574 RypDBERG: Rocky MouNTAIN FLORA 
leaflets with lanceolate, acuminate lobes and smaller fruit about 
4 mm. long. 
Cotorapo: Near Morrison, 1889, Greene (type, in mature fruit, 
in herb. Columbia University); Golden, 1892, Crandall (in flower); 
Lower Boulder Cafion, 1901, Osterhout 2433 (in young fruit). 
“ Phellopterus camporum sp. nov. 
Perennial with a deep-seated thick tap-root ; leaves twice to 
thrice pinnatifid, petioled, pale-green ; petioles 4—7 cm. long; ulti- 
mate divisions oblong, obtusish, 3-6 mm. long; peduncles 5-20 
cm. long, usually exceeding the leaves; involucres of white hya- 
line bracts ; branches of umbel- about 2 cm. long in fruit ; bractlets 
orbicular, 5-7 mm. long, with greenish center and broad white 
hyaline border, 7~13 nerved ; pedicels short, in fruit only 3-5 mm. 
long ; flowers white ; fruit with the very broad wings 10-13 mm. 
long and 9-11 mm. wide; oil-tubes 3-4 in the intervals, 6-7 on 
the commissure ; seed flattened with broadly concave face. 
The specimens has been determined as P. purpurascens East- 
woodiae, but it is evidently well distinct from that as shown by 4 
duplicate of the type in the herbarium of the N. Y. Botanical 
Garden; the bractlets are larger and many-nerved, the flowers 
white and the fruit is longer than in the variety mentioned. It 
grows on dry mesas at an altitude of 1,500—16,00 m, 
- Cotorapo: Pueblo, 1900, Rydberg & Vreeland 5825 (tyP® 
in flower) and 582¢ (in fruit). 
’ Pseudocymopterus montanus mutifidus var. nov./ 
Low, about 2 dm. high ; lower leaflets broadly rhombic in out 
line, thrice pinnate; the upper twice pinnate ; ultimate divisions 
linear ; fruit smaller and more rounded. 
On high mountains, at an altitude of 2,700—3,600 m. 
“New Mexico: Range between Sapello and Pecos rivers, 190 
Cockerell. 
Cororapo: Ironton, 1899, C. C. Curtis; Cumberland Basi, 
1898, Baker, Earle & Tracy 619; West Indian Creek, 19: 
Rydberg & Vreeland 5798 ; Ironton Park, Underwood & Selly 
358. | 
‘Pseudocymopterus aletifolius sp. nov. 
Densely cespitose acaulescent glabrous perennial with a er 
thick root and short caudex, covered by the broad striate bases 
