500 CONTRIBUTIONS FEOM THE NATIONAL HEEBAEIUM. 



KEY TO THE SPECIES. 



Inflorescence loosely paniculate; leaves with cartilaginous white 



margins; petals 12 mm. long or less 1. F. paniculata. 



Inflorescence a dense leafy thyrse; leaves not margined; petals more 

 than 12 mm. long. 



Leaves scabroiis-puberulent, conspicuously veined 2. F. venosa. 



Leaves glabrous, not conspicuously veined. 



Sepals linear, much exceeding the petals 3. F. stenosepala. 



Sepals linear-lanceolate, scarcely equaling the petals 4. F. speciosa. 



1. Frasera paniculata Torr. U. S. Rep. Expl. Miss. Pacif. 4: 126. 1856. 

 Type locality: Sand bluffs, Inscription Rock, New Mexico. 

 Range: Arizona and New Mexico. 



We have seen no further specimens of this plant from New Mexico and only a few 

 from Arizona; apparently it is very rare. The type was collected by Bigelow in 1853. 



2. Frasera venosa Greene, Pittonia 4: 185. 1900. 

 Frasera speciosa scabra Jones, Zee 4: 277. 1893. 

 Frasera scabra Rydb. Bull. Torrey Club 33: 149. 1906. 



Type locality: Hills near Santa Rita del Cobre, New Mexico. Type collected by 

 Greene in 1880. 



Range: Colorado to Arizona and New Mexico. 



New Mexico: Tunitcha Mountains; Sierra Grande; Kingston; West Fork of the 

 Gila; Santa Rita; White Mountains. Mountains, in the Transition Zone. 



The Sierra Grande specimen has longer sepals than our others, and comes from well 

 outside the usual range of the species. 



3. Frasera stenosepala Rydb. Bull. Torrey Club 33: 149. 1906. 

 Frasera speciosa stenosepala Rydb. Bull. Torrey Club 31: 632. 1904. 

 Type locality: Foothills, Larimer County, Colorado. 



Range: Wyoming to northern New Mexico. 



Nev/ Mexico: Santa Fe and Las Vegas moimtains. Wet meadows and along 

 streams, in the Transition and Canadian zones. 



4. Frasera speciosa Dougl.; Griseb. in Hook. FI. Bor. Amer. 2: 66. pi. 153. 1838. 

 Type locality: "On the low hills near Spokan and Salmon Rivers and subalpine 



parts of the Blue Mountains, near the Kooskooka River." 



Range: Oregon and South Dakota to California and New Mexico. 



New Mexico: Chama; White and Sacramento mountains. Wet ground in the 



mountains, in the Transition and Canadian zones. 



5. SWERTIA L. 



Simple-stemmed herbaceous perennial 20 to 30 cm. high, with opposite or some- 

 times alternate leaves, at least the lower tapering into petioles; flowers 5-merous or 

 4-merous, dark blue; sepals subulate-lanceolate, about hah as long as the petals; 

 corolla rotate, the lobes about 1 cm. long; glands orbicular, the appendages 10 or fewer; 

 capsules ovoid, the seeds lenticular, winged. 



1. Swertia palustris A. Nels. Bull. Torrey Club 28: 227. 1901. 



Type locality: Nashs Fork, Wyoming. 



Range: Wyoming to northern New Mexico. 



New Mexico: Taos Mountains; Santa Fe and Las Vegas mountains; Costilla Valley. 

 Bogs in the high mountains, in the Hudsonian and Arctic-Alpine zones. 



