462 P e t r a k , Die nordamerikanischen Arten der Gattung Cirsium. 
California: Prope coloniam Ross 1834 leg D. Wrangel 
H. St. P. — Monterey County: Swamps near Hoyo leg. Boiander 
H. F. — Ibidem: Fort Bragg 8. — 16. VIII. 1912 Coli. Miss A. East- 
wood Nr. 1607 H. F. — Ibidem: Castroville VI. 1903 Coli A D. 
E. Eimer Nr. 4408 H. N. W. 
2. Var. canescens. 
Caulis erectus, subdense vel parce arachnoideus, sub- 
remote foliosus, a medio circiter plus m i - 
nusve ramosus, ramis subelongatis, poly- 
rar o t a n t u m monocephalis. Folia caulina inferiora 
et media supra parce arachnoidea vel fere 
glabrescentia, subtus parce arachnoideo- 
canescentia, breviter decurrentia, ambitu 
anguste lanceolata, elongato-attenuata, 
basin versus tantum sinuato-lobata, lobis 
late triangulär i-ovatis vel triangularibus, 
apice inaequaliter breviterque bidenta-tis, 
dentibus triangularibus abruptiuscule acuminatis vel subobtusis, 
spinis stramineis infirmis vel subvalidis 1 — 5 mm longis termi- 
natis; caulina superiora gradatim minora, lineari-lanceolata, 
spinis parum vel vix longioribus armata. Capitula in apice caulis 
et ramorum quasi racemose disposita, saepe 
2 — 3 subaggregata, subsessilia vel breviter 
pedunculata, ovato-oblonga vel ovata, cum 
floseulis 18 — 24 mm longa, 12 — 18 mm lata. Involucri parce 
arachnoidei vel fere glabrescentis foliola ex- 
teriora et media e basi ovato-oblonga lanceo- 
lata, abruptiuscule acuminata, dorso non 
vel parum viscido-carinata, spinulis stra- 
mineis infirmis 1 — 3 mm longis, erecto- 
patentibus terminata; interiora et intima gradatim 
longiora lineari-lanceolata^ elongato-acuminata, apice subscariosa. 
Corollae purpureae vel roseae limbus ad medium circiter inaequa- 
liter quinquefidus eoque subduplo longior. 
Distributio: In pratis montanis humidis, ut videtur 
imprimis in Californiae borealis distr. Siskiyou County. 
Vidi e locis sequentibus: 
California: Siskiyou County; Sisson, 17. VIII. 1912 
Coli. Miss A. Eastwood Nr. 1199 H. F. - — Ibidem; in bushy meadows 
alt. ca. 1000 m, 14. VIII. 1903 Coli. E. B. Copeland in Bakers 
PI. Pac. Coast Nr. 3934 H. N. W., H. L. — Mount Eddy, 30. VIII. 
1912 Coli. Miss A. Eastwood Nr. 2085 H. L. 
3. Var. lanosissimum. 
Caulis erectus, densissime albo-tomentosus, plerumque 
apice tantum paniculato-ramosus. Folia caulina 
inferiora et media utrinque dense arachnoideo- 
tomentosa, albida, basi late semiauriculato-semiamplexi- 
cauli sessilia, fere omnino decurrentia, ambitu oblonga 
