638 UMBELLIFERiE. Osmorhiza. 



oval, entire, sometimes cuspidate ; the point extended or incurved. Fruit 

 about one-third of an inch long, and the length 4-5 times greater than the 

 breadth (in /?. about 3 times) : ribs rather flat. 



"^ 2. C. Tamturieri (Hook. & Am.) : stem decumbent or erect ; leaves 

 bipinnately divided ; segments pinnatifid ; the lobes linear-oblong, rather 

 acute ; umbels opposite the leaves, usually sessile ; umbel of 2-3 rays ; 

 involucel of 4-5 ovate leaflets ; fruit linear-oblong, attenuated upwards ; 

 ribs very prominent, mucli broader than the intervals. — Hook. Sf Am. in 

 compan. to hot. mag. 1. p. 47. 



a. fruit glabrous. Hook. Sf Arn. I. c. — C. daucophyllum, Nutt. ! mss. 



0. fruit pubescent. Hook. Sf Am. I. c. — C. dasycarpum, Nutt.! mss. 



Prairies and along rivers, Louisiana! Arkansas! Texas! — (T) ? Stem 

 slender, branching, usually more or less retrorsely hirsute. Leaves more 

 finely divided and the ultimate segments shorter than in the preceding 

 species ; the fruit also narrower and attenuated into a kind of beak. 



C. arborescens (Linn.) was founded on " Cicuta arbor Virginiana," Banist. ex 

 Pluk. mant., a plant which is neither described nor figured in that work, and is 

 now altogether unknown. It is possibly Aralia spinosa. 



41. OSMORHIZA. Raf. in jour, pliys. 1821 ,■ DC. prodr. 4. p. 232. 



Uraspermum, Nutt. 



Margin of the calyx obsolete. Petals oblong, nearly entire ; the point 

 cuspidate and incurved. Stylopodium conical. Fruit linear-elongated, 

 acutangular, solid, attenuated at the base, contracted at the sides. Ribs of 

 the carpels acute, upwardly bristly. Intervals without vittse. Commissure 

 with a deep bristly channel. Seed somewhat terete. — Perennial herbs 

 (natives of North America and Nepaul), with fusiform aromatic roots. 

 Leaves biternately divided ; the segments ovate or ovate-oblong, incisely 

 toothed. Umbels opposite the leaves. Involucre of 2-4 linear-lanceolate 

 leaflets. Involucel about 5-leaved. Flowers white. — Sioeet Cicely. 



I 1. O. longistylis (DC.) : styles filiform, nearly as long as the ovary ; 

 fruit clavate.— J>C. prodr. 4. p. 232; Hook. fl. Bor.-Am. 1. p. 271. t. 96 ; 

 Darlingt. fl. Cest. p. 199. Uraspermum Claytoni, Nutt..' gen. 1. p. 193 

 (excl. syn.) ; Bigel. fl. Bost. ed. 2. p. 112; Sprcng. in Schult. syst. 6. j^- 

 508. Myrrhis foliis trilobatis, Gronov. ! Virg. pi. 148. 



Rich moist soils, throughout Canada ! {Hooker) to New York ! and 

 Virginia ! west to Saskatchawan & Oregon. May. — Root fasciculate and 

 somewhat fleshy, of a sweet spicy flavor, resembling Anise., as is the rest of 

 the plant, though in a less degree. Stem 2-3 feet high, often pubescent 

 when young, as well as the petiole and peduncles ; at length nearly glabrous. 

 Radical and lower cauline leaves on long petioles ; the segments broadly 

 ovate, slightly pubescent both sides, shining underneath, somewhat lobed 

 towards the base. Umbels about 4-rayed, pedunculate ; the raj^s 1-2 inches 

 long. Involucre of 1-3 narrowly lanceolate and ciliate leaflets. Umbellets 

 3-6-flowered. Involucels of about 5 lanceolate cuspidate leaflets. Flowers 

 twice as large as in the succeeding species. Petals with a very long in- 

 curved point. Fruit dark green or blackish, hispid and much attenuate 

 below, rather obtuse at the summit, crowned with the slender and at length 

 diverging styles. 



J-" 2. O. brevistylis {DC): styles conical, their length scarcely equal to the 



