Petra k, Die nordamerikanischen Arten der Gattung Cirsium. 461 
oblonga vel oblonga, compressa, fusca vel fusco-nigrescentia, 
nitida, 3 l / 2 — 4 mm longa, 2 mm lata. Bienne? Floret Junio 
— A u g u s t o. 
Synonyma: 
Gnicus Breweri Gray in Proc. Amer. Acad. X, p. 43 (1874). 
— Gray in Geol. Surv. Calif. Bot. I, p. 418 (1876). — Gray, Syn. 
Fl. N. Amer. II, p. 403 (1886). 
Carduus Breweri Greene in Proc. Acad. Nat. Sei. Philad. 1892, 
p. 363 (1893). 
Cirsium Breweri Jepson, Flor! West. Middle Calif. ed. 1, 
p. 507 (1901); ed. 2, p. 424 (1911). 
Distributio: In paludosis, pratis montanis humidis, 
secus rivulos Californiae centralis et borealis, imprimis in mon- 
tibus „Coast Range” dictis dispersum. 
1. Var. Wrangelii. 
Caulis erectus, a medio circiter vel apice tan- 
tum paniculato-ramosus, arachnoideo-tomentosus. 
Folia caulina inferiora utrinque subdense arach- 
noideo-tomentosa, canescentia, plus minusve 
decurrentia, ambitu oblonga vel oblongo- 
lanceolata, ad medium circiter remote s i - 
nuato-pinnatifida, laciniis profunde spi- 
noso-dentatis, dentibus divergentibus 1 a n - 
ceolatis vel triangularibus, margine spinuloso- 
ciliatis, spinis subvalidis 1 — 6 fnm longis terminatis; caulina 
superiora et suprema gradatim minora, ambitu lanceolata vel 
lineari-lanceolata, magis remote sinuato-pinnatifida, spinis vali- 
dioribus longioribusque armata. Capitula ovato-globosa 
vel globosa, cum flosculis 18 — 30 mm longa, 25 mm lata. 
Involucri parce arachnoidei vel fere glabres- 
c e n t i s foliola exteriora et media e basi ovato-oblonga 
a b r u p t i u s c u 1 e attenuata, dorso late vis- 
cido-carinata, spinis subvalidis stramineis, 
2 — 5 mm longis terminata, interiora et intima 
gradatim sed parum longiora, lineari-lanceolata, elongato-acu- 
minata apicem versus dorso plus minusve viscido-carinata, undu- 
lato-curvata. Corollae purpureae vel atropurpu- 
r e a e limbus ad medium circiter inaequaliter quinquefidus, 
laciniis anguste linearibus abruptiuscule acuminatis, a tubo vix 
distinctus, eoque subduplo fere longior. Achaenia matura nigres- 
centia, subnitida, 4 — 4 1 / 2 mm longa, 2 — 2 1 / 2 mm lata. 
Synonyma: 
Carduus marmornus Greene in schedis 1903/04. 
Cirsium Breweri ssp. Wrangelii Petrak in schedis 1911. 
Cirsium Breweri var. glutinosum Petrak in schedis 1913. 
Distributio: In paludosis, humidis Californiae centralis 
distr. Montercy County dispersum. 
Vidi e locis sequentibus: 
