470 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



New Mexico: Santa Fe and Las Vegas mountains; White Mountains; West Fork 

 of the Gila; James Canyon; Chama. Damp meadows and along streams, in the 

 Transition Zone. 



A common plant in the mountains in the Transition Zone. It grows usually on 

 moist open slopes, but sometimes along streams. Seldom or never does it exceed a 

 meter in height, and the stems are almost invariably simple. The type collection 

 was distributed as 0. slrigosa Rydb., but that is a plant with much larger flowers and 

 different pubescence. 



3. Oenothera irrigua Woot. & Standi. Contr. U. S. Nat. Herb. 16: 155. 1913. 

 Type locality: Mesilla Valley, Dona Ana County, New Mexico. Type collected 



by Wooton and Standley, June, 1906. 



Range: New Mexico. 



New Mexico: Mesilla Valley; Farmington; Albuquerque; Shiprock. River 

 valleys, usually in wet ground, in the Lower and Upper Sonoran zones. 



4. Oenothera hookeri Torr. & Gray, Fl. N. Amer. 1: 493. 1840. 

 Oenothera biennis hirsutissima A. Gray, Mem. Amer. Acad. n. ser. 4: 43. 1849. 

 Onagra hookeri Small, Bull. Torrey Club 23: 171. 1896. 



Type locality: "California." 



Range: Rocky mountains, west to the Pacific coast, south into Mexico. 



New Mexico: Pecos; Chama; Farmington; Santa Fe Canyon; Ramah; Belen; 

 Kingston; Fort Bayard; Mesilla Valley; Roswell; Capitan Mountains; Wbite and 

 Sacramento mountains. Transition Zone. 



12. RAIMANNIA Rose. 



Diffusely branched biennial 20 to 30 cm. high, with alternate oblanceolate sinuate- 

 toothed leaves, the lowest almost lyrate; flowers of medium size, yellow; seeds not 

 prismatic-angled. 



1. Raimannia raexicana (Spach) Woot. & Standi. 



Oenothera mexicana Spach, Nouv. Ann. Mus. Hist. Nat. 4: 347. 1835. 



Oenothera sinuata hirsuta Torr. & Gray, Fl. N. Amer. 1: 494. 1840. 



Oenothera laciniata mexicana Small, Bull. Torrey Club 23: 173. 1896. 



Type locality: TexaB. 



Range: Nebraska to New Mexico, Texas, and Mexico. 



New Mexico: Mouth of Mora River; Burro Mountains; Mogollon Mountains; 

 White Mountains. Open slopes, in the Transition Zone. 



13. HARTMANNIA Spach. 



Slender branching herbs 20 to 40 cm. high, with medium-sized rose purple or large 

 white flowers and sinuate or almost lyrate leaves; resembling superficially species of 

 Anogra, but with stamens of different lengths and the seeds clustered on slender 

 funicles. 



key to the species. 



Petals less than 20 mm. long, rose purple or pink; body of the capsule 



shorter than the pedicel-like base 1. H. rosea. 



Petals more than 20 mm. long, white turning pink; capsule without a 



pedicel-like base 2. H. speciosa. 



1. Hartmannia rosea (Ait.) Don in Sweet, Hort. Brit. ed. 3. 236. 1839. 



Oenothera rosea Ait. Hort. Kew. 2: 3. 1789. 



Type locality: Peru. 



Range: Texas to New Mexico and southward; also in South America. 



New Mexico: Clayton (Bartlett). Plains and prairies, in the Lower and Upper 

 Sonoran zones. 



