482 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
1. Aulospermum purpureum (S. Wats.) Coult. & Rose, Contr. U. 8. Nat. Herb. 
7: 178. 1900. 
Cymopterus purpureus S. Wats. Amer. Nat. 7: 300. 1873. 
Type Locatity: New Mexico. Type collected by Palmer. 
Rance: Colorado and Utah to New Mexico and Arizona, 
New Mexico: Aztec; Fort Wingate; Stinking Lake. Upper Sonoran Zone. 
16. CYMOPTERUS Raf. 
Low (5 to 10 cm.) glabrous perennials from thick elongated roots; leaves usually 
exceeding the peduncles, twice or thrice pinnate, the leaflets oblong, incised; umbels 
with few unequal rays; flowers yellow; involucels conspicuous, exceeding the flow- 
ers; fruit oblong; carpels each with 3 or 4 wings, these thin at the margin and near 
the body; oil tubes several in the intervals, 4 to 8 on the commissural side. 
1. Cymopterus fendleri A. Gray, Mem. Amer. Acad. n. ser. 4: 56. 1849. 
TYPE Locauiry: Gravelly hills, Santa Fe, New Mexico. Type collected by Fend- 
ler (no. 274). 
Ranae: New Mexico to Colorado. 
New Mexico: Santa Fe; Sandia Mountains. Upper Sonoran Zone. ° 
17. PSEUDOCYMOPTERUS Coult. & Rose. 
Caulescent or almost acaulescent perennials, 30 or 40 cm. high or less, from per- 
ennial roots, with bipinnate leaves, mostly no involucre, and yellow or purple flowers 
in usually small or medium-sized umbels; calyx teeth evident; fruit oblong, glabrous; 
carpels with very prominent and acute (sometimes narrowly winged) dorsal and 
intermediate ribs and broad thickish lateral wings; oil tubes 1 to 4 in the intervals, 
2 to 8 on the commissural side. 
KEY TO THE SPECIES, 
Flowers purple....... 222.222.2002. o cee cece cece cece. 1, P. purpureus, 
Flowers yellow. 
Ultimate divisions of the leaves short, ovate or lanceolate; plants 
tall, stems usually solitary............................. 2. P. montanus, 
Ultimate divisions of the leaves linear or nearly so; plants tall 
or low; stems solitary or cespitose. 
Divisions of the leaves 18 to 60 mm. long, few; leaves twice 
compound; flowers pale yellow..................... 3. P. tenuifolius, 
Divisions of the leaves short, usually less than 15 mm. long, 
very numerous, crowded; leaves mostly thrice com- 
pound; flowers bright yellow. 
Basal leaves long, 20 to 25 em., very numerous; seg- 
ments usually sessile, with a pair of lobes at 
the base; umbels 15 mm. wide or less......... 4. P. filicinus. 
Basal leaves short, usually less than 15 cm. long, few; 
segments long-petioled; umbels usually more 
than 20 mm. broad........................... 5. P. multifidus. 
1. Pseudocymopterus purpureus (Coult. & Rose) Rydb. Bull. Torrey Club 883: 
147. 1906. 
Pseudocymopterus montanus purpureus Coult. & Rose, Rev. Umbell. 75. 1888. 
TYPE Locauity: Fort Humphreys, Arizona. 
Rance: Utah to Arizona and New Mexico. 
New Mexico: Burro Mountains; Bullards Peak; Mogollon Peak; Organ Mountains. 
Meadows and on cliffs, in the Transition Zone. 
