480 CONTRIBUTIONS FROM THE NATIONAL HEEBAEIUM. 



Type locality: Not stated. 



Range: British America to California and Mexico; also in Europe. 



New Mexico: Zuui; Farmington; Silver City; Mogollon Mountains; Fort Bayard; 

 Dog Spring; White Mountains; Carrizozo; Roswell. Edge of streams, in the Tran- 

 sition and Canadian zones. 



10. LIGTJSTICTJM L. 



Glabrous perennial from a thickened cormlike base; stems a meter high or less, 

 with large, decompound, dark green leaves and a large terminal umbel of white 

 flowers; calyx teeth small or obsolete; fruit oblong-ovoid, 6 to 7 mm. long, with rather 

 prominent mnged ribs; oil tubes 4 to 6 in the intervals, 8 to 10 on the commissural 

 side. 



1. Ligusticum porteri Coult. & Rose, Rev. Umbell. 86. 1888. Chuchupate. 



Type locality: "Head waters of the Platte," Colorado. 



Range: Wyoming to Arizona and New Mexico. 



New Mexico: Sandia Mountains; Tunitcha Mountains; Sierra Grande; Santa Fe 

 and Las Vegas mountains; Hillsboro Peak; Sawyers Peak; Mogollon Mountains; White 

 and Sacramento mountains. Damp woods. Transition to Hudsonian Zone. 



11. OREOXIS Raf. 



Cespitose alpine perennials \\dth pinnate basal leaves having narrow segments; 

 umbels compact, more or less headlike; calyx teeth prominent; fruit globose, slightly 

 flattened laterally; caipels with thick equal corky prominent ribs; oil tubes 1 to 3 in 

 the narrow intervals. 



KEY to the species. 



Bracts of involucels linear, entire 1. 0. humilis. 



Bracts of involucels cuneate, toothed 2. 0. bakcri. 



1. Oreoxis humilis Raf. Bull. Bot. Seringe 217. 1830. 

 Type locality: "Rocky Mountains." 



Range: Colorado and northern New Mexico. 



New Mexico: Top of Las Vegas Range (Cockerell). High mountain meadows, in 

 the Arctic-Alpine Zone. 



2. Oreoxis bakeri Coult. & Rose, Contr. U. S. Nat. Herb. 7: 144. 1900. 

 Type locality: Mountains near Pagosa Peak, southern Colorado. 

 Range: Southern Colorado and northern New Mexico. 



New Mexico: Pecos Baldy (Standley 4318). Meadows in the mountains, Arctic- 

 Alpine Zone. 



12. CONIOSELINUM Hoffm. 



Glabrous perennial 60 to 90 cm. high, -with often large leaves, these twice or thrice 

 ternate, then once or twice pinnate, or twice pinnate, or simply pinnately compound; 

 leaflets laciniately pinnatifid; umbels with numerous rays, involucellate with linear 

 elongated bractlets; calyx teeth obsolete; fruit oblong, glabrous, about 6 mm. long; 

 oil tubes usually 1 in the dorsal interval and 2 in the lateral, 2 to 4 in the commis- 

 sural side; ribs prominent, the laterals winged. 



1. Conioselmura scopuloruin (A. Gray) Coult. & Rose, Contr. U. S. Nat. Herb. 7: 

 151. 1900. 



Ligusticum scopulorum A. Gray, Proc. Amer. Acad. 7: 347. 1868. 



Type locality: Santa Antonita, New Mexico. 



Range: Oregon to Arizona and New Mexico. 



New Mexico: Santa Antonita; Chusca Mountains; Mogollon Mountains; Copper 

 Canyon. Mountains, in the Transition Zone. 



