WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 567 
1. DATURA L. THORN-APPLE. 
Rank, ill-smelling, annual or perennial herbs with coarse stems, alternate simple 
leaves, and large axillary solitary flowers; calyx with a long angled tube, often cir- 
cumscissile near the base; corolla funnelform, white to violet, with a plaited 5-lobed 
limb, the lobes abruptly acuminate; ovary 2-celled or falsely 4-celled; capsules large, 
prickly, 4-valved or opening irregularly. 
KEY TO THE SPECIES. 
Corolla 15 to 20 em. long; capsules rather fleshy, bursting irregu- 
larly....--2- 2 eee eee ee eee eee eee eee 1. D. meteloides. 
Corolla 10 cm. long or less; capsule dry, 4-valved. 
Leaves sinuate-pinnatifid; spines of the capsule long and 
stout, few.......-.-0-- eee eee eee eee eee eee eee eee 2. D. quercifolia. 
Leaves sinuately angled or toothed; spines short, slender, 
numerous. 
Corolla white; lower spines of capsules shorter........-... 3. D. stramonium. 
Corolla violet; spines of the capsules all alike......-...-- 4. D. tatula, 
1. Datura meteloides DC.; Dunal in DC. Prodr. 131: 544. 1852. 
Type Locauity: ‘In calidis Novae Hispaniae regionibus.”’ 
Rance: Colorado and western Texas to California and southward. 
New Mexico: Cedar Hill; San Ildefonso; Zuni; Albuquerque; Lake Valley; Mangas 
Springs; Kingston; Rio Frisco; Dog Spring; Organ Mountains; Mesilla; south of Ros- 
well; White Mountains. Dry hills and mesas, in the Lower and Upper Sonoran 
zones. 
A very handsome plant, bearing numerous large, pure white, rather heavily scented 
flowers. It is abundant on sandy mesas, especially along arroyos. 
2. Datura quercifolia H. B. K. Nov. Gen. & Sp. 3: 7. 1818. 
Typr Loca.ity: ‘‘Crescit locis temperatis Regni Mexicani prope Zelaya et Molino 
de Sarabia, alt. 930 hex.”’ 
RanGe: Texas and Arizona to Mexico. 
New Mexico: Santa Fe; Albuquerque; Glorieta; Fort Bayard; Mangas Springs; 
Mimbres; Mesilla Valley. Waste and cultivated ground. 
A not uncommon weed along ditch banks. 
3. Datura stramonium L. Sp. Pl. 179. 1753. 
Typr Locauity: ‘‘Habitat in America, nunc vulgaris per Europam.”’ 
Rance: Throughout eastern and southern North America; introduced in New 
Mexico. 
New Mexico: Fresnal (Wooton). Waste ground. 
4. Datura tatula L. Sp. Pl. ed. 2. 256. 1762. 
TyprE Locality: Not stated. 
Rance: Throughout the warmer parts of North America, widely introduced else- 
where. 
New Mexico: Farmington; Cedar Hill. Waste ground. 
Introduced into New Mexico from the East. 
2. NICOTIANA L. Tosacco. 
Clammy-pubescent or glabrous herbs or shrubs, with ample, alternate, entire or 
undulate leaves and terminal panicles of white or yellow flowers; calyx campanulate 
to tubular, 5-lobed; corolla funnelform or salverform, with an elongated tube; stamens 
included; capsule 2-celled, 2 to 4-valved from the apex; seeds small, very numerous. 
