532 COMPOSITAE 
Earliest ae small, elliptic, spinulose-denticulate or undulate-lobed; leaves of the basal rosette 
oblanceolate, to 3 dm. long an m. wide, arachnoid and puberulent beneath, thinly so abov ve and 
ided, t 
. andre 
stems, soley or amass ly in loose to dense clusters, campanulate, 3.5-5.5 cm. long; involucre 
i andula i i j 
mm. ed, 
achenes narrowly obovate or oblongish, = cuneate, more or less flattened, light to dark 
brown, 5-6.5 mm. long, 2-2.5 mm. wide ; Pa s 2-4 cm. long, buff, the tips scarcely enla rged. 
A » grassy . brushy slopes, rarely oe selec Tc Sonoran and gg ween ern sn 
California C Coast Ranges. Type focattty: “hills at Oakland and elsewhere near San Fra , ca lifor 
pril—Jul 
Hybrid- like variants gene A — to C. quercetorum can be found where this species grows in the 
~~ wd — eae rewsu, C. dou , C. fontinale, C. actbdeatiee, = Pasa es was Loggers even other species. 
rum var Oe ee (Petrak) Jepson, Pi; lif. 1164. 1925. (Cirsiu 
om Petr =< Bak, Bot. (Centralbl. 35: 405. Pgh tems pe rs oe Pal 5 (or 95 goth tall; heads more loosely 
b her ic sf els peduncles sa = the region of San Francisco Bay, California. Type locality: Thousand 
Oaks — Berkeley, Ala wet “ 
> per a Lu 
Monterey County. In San Mateo County, plants of this variety form a raristie ei toa iad exhibit csguees 
ee. CG. Sar C. callilepis, and ‘tesibiy C. fontinale. Type locality: northwest of San Bruno, San Mateo 
25. Cirsium loncholépis Petrak. Gracious Thistle. Fig. 5926. 
Cirsium loncholepis Petrak, Beih. Bot. Centralbl. 35: 375. 1917. 
Plants with a stout or slender taproot, annual or perhaps sometimes living more than one 
eason, generally stout and succulent, subglabrous or tea 8 crisp-puberulent and arachnoid ; 
stems erect, hollow, subsimple, 0.3-1 m. tall, vascular-striate, commonly reddish-tinged. Leaves 
id and more or le 
lent or subglabrate below; basal leaves unknown; er ine leaves oblanceolate, to 3.5 dm. 
long and 1 dm. wide, ivided nearly to the midri : into several-lobed segments, the lobes tipped 
y short slender spines, narrowed below into an elongate, spiny-margined, petiole-like base, the 
base extending a short distance downward as ie ing; upper cauline leaves much more 
e mp o ndric, 3-4 cm. long, s 
or densely clustered in twos to fours at the top of the nearly simple stems; severe glabrous, the 
Senge saga a a Satna ometimes a little scabrous and the margin freq uently 
ro 
ine near the margi 
spinescent, chartaceous, a little twisted; flowers whitish tinged with pur er corollas rise 
long, the tube very slender, 13-17 mm. long, the throat 5-8 mm. long, the lobes . long; 
achenes compressed or a little turgid, obovate-oblong, 3-4 mm. Pec 1.5 mm. wide, veteanh brown 
mottled w own us ligh 5 cm. ig 
Wet soil of coastal hills and flats, often og sare with willow owin the n with marsh plants, 
Upper — —— San Luis Obispo and Santa Barbara Cacgaien: ‘Ccltornis. ag focality: near La Graciosa, 
Santa Barbara Cou June-Aug. This rare thistle which was ce known until it was studied recently in 
the field > Clifton F. "Sete is closely related to the C. foliosum com 
26. Cirsium folidsum (Hook.) DC. Leafy or Dwarf Thistle. Fig. 5927. 
Carduus besieta Hook. Fl. Bor. Amer. 1: 303. 1833. 
Cirsium foliosum DC. Prod. 6: 654. _ 
Cirsium Scmawide Torr. & Gray, Fl. N. Amer. 2: 459. 1843. 
ts 
Cirsium oo anum K. — um. in Just: Bot. mec 291: 566. 1903. 
Cirsi K = Toe. cit. 
Carduus ecuue Eastw. ex x Heller, Mublenbersia 2: 160. (Nomen nudum.) 
pe irsiu ssipodenanrmeaee i su bsp. lanatum Petrak, Beih, B. Ske .. 354. 1917. 
anatum var. oregonense oe rak, op. ¢ 
irstum i eaiienaaa sillenk latisquamum Petrak, op. cit. 358. 
nes drummondii subsp. vexans Petrak, op. cit. ey 
q et. var. citrinum Petrak, op. cit. 363. 
