CiiiEROPHYxxuM. UMBELLIFERiK. C37 



sometimes proliferous; umbellets 5-8-flowerecl ; fruit elliptical; jirickles in- 

 curved and siiiiple at the apex. — Ilvok. Sf Arn. ! but. Beecheij, sujijji. jt. 348. 

 Caucalium dauccndes, Null. ! mss. 



California, Douglas ! Nuttall ! — Plant about a span long, somewhat 

 branching:, slender. Leaves finely divided, with short linear ultimate lobes. 

 Rays of the umbel slender, 1 or 2 of iliem often proliferous (or [iroducing a 

 seeond compound umbel). Flowers while, very minute. Leaflets of the 

 involucel about 5, short, occasionally 3-eleft, but usually entire. Fruit about 

 2i lines long ; prickles slender, tlieir lenglli rather less than the diameter of 

 tlie carpels. Seed deeply sulcaic by the inflexion of the margin, but not in- 

 volute. — The fruit of this plant is exactly that of some species of Caucalis ; 

 but the jietals are ditlercnt, and the habit is somewhat peculiar, on which 

 account Mr. Nuttall considers it a distinct genus. He regards the umbel as 

 sessile at the summit of a leafy branch. 



Tribe XL SCANDICINEiE. Koch; DC. 



Fruit compressed or contracted laterally, usually rostrate. CarpelB 

 with 5 equal filitbrm or winged ribs, of which the lateral ones are 

 marginal ; all of them sometimes obliterated at the base and only 

 conspicuous at the apex. Seed teretely convex, either furrowed on 

 the face or involute. — Umbels compound. 



40. CH^ROPHYLLUM. Linn. ; Hoffm. Umb. \. p. 33 ; DC. yrodr, 



4. p. 224. 



Margin of the calyx obsolete. Petals obovate, emarginate, with an in- 

 flexed point. Fruit not rostrate, compressed or contracted laterally. Carpels 

 with 5 obtuse equal ribs. Commissure deeply furrowed. Intervals with 

 single vitta;. Carpophore 2-clefl;. Seed teretely convex; the transverse 

 section semilunar. — Perennial, biennial, or annual herbs. Leaves decom- 

 pound, the segments toothed or many-cleft. Involucre none, or few-leaved, 

 Involucel many-leaved. Flowers white or occasionally rose color, rarely 

 yellow. 



W''!. C. procumbens (Lam.) : stem decumbent or nearly erect; leaves bipin- 

 nately divided ; segments pinnatifid ; the lobes oblong or lanceolate-oblong, 

 rather obtuse; umbels opposite the leaves, usually sessile, of 2-3 (rarely 4) 

 rays ; involucre none ; involuccls of 4-5 ovate-oblong leaflets ; fruit nar- 

 rowly oblong, abruptly contracted at the summit ; ribs scarcely as broad as 

 the intervals.— Lam. diet. 1. p. 685; Pursh, Jl. 1. p. 195 ; Nutl. ! gen. 1. 

 p. 194 ; EU. sk. 1. p. 357 ,• Darlingt.fl. Cest. p. 198. Scandix procumbens, 

 Linn. spec. 1. p. 257. Mvrrhis procumbens, Sprcng. Umb. prodr. p. 29, 4* 

 in Schult. syst. 6. p. 516 ;^ Torr. ! Jl. p. 309. 



/?. Shortii : umbels pedunculate ; fruit oblong, not contracted at the 

 summit. 



Moist shady places, particularly along rivers. New Jersey I to North 

 Carolina! South Carolina, £//?o«. Arkansas, .Vw^aZL Kentucky (as also /?.) 

 Dr. Short ! April-May.— ® or (f) Stem 6-18 inches long, usually decum- 

 bent, but sometimes erect or oblique, when young more or less hairy, but 

 often nearly glabrous except the sheaths and margin of the leaves. Lobes 

 of the leaves 1-2 lines wide, mostly obtuse. Umbel (except in /?.) either 

 entirely sessile or on a ver\^ short peduncle. Involucel at first equal to tlie 

 umbellets, but by the growth of the pedicels becoming much shorter. Petals 



