CHENOPODIACEAE. 119 



g. KOCHIA Rath. 



Perennials ; leaves narrowly linear, fleshy. 



Branches tomentulose, soon glabrate ; leaves somewhat hairy when young ; fruit 

 nearly smooth. i. K. americana. 



Branches and leaves densely and permanently hairy; fruit very pubescent. 



2. K. vestita. 

 Annual ; leaves linear-lanceolate, not fleshy. 3. K. scoparia. 



1. Kochia americana S. Wats. In alkaline meadows and marshes from 

 Wyo. to Cal., Colo, and Ariz. Alt. about 4600 ft. Grand Junction. 



2. Kochia vestita S. Wats. In alkaline meadows and marshes from Wyo. 

 to Cal. and Colo. Alt. 4000-6000 ft. Grand Junction ; McElmo Canon. 



3. Kochia scoparia Schrad. Introduced from Europe and sparingly grow- 

 ing in waste places from N. Y. and Mich, to Pa. and Colo. Alt. about 5000 

 ft. Fort Collins ; New Windsor. 



10. CORIOSPERMUM L. BUG-SEED. 



Fruit with a distinct wing at least J^ mm. wide. 



Spike lax; lower bracts much narrower than the fruit. i. C. nitidum. 



Spike dense ; lower bracts rarely narrower than the fruit. 2. C. marginale. 

 Fruit merely acute, margined, scarcely winged. 



Plant glabrous. 3. C. emarginatum. 



Plant more or less villous. 4. C. villosum. 



1. Coriospermum nitidum Kit. (C. hyssoppifolium microcarpum S. Wats.) 

 On sand-hills and in canons from Ills, to N. D., Tex. and Colo.; also in 

 Europe and Asia. Alt. 4000-7000 ft. Huerfano Valley; Colorado Springs; 

 Canon City. 



2. Coriospermum marginale Rydb. In valleys of Wyo. and Colo. Alt. 

 4000-7000 ft. Denver; Huerfano Valley; Rocky Ford; near Boulder. 



3. Coriospermum emarginatum Rydb. In valleys of Wyo. and Colo. Colo- 

 rado (exact locality not given). 



4. Coriospermum villosum Rydb. In sandy valleys from Alb. to Ore., Colo, 

 and Nev. Alt. 7000-8000 ft Salida ; Gunnison ; Buena Vista. 



ii. SALICORNIA L. GLASS-WORT. 



i. Salicornia herbacea L. (S. rubra A. Nelson.) In salt marshes from 

 Que. to B. C., Ga. and Calif. North Park; Larimer Co. 



12. SARCOBATUS Nees. GREASE- WOOD. 



i. Sarcobatus vermiculatus (Hook) Torr. In dry alkaline or saline soil 

 from Neb. to Wash., Tex. and Calif. Alt. 4000-9000 ft Salida; Mancos; 

 Grand Junction; Mancos Canon; Lake John, North Park; near Montrose; 

 Walsenburg ; Olathie ; Black Canon of the Gunnison ; Gypsum ; Middle Park. 



13. DONDIA Adans. SEA ELITE. 



Sepals more or less fleshy, but none of them carinate ; leaves narrowed at the base. 

 Plant perennial, stout. i. D. Moquini. 



Plant annual, slender. 2. D. diffusa. 



