* 
534 COMPOSITAE 
leaves narrowly oblanceolate, to 3 dm. long or bk - os iis iv wide, pinnately partes or divided, 
the divisions mostly 2- ee with deltoid or ova ish s , the segm mg pig pped with 
stiffish yellow spines, the margin sparsely ss el tas. ‘oe below Bo ered, 
petiole-like base; cauline leaves similar nae the leaves eer ming shorte neat — ae sessile 
upward, the base ‘narrowly spiny-auriculate and more or less decurrent as narrow, spinose-pectinate 
hc below the point of attachment; the upper so leaves much reduced, very spiny, linear 
or eon ast the ——- st closely subtending the heads, the basal and cauline leaves thinly gray- 
a li : “ _ mt alon ei bresce ve 
sparse pir pu iebaicran: hea osely or subspicately arranged along the stem from the 
middle or above, becoming aut ‘clustered a ge top m 5, plant and oe occasionally at the 
ends of abbreviated lateral branches, subg ie g; involucre shortly campanulate, 
arachnoid and crisply puberulent “arachn oi :phyliaries fotser, loose, the outer and middle wide ly 
spreading and somewhat upw sin -cu above € appresse base, ovate-lanceolate, ending in a 
short, stiff, yellow spine, the inner nea phan into a slender, twisted, chartaceous, spinose 
tip, the margins citiclase and ane dous, the. outer phyllaries sometimes laterally spinescent, inter- 
grading in this character with the u permost bract-like, spiny leaves; flowers whitish or yellow- 
i in did ading in the heads; a € e 
ish, becom ordid-tan, somewhat spreading in the heads; corollas 2- on tub 
2 . long, the t t 6-8 mm. long, th s 5-6 mm. long; achenes oblongish, a little nar- 
rowed downward, strongly flattened, 5-6 mm. long, 2 mm. wide; panes 
Moist slopes and flats of mountains, thriving in aoe and along roads, Canadian and Boreal Zones rthern 
Wa ibiaston vena Me the Concate. Mountains north to British aay reece? and Alberta Beare: to abe Rocky yi Gaisstngaty 
Rl ya or ty: BF A Ait oe of the Rocky Mountains.” July—Au ug. Acco g to Cro t_(Vasi Pe mee Northw. 
955), specimens Bans of the Canadian border ‘‘vary i he vais ecti jou rs C. fol 
28. Cirsium péckii Henderson. Steen Mountain Thistle. Fig. 5929. 
Cirsium peckti Henderson, Madrofio 5: 97. 1939. 
lowish green, si _ below, branching above the middle, the stem stout, fistulous, 
ae in dried specimens brownish or shining and golden, sparsely loose- — with 
elongate, shining, translu sate multicellular hairs, nd ogg below. Basal leaves unknown 
cauline ‘es narrowly oblanceolate or elliptic-oblanceolate, becom oblong- Sait eolate abov e, 
to 2.5 dm. long and 5 cm. wide, parted or divided into as deltoid lobed segments, the lobes 
tipped by set or Vygis yellow spines; aves eaves narrowed below to a narro wly bordered, 
e 
ate 
scatiehion pubes nt on the upper aad lower sides es oo se ara 8 and veins or the 
: s cm. long. isphe! ge 
! eous and flattene e sie p 
straight, pale lavender, the corolla 2-3 cm. long, the tube 7-12 mm. long, the throat abou 
long, the lobes 7-8 mm. long; achen es light brown, Sapnagete a little whleaed upward, 6-7 mm 
long, ie mm. wide; pappus a little pe d, 2 cm. lon 
Moist soil and dry stream banks in sagebrush tam Tales Sonoran Zone; eastern ~— of the Steen 
and Pueblo Mountains, er County, Oregon. Type locality: Alvord Ranch, east base of Steen Mountains, 
Harney ppt June—Jul 
Cir: raetériens i. Macbride, Contr. Gray Herb. No. 53: 1918. Stems very leafy, arectnctd- 
faunaiiteas with a few pol (re Po shining, Nec Song hairs intermixed: cauline leaves oblong-elliptic, Dai 
ey into narrowly deltoid or linear, strongly spin eel pubese ent above get apace wl mt 
hai white-tomen ath i heads spi ole etree ag eo stem in the xia of the uppermost cat ine 
poem and Po mage subtended by —— reduced, bract- ike anon large, 5.5-7 cm. hi aly cs Hie invo mire 
rather den gray nulate-bow1- shaped; phyllaries loosely ascending, strai ak the outer an 
middle oie attenuate pe toa on tiff 5) spine, the atten the argin, The. inner flatten 
and somewhat curving and Svisied, eats scabridous below the slender. spi fer é tip; corolla whitish,” 3-3.5 em. 
long, the tube 1.5 cm. long, the throat 8 mm. long, the lobes 1 cm. long; pappus about m. long, light brown oe 
buff, copiously plumose from the base to the scarcely dilatate, barbellula te tip. Known nly from two collection 
made at Palo Alto, Santa Clara County, California, by J. W. Congdon in July, in 1897 and in 1901. 
29. Cirsium callilépis (Greene) agattes Fringed-bract Thistle. Fig. 5930. 
Carduus callilepis ea eee Proc. Acad. Phila. 1892: 358 
rae irsium callilepis Jepso: rip Mid. Calif. 507. 1901. 
var lilepis Jepson, Man. FI. Pl. Calif. 1164. 1925. 
Perennial herbs, aerial shoots arising from the see or branched, woody n of a 
slender or stout root, the new shoots developing from seeds om buds on the sits Rv re ading 
roots ; stems erect, generally rather slender, few-branched ate nt sely leafy, 2 dm. tall, a 
; : 2 i 
or rather strongly striate-angled, crispy-puberulent with elongate, davies tlular, shining hai 
mi rachnoid. Earliest Be» small, subentire, prickly-ciliate, narrowly elliptic, the 
abre hnoi belo to 4 dm. long 
eep dm ns den 
weak, the blade narrowed to a more or less spiny- cere ‘petiole vtike base, this base mid- 
rib both abo below crispy-puberulent or arachnoid ; lowest cauline leaves senitar but ae a 
pom as —— auriculate base, the middle cauline facto ons semi-amplexicaul with a 
enlarged, rounded, spiny, shortly rrent base; uppermost leaves much reduced fee 
posi tikes ich subglobose or broadly papeniiet. 2-4 cm. long, solitary or clustered on elongate. 
