PLANTS FROM NORTH DAKOTA 289 
taller plants, 20-30 cm. high, the former having leaves less than 
2 cm. long and 5-8 mm. wide, not triple-nerved, and pistillate 
involucres 7-8 mm. high, the latter having stolons 5-8 cm. long, 
basal leaves large, 3 cm. long and 13 mm. wide, triple-nerved, and 
3-7 heads, 1 cm. high, on pedicels 5-20 mm. long; and A. Holmi 
Greene has thin, obtuse, rosulate leaves with a peculiar, fine, 
glistening indument. 
Crepis dakotana sp. nov. 
Perennis. Caulis scaposus vel foliis 1 vel 2 anguste linearibus, 
bracteis haud dissimilibus subscaposus, glaber vel in parte superiore 
puberulentus, pedunculis sparsim glanduloso-hispidis 2-6 dm. altus. 
Folia rosulata, oblanceolata vel elliptica vel oblonga vel oblongo- 
spatulata, acuta vel obtusa, integra, repanda, inaequaliter dentata 
vel runcinata, una cum petiolo alato qui saepe laminae aequalis 
est vel longior 5-25 cm. longa, 1-4 cm. lata, omnino glabra. Ca- 
pitula pauca, in caule eodem 2-5, longipedunculata, magnopere 
florifera. Involucra 10-12 mm. alta, glanduloso-hispida, atra. 
Bracteae externae breves, paucae (circiter 8), serierum 1 vel 2, 
lanceolatae. Bracteae internae longae, circiter 15, series unius, 
lineares. Achenia de basi apicem versus angustata, 4 mm. longa, 
striata, obscure fusca vel subatra. Pappus albus, mollis, achenio 
aequalis vel plerumque longior. 
Perennial. Stem scapose or subscapose (then with 1 or 2 
narrowly linear, bract-like leaves), glabrous or puberulent in its 
upper part with sparingly glandular-hispid peduncles, 2-6 dm. 
high. Leaves rosulate, oblanceolate or elliptic or oblong or oblong- 
spatulate, acute or obtuse, entire, repand, irregularly dentate or 
runcinate, 5-25 cm. long, including the winged petiole which 
is often as long or longer than the leaf blade, 1-4 cm. wide, entirely 
glabrous. Heads few, 2-5 on the same stem, long-peduncled, many 
flowered. Involucres 10-12 mm. high, glandular-hispid, dark. 
Outer bracts short, few (about 8), in 1 or 2 rows, lanceolate. Inner 
bracts long, about 15, in 1 row, linear. Achenes gradually tapering 
from base to apex, 4 mm. long, striate, dark brown or almost 
black. Pappus white, soft, as long as the achene or usually longer. 
This species differs from C. perplexa Rydb. and C. runcinata 
T. & G. which have more or less pubescent or hirsute involucres 
and leaves subsessile or with short, winged petioles; from C. 
riparia A, Nels. which has obovate, hairy leaves, glandular-hispid 
