WOOTON AND STANDLEY—FLORA OF NEW MEXICO, 519 
9. Ipomoea lindheimeri A. Gray, Syn. Fl. 2’: 210. 1878. 
Pharbitis indheimert Small, Fl. Southeast. U.S. 964. 1903. 
TypE LocALITy: Western Texas. 
Rance: Western Texas and southern New Mexico. 
New Mexico: Guadalupe Mountains; west of Hope. Dry hills, in the Upper 
Sonoran Zone. 
5. CONVOLVULUS L. BINDWEED. 
Annual or perennial twining herbs with petiolate, hastate or cordate leaves and 
solitary or clustered, axillary, white or pink flowers; calyx naked or subtended by 
bracts; sepals nearly equal or the outer one larger; corolla funnelform, the limb entire 
or somewhat 5-angled; stamens included; ovary 1 or 2-celled; capsules globose or 
nearly so, 2 to 4-valved; seeds glabrous. 
KEY TO THE SPECIES. 
Bracts large, near the calyx and inclosing it; flowers white............ 1. C. sepium. 
Bracts small, remote from the calyx; flowers pinkish. 
Plants nearly glabrous, sparingly pilose; leaf blades hastate, 
otherwise entire........2.... 222. e cece ee eee eee eee eens 2. C. arvensis. 
Plants canescent; blades linear or narrowly oblong, with deeply 
cleft basal lobes..........22. 22-2. eee eee eee eee eee eee 3. C. incanus. 
1. Convolvulus sepium L. Sp. Pl. 153. 1753. BINDWEED. 
TypE LocaLity: ‘‘Habitat in Europae sepibus.”’ 
Rance: British America to New Mexico and North Carolina; in New Mexico 
apparently introduced. 
New Mexico: Farmington; Abiquiu; Mesilla Valley. 
Not uncommon as a weed in cultivated fields. 
2. Convolvulus arvensis L. Sp. Pl. 153. 1753. 
Convolvulus ambigens House, Bull. Torrey Club 32: 139. 1905. 
Typr Locauity: ‘‘Habitat in Europae agris.”’ 
RanGeE: Of wide occurrence in North America, in New Mexico introduced from the 
east or from Europe. 
New Mexico: Farmington; Cedar Hill; Raton; Santa Fe; Chama; Clovis; Kingston; 
Silver City; Rio Gila; Mesilla Valley. 
This is a very variable species, but it seems ill advised to attempt to separate any 
of the forms. In New Mexico it is common in some localities in cultivated fields, 
where it is evidently introduced, as it doubtless is everywhere in the Rocky Mountain 
region. The amount of variation among the different forms is very slight, and every 
possible intermediate can be found between them. Convolvulus ambigens seems to 
differ in no way from numerous European specimens of C. arvensis in the U. 8. National 
Herbarium. 
3. Convolvulus incanus Vahl, Symb. Bot. 3: 23. 1794. 
Type Locatity: ‘“‘America.”’ 
Rance: Colorado and Kansas to Texas and Mexico. 
New Mexico: Albert; Tucumcari; Las Vegas; Clayton; Frisco; Socorro; Mangas 
Springs; Kingston; San Luis Mountains; Carrizalillo Mountains; Organ Mountains; 
Gray; Roswell; Queen. Dry hills and plains, in the Upper Sonoran Zone. 
119. POLEMONIACEAE. Phlox Family. 
Annual or perennial herbs or low shrubs, never twining, with opposite or alternate, 
simple or compound leaves, and regular 5-merous flowers; calyx gamosepalous, 5-lobed, 
persistent, imbricated; corolla convolute in the bud; stamens 5, equally or unequally 
