays 

 o( ihe umbellets. Petals while, oval, or ovate, mucronate, incurved, or often 

 itraight. Fruit dark brown, 1 fourth to 1 third of an inch lv>n_', nearly linear, 

 •liiitly beaked, or crowned with the conic base of the styles. Carpels with 5 flat- 

 fish or obtuse ribs; interstices convex, reddish brown. Commissure incurved, or 

 f.ir nved by a deep grove (with 2 villa within the marginal ribs ?). 



Hulk IVIoist shaded grounds; Brandy wine : not common. /•?. April -May. Fr. June. 



( os. This plant is by no means common ; but I have observed it in abundance 

 ab»u the east end of Wisiar's bridge, on the bank of the Brandywine. I hare re- 

 cvred specimens from Prof. Short, of Kentucky, with the fruit ovate-oblong, and 

 not at all beaked, — which I suppose to be the var. Bo8cii,o( De Candolle. Nooth- 

 tr tpecies, as the genus is now constituted, is known in the V*. States. 



151. OSMORHIZA. JRaf. DC. Prodt\ 4. p. 232. 

 [.Giock, Osme, or Osmos, odor, and IViiza, root; from its sweet or fragrant root.] 



Calyx with the Umh obsolete. Petals obovale, somewhat cmarginatc, 

 with a very slender inflexed acumination. Fruit linear-oblanccolatc, 

 angular, elongated, attenuated at base, contracted at the sides. Car- 

 pe & with 5 rather acute stibsulcate bristly ribs, of which the lateral 

 oms are marginal ; the commissure with a deep groove. Channels 

 flat, without vittx. Seed much shorter than the pericarpial tube of 

 tlu calyx, terete, with the margin involute. Involucre 2 to 4-leaved. 

 Involucels about 5-leaved. 



1. O, lonoistylis, DC. Stem mostly dark purple, hoary-pubescent ; 

 leaves biternate, somewhat hairy ; leaflets incised-serrate ; styles elon- 

 gated, subulate-filiform, erect, or finally somewhat diverging; fruit 

 clavatc. Becky Bot. p. 150. Icon, Hook. Jim* 1. tab. 96. 

 Scandix dulcis. JWuhl. Catal. p. 31. 



Cherophyllum Claytoni. Pursh? Am. I. p. 195. Not? of Pers. Ell. 

 no* LindL 



Unspermum Claytoni. Xxttt. Gen. \.p. 193, Bart. Phil. 1. p. 144. 

 Bi?el. Bost.p. 112. Florul. Cestr. p. 36. Eat. Man. p. 377. 

 Mjrrhis longistylis. Torv. Fl. 1. p. 310, Ejusd. Comp. p. 135. 



Loxg-sttled Osmorhtza. Vulgo — Sweet Cicely. 



hoot perennial, fusiform, or branching, subcarnosc, with a sweet anisatc flavor. 

 ISlcn 2 to 3 feet high, solid with pith, branching, somewhat ribbed, or striate, dark 

 purple, thickly clothed with canescent and slightly curled hairs (rarely smooth), 

 (lie branches often smoothish; stem sometimes branching from the root; radical 

 hates 1 or 2 f on pubescent purple common pet iolesd to 12 inches in length. Leaves 

 raoitly biternate ; petioles subtomentose pubescent, especially at the base and sub- 

 iivsions; leaflets oblong-ovate, acute, incised-serrate, sprinkled with hairs above, 

 •hiiing beneath, yet hairy on the midrib, nerves, and margin. Umbels mostly in 

 pars, or terminating the forked extremities of the stem and branches, sometimes 

 axftary, on peduncles 2 or 3 to 6 inches long ; rays 3 to 5 (usually 4), 1 to 3 inches 



