1278 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Calyx only slightly if at all accrescent. 

 Corolla broadly campanulate, 5-angulate or shallowly lobate. 



11. BRACHISTUS. 

 Corolla subrotate, cleft to the middle or more deeply. 



12. BASSOVIA. 



1. NICOTIANA L. Sp. PI. 180. 1753. 



Several herbaceous species occur in Mexico. Best known among them, of 

 course, is the tobacco ("tabaco") plant, Nicotiana tabacum L. 



1. Nicotiana glauca Graham, Edinburgh Phil. Journ. 1828: 174. 1828. 



Sonora to Tamaulipas and Oaxaca. Western Texas to southern California; 

 native of Argentina and Uruguay, but thoroughly naturalized in some parts of 

 North America. 



Glabrous shrub or small tree, 6 meters high or less; leaves long-petiolate, 

 lance-oblong to broadly ovate, 5 to 17 cm. long, acute or obtuse, entire, glau- 

 cous ; flowers greenish white, in lax terminal panicles ; calyx tubular-campanu- 

 late, 12 mm. long, 5-dentate ; corolla tubular, about 4 cm. long, villosulous, with 

 narrow limb ; fruit a 2-celled capsule, 1 to 1.5 cm. long. " Virginio " (Chihuahua, 

 Durango) ; "gigante" (Aguascalientes, Sinaloa, San Luis Potosf, Texas); 

 "tabaquillo" (Oaxaca, Mexico); " tronadora " (Chihuahua, Guanajuato, 

 Texas); "mostaza months" (Oaxaca); "Don .Juan" (Sonora); " lengua de 

 buey" (Sinaloa); "marihuana" (Sinaloa, Sonora); "arbol de tabaco" (Du- 

 rango) ; "tabaco cimarron" (Mexico) ; " buena moza " (Quer6taro) ; " tepozan 

 extranjero" (Quer^taro) ; "tabaco amarillo" (Jalisco); " gretaiia " (Oaxaca, 

 Reko) ; " tabacSn," " tacote," "palo virgin" (Durango, Patoni) ; " coneton " 

 (Texas); "palo virgen," " Marquiana," " hierba del gigante." 



This plant is abundant in some parts of ]Mexico. It is reputed to be very 

 poisonous. The leaves are often applied as poultices to relieve pain, especially 

 headache. 



2. JUANULLOA Ruiz & Pav. Fl. Peruv. Chil. Prodr. 27. 1794. 



1. JuanuUoa mexicana (Schlecht.) Miers, Ann. Mag. Nat. Hist. 4: 188. 1849. 



Laureria mexicana Schlecht. Linnaea 8: 513. 1833. 



JuanuUoa aurantiaca Otto & Dietr. Allg. Gartenz. 12: 265. 1844. 



JuanuUoa Jiookeriana Miers, Ann. Mag. Nat. Hist. 4: 189. 1849. 



JuanuUoa eUiptica Ruiz & Pav.; Dunal in DC. Prodr. IS^: 530. 1852. 



Veracruz, Oaxaca, and Chiapas; type from Hacienda de la Laguna, Vera- 

 cruz. 



Shrub, usually epiphytic ; leaves short-petiolate, elliptic to ovate, 6 to 22 cm. 

 long, rounded to acute at apex, acute to rounded at base, glabrous above, stel- 

 iate-puberulent or tomentose beneath, entire; flowers in few-flowered long- 

 pedunclate cymes; calyx 2.5 to 3.5 cm. long, cleft into 5 oblong-lanceolate lobes, 

 stellate-tomentulose ; corolla tubular, 4 to 4.5 cm. long, orange or reddish ; fruit 

 baccate. 



3. OESTRUM L. Sp. PI. 191. 1753. 



Shrubs or small trees; leaves petiolate, entire; flowers whitish, yellowish, 

 red, or purple, in cymes ; calyx 5-lobate or 5-dentate ; corolla salverform or 

 funnelform, with long tube, the limb with 5 usually spreading lobes; stamens 

 included, the filaments filiform, often appendaged ; fruit a 2-celled berry. 



