672 UMBELLIFERAE 



Rcfs. — OSMORRHIZA occiDENTAUS Torr. Bot. Mex. Bound. 71 (1859) ; Jcpson, Fl. W. Mid. 

 Cal. 347 (1901), ed. 2, 292 (1911), M.in. 703 (1925). Ghjcosma occidentals Nutt. ; T. & G. Fl. 

 1:639 (1840), type loc. Blue Mts., Ore., Nuttall. Myrrhis occidcjitalis B. & 11. Gen. PI. 1:897 

 (1867). Washi'ngtonia occideniolis C. & R. Contrib. U. S. Nat. Herb. 7:C7 (1900). 



5. 0. bolanderi Jepson. Sheep Cicely. Stems stout, 3 feet hip^h ; herbage 

 more or less puberulent, somewhat more pubescent at the nodes; leaflets broadly 

 ovate, coarsely toothed. 1 to 2 inches long; fruiting rays spreading, IY2 to 3 inches 

 long; fruit 8 to Q^ij lines long, with a stout short beak; stylopodium flat, shorter 

 than the style; seed-face deeply sulcate. 



Woods,* 1500 to 8000 feet: Mendocino Co. to Siskiyou Co.; Modoc Co. Apr., 

 fr. July-Aug. 



Locs.— Cahto (Contrib. U. S. Nat. Herb, 7:68) ; Long Gulch near Yreka, Butler 455; Lost 

 Lake traO, Warner Mts., L. S. Smith 1019. 



Refs. — OSMORRHIZA BOLANDERI Jepson, Madrofio 1:120 (1923), Man. 703 (1925). Myrrhis 

 bolanderi Gray, Proc. Am. Acad. 7:346 (1868), type loc. Lambert Lake, Mendocino Co., Bolander. 

 Osmorrhiza o'ccidentalis var. bolanderi C. & R. Rev. N. A. Umbell. 119 (1888). Washingtonia 

 bolanderi C. & R. Contrib. U. S. Nat. Herb. 7:68 (1900). 



38. DAUCUS L. 



Bristly or hispid annuals or biennials with dissected decompound leaves and 

 white flowers. Umbels compound, concave, surrounded by cleft bracts and borne 

 on long peduncles. Involucels of entire or toothed bractlets. Calyx-teeth obsolete. 

 Fruit somewhat flattened dorsally. Primary ribs slender, bristly ; secondary ribs 

 with a single row of prominent barbed prickles. Oil-tubes as in Caucalis. — Species 

 about 60, all continents. (Daukos, the ancient Greek name.) 



Involucre divided into short linear or lanceolate segments ; rays mostly 2 to 6 lines long 



1. Z>. pusillus. 

 Involucre divided into elongated filiform or linear -lanceolate segments; rays 1 to 2% inches long.. 



2. D. carota. 



1. D. pusillus Michx. Rattlesnake Weed. Annual, 4 to 7 (or 22) inches 

 high ; stems and peduncles retrorsely hispid ; leaves finely dissected into linear seg- 

 ments; rays mostly 2 to 6 lines long, sometimes as much as 1 or IV2 inches long, 

 somewhat unequal ; pedicels very unequal, commonly 1 or 2 lines long or almost 

 wanting ; fruit 1% to 2 lines long. 



Open grassy foothills, 100 to 4500 feet: throughout cismontane California. 

 East to the Carolinas, north to British Columbia. Apr. 



Field note. — The herbage is in rural repute as an antidote for the bite of the rattlesnake, 

 whence Yerba de Vibora of the Spanish-Californians. 



Locs. — S. Cal.: Santa Catalina Isl., Blanche TrasTc ; San Bernardino, Parish; Cow Canon 

 divide, e. San Gabriel Mts., Peirson 500; North Pomona, Braunton 245; Ojai Valley, Hubby; 

 Santa Cruz Isl., Jepson 12,088. Coast Ranges: Arroyo Grande, Alice King; Estrella plain. 

 Barber; Lorenzo Creek, upper San Benito River, Jepson 12,240; San Francisco, Greene; Hopland, 

 Mendocino Co., Jepson 9287; "Willits, Duran 1439; Mail Ridge, s. Humboldt Co., Jepson 16,387; 

 Little River (mouth), Humboldt Co., Tracy 2579; Redwood Creek, n. Humboldt Co., Jepson 1963; 

 Martin ranch. South Fork Trinity River, Jepson 2021; Ely, sw. Tehama Co., Jepson 16,333. 

 Sierra Nevada: Oriole Lake, Tulare Co., W. Fry 344; Mariposa Co. foothills (Zoe 3:29). Marys- 

 ville Buttes: Copcland 3354. 



Refs. — Daucus pusillus Michx. Fl. Bor. Am. 1:164 (1803), type from the Carolinas; C. & R. 

 Contrib. U. S. Nat. Herb. 7:249, fig. 65 (1900) ; Jepson, Fl. W. Mid. Cal. 347 (1901), ed. 2, 293 

 (1911), Man. 703 (1925). 



2. D. carota L. Carrot. Biennial ; stems several, erect, branching, hispid, 2 

 to 3 feet high; root fleshy, conical; leaves several times dissected into linear or 

 lanceolate segments; involucre divided into 3 or 5 filiform or narrowly linear- 

 lanceolate segments ; rays numerous, 1 to 2% inches long in fruit ; umbels in fruit 

 concave and like a bird's nest ; fruit 2 lines long. 



