WOOTON AND STANDLEY FLOKA OF NEW MEXICO. 433 



Lobes of the leaves more numerous, -1 to many on each 

 side, the leaves never entire; plants not cespi- 

 tose. 

 Plants stout, widely spreading; flowers of medium 



size for the genus, numerous 4 . JV. multijlora. 



Plants tall and slender, not spreading; flowers 



small for the genus, few 5. JV. procera. 



Leaves sinuate-dentate, not pinnatitid. 



Flowers very large, petals about 6 cm. long; filaments not di- 

 lated 6. JV. decapetala. 



Flowers small, petals 2 to 3 cm. long; outer filaments usually 

 dilated. 

 Cauline leaves all sessile, not cuneate at the base. 



Petals 2 cm. long; flowers crowded at the top of the 

 stem; leaves large, 5 to 10 cm. long, long-acumi- 

 nate 7. JV. rusbyi. 



Petals about 3 cm. long; flowers mostly solitary; cauline 



leaves short and small, acute 8. JV. strictissima 



Cauline leaves, at least the lower ones, cuneate at the base 

 or tapering into a petiole. 



Flowers bright yellow 9. JV. speciosa. 



Flowers pale yellow. 



Involucral bracts narrow, entire 10. JV. nuda. 



Involucral bracts laciniately lobed, one sepal oc- 

 casionally so 11. JV. stricta. 



1. Nuttallia gypsea Woot. & Standi. Contr. U. S. Nat. Herb. 16: 149. 1913. 

 Type locality: On pure gypsum, near Lakewood, New Mexico. Type collected 



by \Yooton, August 6, 1909. 



Range: Southeastern New Mexico. 



New Mexico: Near Lakewood; 35 miles south of Torrance; Roswell. Gypsum Bail. 



2. Nuttallia laciniata (Rydb.) Woot. & Standi. Contr. U. S. Nat. Herb. 16: 1,50. 



1913. 



Touterea laciniata Rydb. Bull. Torrey Club 31: 565. 1904. 



Type locality: Pagosa Springs, Colorado. 



Range: Southwestern Colorado, western New Mexico, and probably Utah and Ari- 

 zona. 



New Mexico: Gallup; McCarthy Station; above Chamita; Zuni. Upper Sonoran 

 and Transition zones. 



3. Nuttallia perennis (Wooton) Cockerell, Trans. Amer. Ent. Soc. 32: 300. 1906. 

 Mentzelia perennis Wooton, Bull. Torrey Club 25: 260. L898. 



llcsperaster perennis Cockerell, Torreya 1: L43. L901. 



Touterea perennis Rydb. Bull. Torrey Club 30: 277. L903. 



Type locality: En gypseous soil at Round Mountain, half way between Tularoei 

 and the Mescalero Agency, White Mountains, New Mexico. Type collected by 

 Wooton (no. L84). 



Range: Known only from the type locality, in (he I pper Sonoran Zone, 



4. Nuttallia multiflora | \ui 1. 1 Greer 1:210. L908. 

 Bartonia mutyflora Nutt. Journ. lead. Phila. II. 1: I s " L848. 

 Mi)it:iliii innliijliini A. Gray, Mem. Aj 849. 

 Touterea multiflora Rydb. Bull. Torrey Club 30: 277. I 



Type locality: Sandy hills along the borders of tli<- Rio del Norte, Ban 

 New Mexico. Type collected by Gambel. 



52576°— 15 28 



