WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 223 
1. Tripterocalyx micranthus (Torr.) Hook. Journ. Bot. Kew Misc. 5: 261. 1853. 
Abronia micrantha Torr. in Frém. Rep. Exped. Rocky Mount. 96. 1845. 
Type Locauiry: ‘‘Near the mouth of Sweet Water river.” 
Rance: Montana and Nebraska to Nevada and New Mexico. 
New Mexico« Albuquerque; opposite San Juan. Plains and low hills, in the 
Upper Sonoran Zone. , 
2. Tripterocalyx cyclopterus (A. Gray) Standley, Contr. U. 8. Nat. Herb. 12: 
329. 1909. 
Abronia cycloptera A. Gray, Amer. Journ. Sci. II. 15: 319. 1853. 
Abronia carnea Greene, Pittonia 3: 343. 1898. 
TypE LocALity: On the Rio Grande, New Mexico. 
Rance: Western Texas and southern New Mexico to Chihuahua. 
New Mexico: Near Albuquerque; Pecos River; Chavez; Rincon; Deming; Mesilla 
Valley. Sandy fields and mesas, in the Lower Sonoran Zone. 
The type of A. carnea was collected near Las Cruces (Wooton 59). 
3. Tripterocalyx wootoni Standley, Contr. U. S. Nat. Herb. 12: 329. 1909. 
Type Locauity: Near Ojo Caliente, Zuni Reservation, New Mexico. Type col- 
lected by Wooton, July 20, 1906. 
Rance: Northwestern New Mexico and northeastern Arizona. 
New Mexico: Western parts of Valencia, McKinley, and San Juan counties. Dry 
plains and foothills, in the Upper Sonoran Zone. 
7. ABRONIA Juss. SAND VERBENA. 
Annual or perennial herbs with erect or prostrate, glabrous or pubescent stems; 
leaves opposite, petiolate; flowers in a head surrounded by numerous or few distinct 
thin bracts; perianth white or red, with an elongated tube and a rather narrow 5-lobed 
limb; stamens 3 to 5, included; fruit leathery, with 3 to 5 wings or sometimes merely 
lobed and not winged. 
KEY TO THE SPECIES. 
Plants nearly acaulescent, with a short thick, caudex; leaves nar- 
rowly oblong or linear; perennial.................-------- 1. A. bigelovit. 
Plants with long stems with conspicuous internodes; leaves 
broader; perennials or annuals. 
Perennials; bracts ovate or oblong; stems erect or spreading, 
never prostrate; perianth white. 
Fruit biturbinate, tapering at both ends............... 2. A. fragrans. 
Fruit turbinate, not tapering above. 
Stems densely viscid-hirsute; bracts 10 to 15 mm. 
long......--.---------02- 2-022 3. A. fendlert. 
Stems only puberulent or almost glabrous; bracts 8 
mm. long or less... ....-.22.2-2--.2-2---45 4. A. ramosa. 
Annuals; bracts lanceolate; stems prostrate; perianth purplish 
red. 
Leaves mostly ovate, rounded or broadly cuneate at the 
base; seeds lanceolate, 2 to 2.46 mm. long......... 5. A. torreyi. 
Leaves narrowly lanceolate, narrowed at the base; seeds 
ovate, 1.5 mm. long.................2--0-0 eee ... 6. A. angustifolia. 
1. Abronia bigelovii Heimerl, Smiths. Misc. Coll. 53: 197. 1908. 
TypE Locatity: Near Galisteo, New Mexico. Type collected by Bigelow. 
RANGE: Known only from type locality, in the Upper Sonoran Zone. 
