102 POLEMONIALES 
5. Cryptanthe. 769. 
Nutlets unlike, 3 muricate and 1 smooth and shining. 
1. C. crassisepala. 
Nutlets alike, all smooth and shining. 2. C. fendleri. 
1. Cryptanthe crassisepala (T. & G.) Greene. 
In dry soil in the northwestern part of the state. Belmont; Deuel 
County; Hat Creek Basin; Thedford. 
2. Cryptanthe fendleri (A. Gray.) Greene. 
On high dry plains and in the foot-hills and bad-lands, in the north- 
western part of the state. Banner County; Harrison; Hat Creek 
Basin; Sheridan County; Thedford. 
6. Oreocarya. 770. 
Corolla tube about equal to the calyx lobes, not exserted. 
Nutlets smooth, polished, brown. 1. O. suffruticosa. 
Nutlets rough, tubercled or wrinkled. 
Inflorescense a broad, open, round-topped thyrsus; its branches 
usually again branched. 
Plants light yellowish-green, nutlets winged, regularly wrinkled. 
2. O. hispidissima. 
Plants dark green; nutlets merely acute angled, irregularly 
wrinkled. 3. O. thyrsiflora. 
Inflorescense a narrow or spike-like thyrsus, if more open the 
branches simple. 
Plants rough-hairy, over 1.5 dm. high; corolla 6-10 mm. broad. 
4. O. glomerata. 
Plants silvery appressed-pubescent; less than 1.5 dm. high; 
corolla 4-6 mm. high. 5. O. sericea. 
Corolla tube much longer than the calyx lobes, long exsertea. 
6. O. fulvocanescens. 
1. Oreocarya suffruticosa (Torr.) Greene. 
Common in dry soil in the western part of the state. Banner County; 
Belmont; Box Butte County; Deuel County; Hat Creek Basin; Plum- 
mer Ford; Sioux County. 
2. Oreocarya hispidissima (Torr.) Gray. 
Nebraska according to Rydberg’s Flora of Colorado. 
3. Oreocarya thyrsiflora Greene. 
On sandy hillsides in western Nebraska, according to Rydberg’s Flora 
of Colorado. 
4. Oreocarya glomerata (Pursh.) Greene. 
A xerophyte of the table-lands and foot-hills of the Eee part of 
the state. Belmont; Deuel County; Scotts Bluff County; War Bonnet 
Canon. 
5. Oreocarya sericea (A. Gray.) Greene. 
In dry soil in the western part of the state. Alliance; Deuel County; 
Kimball County. 
6. Oreocarya fulvocanescens (A. Gray.) Greene. 
In canons in the Hat Creek Basin. War Bonnet Canon. 
