90 CHENOPODIACEAE 



few to many, mostly simple, erect, 1-4 dm. high, more or less silky-pubescent, usually glabrate in 

 age. Leaves narrowly linear, nearly terete, 1-3 cm. long, about 1 mm. thick, silky-pubescent to 

 glabrate ; fruiting calyx about 2 mm. broad, the wings fan-shaped, distinct, membranous ; utricle 

 glabrate ; seed 2 mm. broad. 



Alkaline soils, Sonoran Zones; Great Basin region from eastern Oregon to Wyoming, Colorado, and New 

 Mexico. In the Pacific States confined to the alkaline plains of southeastern Oregon and Inyo County, Calitornia. 

 Type locality: western Nevada. June- Aug. Red Molly. 



2. Kochia californica S. Wats. Mojave Red Sage. Fig. 1540. 



Kochia californica S. Wats. Proc. Amer. Acad. 17: 378. 1882. 



Kochia americana var. californica M. E. Jones, Contr. West. Bot. No. 11: 19. 1903. 



Stems several from the branched woody crown, 2-5 dm. high, paniculately much branched, 

 herbage more or less densely silky-pubescent. Leaves flat, 1-2 cm. long, 1-3 mm. wide ; flowers 

 and fruit as in the preceding species. 



Alkaline soils, Lower Sonoran Zone; Mojave Desert, California. Type locality: Mojave Desert, the station 

 Colton cited by Watson being erroneous. Jan.-July. 



12. ECHINOPSILON Moq. Ann. Sci. Nat. II. 2: 127. 1834. 



Annual or suffrutescent plants, often tomentose or pubescent. Leaves alternate, sessile, 

 linear or lanceolate, entire. Flowers minute, solitary or glomerate in the axils, sessile, 

 villous or tomentose. Calyx globose or depressed, the lobes 5, incurved, armed on the 

 back with a usually hooked spine. Utricle enclosed by the coriaceous fruiting calyx; 

 pericarp free from the orbicular horizontal seed; embryo annular. [Name Greek, mean- 

 ing spine and bare, in reference to the spines on the calyx.] 



An Old World genus of about 30 species. Type species, Kochia sedoides Schrad. 



1. Echinopsilon hyssopifdlium (Pall.) Moq. Hyssop-leaved Echinopsilon. 



Fig. 1541. 



Salsola hyssopifolia Pall. Reise 1: 491. 1771. 



Echinopsilon hyssopifolium Moq. in DC. Prod. 13 2 : 135. 1849. 



Kochia hyssopifolia Boiss. Fl. Orien. 4: 926. 1879. 



Bassia hyssopifolia Kuntze, Gen. PI. 547. 1891. 



Annual, pilose throughout ; stems branching from the base and prostrate, 3-5 dm. long. 

 Leaves narrowly linear-lanceolate, 2-4 cm. long, flat ; flowers in few-flowered axillary glomer- 

 ules ; calyx-lobes broadly ovate, obtuse, about 1 mm. long, villous, armed with a stout spreading 

 hooked spine; seed horizontal, lenticular, about 1 mm. in diameter. 



A recent adventive from Europe but spreading rapidly especially in alkaline soils; well established in eastern 

 Washington, California, and Nevada. July-Oct. 



13. CORISPERMUM L. Sp. PI. 4. 1753. 



Annual herbs, glabrous or stellate-pubescent. Leaves narrow, sessile, entire. Flowers 

 solitary or clustered in the axils of bracts, scarious-margined, forming spikes. Calyx 

 minute, with 1-3 lobes, the posterior one larger and scarious. Stamens 1-5. Stigmas 2, 

 recurved. Utricle orbicular to elliptic, plano-convex, the margin winged or acute. Seed 

 erect, adherent to the membranous pericarp; embryo annular, surrounding the copious 

 endosperm ; radicle inferior. [Name Greek, meaning bug seed.] 



About 10 species, natives of the north temperate and subarctic zones. Type species, C oris per mum hyssopi- 

 folium L. 



1. Corispermum hyssopifolium L. Common Bugseed. Fig. 1542. 



Corispermum hyssopifolium L. Sp. PI. 4. 1753. 



Corispermum americanum Nutt. Trans. Amer. Phil. Soc. II. 5: 165. 1837. 

 Corispermum imbricatum A. Nels. in Coult. & Nels. Man. Bot. Rocky Mts. 164. 1909. 

 Corispermum marginale Rydb. Bull. Torrey Club 30: 247. 1903. 



Stems much branched and spreading, 1 . 5-6 dm. long, striate, glabrate or stellate-villous, 



sparsely leafy, often tinged with red. Leaves linear, 1-7 cm. long, 1-3 mm. wide, cuspidate, 



glabrous or stellate-pubescent ; spikes loosely to densely flowered ; bracts lanceolate to ovate, 



usually erect, 4-10 mm. long; fruit 3.5-^.5 mm. long, conspicuously winged. 



Sandy soils, Transition and Upper Sonoran Zones; in the Pacific States this species occurs on sandbars of 

 Columbia River west of the Cascade Mountains, but is more generally distributed in eastern Washington and 

 Oregon. Type locality: along the Volga River, Russia. July-Oct. 



Corispermum nitidum Kit. ex Schult. Oestr. Fl. ed. 2. 1: 7. 1814. Similar to C. hyssopifolium, but the 

 fruit smaller, 2-3 mm. long, and the lower bracts narrower than the fruit. Locally introduced on the banks of 

 Snake River, Wawawai, Washington (St. John). 



14. ALLENROLFEA Kuntze, Rev. Gen. PI. 2: 545. 1891. 



Much branched glabrous and succulent shrub or suffrutescent perennial with alternate 

 articulate branches. Leaves reduced to short scales. Flowers perfect, spirally arranged 



