WOOTON AND STANDLEY — FLORA OF NEW MEXICO. 471 



2. Hartmannia speciosa (Nutt.) Small, Bull. Torrey Club 23: 181. 1896. 

 Oenothera speciosa Nutt. Journ. Acad. Phila. 2: 119. 1821. 

 Type locality: "On the plains of Red River." 

 Range: Missouri and Kansas to New Mexico and Mexico. 

 New Mexico: Kingston (Metcalfe 1017). 



14. PACHYLOPHUS Spach. 



Cespitose, almost acaulescent, herbaceous perennials with rosettes of narrowly 

 oblanceolate, entii-e or pinnatifid, acute leaves, and large white flowers with long 

 hypanthium tubes; capsules basal, woody, doubly crested on the angles. 



key to the species. 



Pubescence fine, short, appreased 1. P. australis. 



Pubescence, coarse, long, spreading. 



Hypanthium, calyx, and fruit densely hirsute. 



Plants acaulescent; ridges of the fruit slightly tuberculate. 2. P. hirsutus. 

 Plants caulescent; ridges of the fruit with lobed, some- 

 what foliaceous crests 3. P. eximius. 



Hypanthium, calyx, and fruit with only a few scattered hairs 

 or glabrous. 

 Plants caulescent; capsules elongated conic-ovoid, with 



low ridges 4. P. caulescens. 



Plants acaulescent; capsules shortly conic-ovoid, with 



very thick ridges 5. P. macroglottis. 



1. Pachylophus australis Woot. & Standi. Contr. U. S. Nat. Herb. 16: 156. 1913. 

 Type locality: On the South Fork of Tularosa Creek, New Mexico. Type col- 

 lected by Wooton, July 31, 1897. 



Range: Known only from type locality. 



2. Pachylophus hirsutus Rydb. Bull. Torrey Club 31: 571. 1904. 

 Type locality: Georgetown, Colorado. 



Range: Colorado and Utah to New Mexico. 



New Mexico: Carrizo Mountains; Tunitcha Mountains; Shiprock; west of Santa 

 Fe; Santa Fe Canyon; Burro Mountains; White Mountains; Organ Mountains; San 

 Luis Mountains. Mountains and in river valleys. Upper Sonoran and Transition zones. 



3. Pachylophus eximius (A. Gray) Woot. & Standi. Contr. U. S. Nat. Herb. 16: 



157. 1913. 

 Oenothera eximia A. Gray, Mem. Amer. Acad. n. ser. 4: 45. 1849. 

 Pachylophus exiguus Rydb. Colo. Agr. Exp. Sta. Bull. 100: 246. 1906. 

 Type locality: Along Santa Fe Creek, New Mexico. Type collected by Fendler 

 (no. 228). 



Range: Colorado and New Mexico. 



New Mexico: Winsor Creek; Santa Fe Creek. Meadows, in the Transition Zone. 



4. Pachylophus caulescens Rydb. Bull. Torrey Club 31: 571. 1901. 

 Type locality: Palisades, Colorado. 



Range: Colorado and northern New Mexico. 



New Mexico : Mouth of Holy Ghost Creek {Standley). Mountains, in the Transition 

 Zone. 



5. Pachylophus macroglottis Rydb. Bull. Torrey Club 30: 259. 1903. 

 Type locality: Tributaries of Turkey Creek, Colorado. 



Range: Colorado and northern New Mexico. 



New Mexico: Cedar Hili; Chama; Dulce; Tierra Amarilla. Open hills, in the 

 Upper Sonoran and Transition zones. 



