442 CHENOPODIACEAE 



Very variable in its fruiting Viraets. The original or Great Plains plant has densely scurfy 

 wings. Along the Colorado Eiver are plants with very broad and only slightly scurfy fruit 

 wings. With their slender branches crowded with sea-green fruits and bending outwards or 

 towards the ground, these shrubs are not unhandsome objects and are somewhat different in 

 appearance from many forms of the Mohave and Colorado deserts with scurfy fruits and often 

 much reduced or toothed wings. 



Var. laciniata Parish ii. var. Wings 3 or 4 linrs hi'oad. saliently laciniate. 

 — (Alae liu. 3-4 latae, profuiide lai'iniatae.) — Caleb, Colorado Desert, Parish 

 8256. Also oecurriug iu the jMohave Desert (Barstow, Jvpson 5171a). Pass- 

 ing into the next. 



Var. macilenta Jepson n. var. "Wings much reduced, 3,4 to I14 lines broad, 

 coarsely toothed. — (Alae permiuutae, lin. %-lV2 latae. dentatae.) — Iloltville, 

 Colorado Desert, Parish. 8258. Not uncommon in the southern part of the 

 Colorado Desert. Aspect very diil'erent from the type. 



Refs. — Atriplex canescens dames. Cat. 178 (182.'5) ; Me"rriam, N. Am. Fauna, 7: 326 

 (1893). CoUii/onum caitescens Pursh, Fl. 2: 370 (1814), type loc. Big-bend of the Missouri. 



8. GRAYIA IT. & A. 



Low shrub.s with alternate entire leaves. Flowers dioecious or sometiines 

 monoecious, in axillary clusters or terminal spikes. Staminate flowers with- 

 out l)racts: calyx mostly 4-parted; stamens 4 or 5, with short sulnilate filaments. 

 Pistillate flowers without calyx, the ovary enclosed in an orbicular strongly 

 flattened membranous sac with a small orifice at the apex and bordered all 

 around with a narrow wing; sac really composed of 2 eonduplicate bracts 

 united by their edges nearly to the apex, each bract with a wing developed 

 on the back or midrib, the whole much enlarged in fruit. Styles 2. Achene 

 with very thin pericarp. — Two species, Great Basin region. (Asa Gray, 1810- 

 1888, distinguished American botanist.) 



1. G. spinosa Moq. Hop Sage. (Fig. 86.) 

 Deep green shrub IVi to 3 feet high, the branches 

 frequently spinescent ; young parts mealy, finally 

 glabrous; leaves rather fleshy, linear-oblanceolate 

 or obovate. 4 to 15 lines long, barely petioled ; 

 stamiiuite flowers in axillary clusters, the pistillate 

 mostly spicate; fruiting bracts round, 3 to 6 lines 

 in diameter, sessile, entire, glabrous, thin, white 

 or pinkish, emarginate, abruptly narrowed below 

 to a short cuneate pedicel-like base, or the pedicel 

 often obscure or obsolete ; styles slender, at first 

 exserted. — Alkaline vallevs : ^lohave Desert to 

 Fig. 86. Grayia spinosa Moq.; Qwens Vallev ; north to Washington and east to 

 truitmg bracts, x 4. -i\' • 



\\ yonnng. 



Locs.— Antelope VaUey. Ball 303(5 ;" Barstow, Jepsoit 4S33 ; Panamint Mts., Hall if- Chandler 

 6992; Big Pine, Hall lS' 'Chandler 7227; Argus Mts., Fiirpus 5481; Honey Lake Valley, Davii 

 3273. 



Refs.— Geayia spinosa Moq. in DO. Prodr. 13=: 119 (1849); Merriam, N. Am. Fauna, 7: 

 328 (1893). Chenopodium ? spinosum Hook. Fl. Bor. Am. 2: 127 (1838). type loc. Columbia 

 River basin, Doue/las. Grayia poh/ffaloides H. & A. Bot. Beech. 388 (1840) ; Hook. Icon. PI. 3, 

 pi. 271 (1840); Kennedy, Univ. Nev. Agr. Exp. Bull. 5.3: 36 (1903). 



9. EUROTIA Adans. 



Low white-tomentose shrubs with alternate entire leaves. Flowers dioecious 

 or monoecious, in small axillary clusters, the clusters spicately disposed at 

 the ends of the branches. Staminate flowers without involucral bracts ; calyx 

 hairj', 4-parted; stamens 4, exserted. Pistillate flowers without calyx; pistil 

 enclosed in a membranous densely silky-hairy sac composed of two bracts 

 united above the middle and with spreading apices; styles 2, .slender, exserted. 



