25G 



UMBWLLIFER.'E. iianicula. 



in irregularly compound few-rayed umbels, involucrate with sessile leafy usually 



toothed bracts, the bracts of the involucels small and entire. 



A gouus of II few btiittiroil .sjiecios, moro tliaii liiilf of tlieiii imtivo of North Aiiiericti, and of 

 these only two uru contiiu'd to tho n-f^ioii oast of tho Hocky Monntaius. The Califoniiaa siiccicjs 

 arc chiolly liiuitud to tho Coaat Itunyua uiul arc imculiar in tlmir habit, siiuiU fruit, kc. 



* Leaves pabnately diokleJ, the lobes toothed, or lacerate, or pinnatijid ivith dccur- 

 rent seymaits : rootstocks thickened. 



-4- Mature fruit shortly pedicellate : Jlowers yellow. 



1. S. arctopoides. Hook. & Arn. Stems very short, with several divergent 

 scape-like branihes, ulteu much exceeding the leaves (3 to G inches long), each bear- 

 ing an umbel uf 1 to 3 elongated rays : leaves deeply 3-lobed, the cuneato divisions 

 once or twice laciniately cleft, with lanceolate acute spreading segments : involucre 

 of 1 or 2 sindlar leallets : heads large, 3 to G lines in diameter, with conspicuous 

 involucels of 8 tu 10 narrowly oblanceolate nu>.stly entire bracts : fruit shortly 

 pedicellate, 1,', lines long, naked at base, strongly ariiicd above. — liut. Ijcechey, 

 Ml ; lluuk. M. i. 25S, t. 91. 



About Sun Fi-ancisi;o ami eastwunl in thu Sacramuiito Valley, in the jilaiiis ami on dry hillsides. 

 Strongly marked by its low s(;a\>e-like biamdies, large inviducels, and laciniately lobed leaves ; 



Idant yellowish {^reen. Tlu! figure in Hook. Fl. repiescnts tlie sjieeies potirly, and but for tlie 

 argc solitary head might lie supposed to be fioni a low fuiin of <S'. luciuiala. 



'I. S. Menziesii, lluuk. «fe Arn. Stem solitary, erect, 1 to 2.^ feet high, branch- 

 ing: leaves rounded-cordate, 2 or 3 inches broad, very deeply 3-5-lobed ; the })road 

 lobes sharply toothed or st)mewhat cleft and the teeth tip[)ed with slender bristles ; 

 upper leaves more narrowly lobed and laciniately toothed : umbel of 3 or 4 slender 

 i-uys ; involucre often small, of 2 or 3 narrow leallets, the involucels of G to 8 lan- 

 ceolate entire bracts a line or two long: sterile llowers nearly sessile: fruit 4 to 8 

 in each head, beconiing distinctly pedicellate and divergent, obovate, a line long or 

 more, covered with hooked prickles. — Bt)t. Heediey, 112; Hook. Kl. i. 258, t. DO. 



in shaded woods from Santa t'lara County to tho British boundary. 



-I- -t- Fruit sessile. 



3. S. Nevadensis, Watson. Stem very short, the peduncles mostly from the 

 base, 1 tu (') inches lung : leaves tornate, tho divisions oblong-ovate, 3-5-lobed ; the 

 segments lobed or toothed : involucre pinnatihd and toothed, a half to an inch long : 

 rays about 5, sometimes branched, 2 to 5 lines long in flower, becoming | to U 

 inches long ; involucels somewhat one-sided, of several oblong acute bracts more or 

 less united at base : flowers yellow, the sterile equalling the pedicels : fruit covered 

 with stout hooked jnickles. — IVoc. Am. Acad. xi. 131). 



Indian Valley, Plumas County, Mrs. M. E. P. Ames, 1874 ; Lcmmon. 



4. S. laciniata, Hook. & Arn. With the habit of *S'. Menziesii: leaves cordate 

 or triangular, 3-jjartetl, the divisions laciniately 1 - 2-pinnatilid and the segments 

 laciniately tuothed ; the teeth spinusely pointed : flowers yellow : mature he-ads 

 small, globose ; the numerous fruit naked at base, hooke<l-bristly above. — Lot. 

 Ik'echey, 317. S. nitdicanlis, Hook. tVi Arn. 1. c. 



From Sun Diego Id llumluildt County. A form is eolli'i'tod at San Diego and on tlio Muena- 

 vciilura with liirgiT liciids of IhiwerH and Iho divisioni of tho UtavuM more oblong; peihaps dJH- 

 tinet, but tlie fruit is uukuowu. 



5. S. bipinnatifida, Dougl. Erect, a foot high or less, with usually a pair of 

 opposite leaves at base and 1 to 3 leaves above : leaves long-petioled, triangular to 

 oblong in outline, 2 or 3 inches long, ])innately 3 - 5-lobed ; the segments distant, 

 incisely toothed ur lubed, decurrent on the tootli(;d rachis ; teeth spinose-pointed or 

 unly acute : umbel with usually 3 or 4 elongated rays, the cleft involucre lateral : 



