COULTER AND ROSE—NORTH AMERICAN UMBELLIFERAE. 107 
Specimens examined: 
Cotorapo: Castle Rock, near Golden, altitude 1,800 meters, Patterson 87, July- 
September, 1885; near Morrison, Alice Eastwood, in 1891; near Golden, 
Crandall, April 30, 1892; Boulder County, Marie Holzinger, August, 1892; 
mountains near Morrison, altitude 1,800 meters, Bethel, May, 1895, and 
Octcber, 1897; South Table Mountain, near Golden, Knowlton 76, June 17, 
1896. 
New Mexico: Socorro, G. R. Vasey, May, 1881. 
2, Aletes humilis C. & R., sp. nov. 
Cespitose, with peduncles much shorter than the leaves, 2 to 5 em. 
long; petioles slender, longer than the blade; leaflets generally 5, 
entire to few-toothed, slightly scabrous on the margin, linear to obo- 
rate; rays 4 to 6, rather weak and spreading, 2.5 to 3 em. long; pedi- 
cels very short: involucels of linear distinct bractle ‘ts; fruit ovate, 3 
mm. long. 
Type locality, Dale Creek, Larimer County, Colorado; collected by 
George FE. Osterhout, no. 6, July 19, 1899; type in U.S. Nat. Herb. 
Only known from type locality. 
Mr. Osterhout also recognized this plant as a new species, but has kindly permitted 
us to publish it. 
3. Aletes (?) macdougali C. & R., sp. nov. 
With much the habit and foliage of A. aeaudis; leaves narrow in 
outline, pinnate; leaflets few, ovate, few-toothed; peduncles longer 
than the leaves, 1 to 1.5 dm. high; rays 4 to 6,5 to 10mm. long; ped- 
icels 2 to 8 mm. long; involucels of few linear distinct bractlets; 
flowers yellow; fruit (at least at first flattened laterally) narrowly 
oblong, 4 mm. long, the lateral ribs (and sometimes the others) becom- 
ing winged; seed nearly terete in cross section; oil tubes solitary in 
the intervals. 
Type locality, on Berry’s trail to the Grand Canyon of the Colorado, 
Arizona; collected by 2. 7. MacDougal, no. 192, June 28, 1898; type 
in U. S. Nat. Herb. 
Only known from type locality. 
This species differs from the other two in having the ribs sometimes (perhaps 
always) winged. The material, however, is too scanty to be positive as to its generic 
position. 
4, Aletes (/) davidsoni C. & R.. sp. nov. 
Stems (and leaves) numerous, crowning more or less thickened 
elongated roots; short caulescent, 1 to 8 dm. high, much branched, 
glabrous; leaves ternate, the central lobe again ternate, all then pin- 
nate; leaflets ovate in outline, 2 or 3-cleft into linear acute lobes, 
or the lower ones again cleft, while the upper ones sometimes become 
entire; peduncles 5 to 8 cm. long, glabrous except some puberulence 
at the top; rays few (6 to 10), nearly equal; pedicels 2 to 3 mm. long; 
