250 CHENOPODIACEAE 



with a gibbosity at its base. Stamens 5; filaments subulate. Pistillate flowers 

 solitary or clustered in the axils of the leaves, 2-bracted; bracts ovate, membran- 

 ous, united, forming a sack enclosing the flower, or nearly free. Calyx of 2-3 

 distinct sepals. Utricle ovate, compressed. Radicle superior. 



Leaves thin, lanceolate, 1-nerved. 1. E. Suckleyi. 



Leaves thick, ovate, or ovate-lanceolate; the lower 3-nerved. 2. E. dioica. 



1. E. Suckleyi Torr. Low annual; stem erect, with ascending branches, 

 1-3 dm. high, almost glabrous; leaves sessile, 2-3 cm. long, entire; staminate 

 clusters both axillary and forming short terminal spikes; fruiting bracts ovate, 

 2 mm. long, membranous, pubescent. Atriplex Endolepis S. Wats. A. Suck- 

 leyana Rydb. Plains: Sask. Mont. S.D. Plain. Jl. 



2. E. dioica (Nutt.) Standl. Low annual, usually less than 1 dm. high, 

 rarely 2-3 dm.; stem branched; leaves usually less than 1 cm. long; staminate 

 flowers in small clusters in the axils of the upper leaves or at the end of the 

 branches. Kochia dioica Nutt. E. ovata Rydb. Plains: Mont. Wyo. Plain. 

 Je-S. 



9. SUCKLEYA A. Gray. 



Monoecious fleshy annuals. Flowers axillary, the staminate above. Calyx 

 3-4-parted to the base. Stamens 3 or 4, distinct; anther 2-celled. Fruiting 

 bracts subhastate, obcompressed, herbaceously cristate on the margins, 2-cleft 

 at the apex. Radicle superior. 



1. S. Suckleyana (Torr.) Rydb. Prostrate or ascending annual; stem 

 diffusely branched, 1-4 dm. long, sparingly scurfy; leaves petioled; blades 

 orbicular to rhombic-ovate, 1-3 cm. broad, acutely sinuate-dentate; fruiting 

 bracts 5-6 mm. long, ovate-rhombic and subhastate, with crenate ridges. Obione 

 Suckleyana Torr. Suckleya petiolaris A. Gray. Along streams: Mont. Colo. 

 Plain Submont. Jl-Au. 



10. GRAYIA H. & A. HOP SAGE. 



Subspinescent or unarmed undershrubs or shrubs, with alternate leaves, dioe- 

 cious or monoecious. Flowers small, in axillary clusters and terminal spikes. 

 Staminate flowers bractless; calyx 4-parted; stamens 4 or 5; filaments short, 

 subulate. Bracts of the pistillate flowers obcompressed, membranous, united 

 into a sack with a narrow opening at the apex; calyx none. Ovary 1-celled; 

 styles 2. Seeds vertical; embryo annular; radicle inferior. [Eremosemium 

 Greene.] 



Plant spiny; leaves 1-3 cm. long, spatulate; bracts 8-12 mm. wide. 1. G. spinosa. 



Plant not spiny; leaves 2.5-5 cm. long, linear-oblanceolate ; bracts 4-6 mm. wide. 



2. G. Brandegei. 



1. G. spinosa (Hook.) Moq. Erect diffusely branched shrub, 3-10 dm. 

 high; leaf -blades fleshy, glabrous or at first somewhat mealy, 1-3 cm. long, 

 obtuse or acute; fruiting bracts smooth, emarginate, white or pink. G. polyga- 

 loides H. & A. Alkaline plains or hills: Mont. Wyo. Utah Calif. Wash. 

 Son. Submont. Ap-Je. 



2. G. Brandegei A. Gray. Unarmed shrub, with erect branches, 3-5 dm. 

 high; leaves sessile or short-petioled, 4-6 mm. wide, scurfy; fruiting bracts 

 scarcely emarginate, scurfy. Arid hills, among rocks : w Colo. seUtah. Son. Jl. 



11. EUROTIA Adans. WHITE SAGE, WINTER SAGE, WINTER FAT. 



Low pubescent undershrubs, with alternate, entire leaves, either polygamo- 

 monoecious or dioecious. Flowers in small axillary clusters. Staminate flowers 

 bractless; calyx 4-parted; stamens 4; filaments slender. Pistillate flowers 

 bibracteate; bracts sessile, somewhat obcompressed, united to the apex, not 

 winged, 2-horned, densely long-hairy on the sides. Ovary hairy, oblong-ovate, 

 membranous; stigmas 2, elongate. Seeds vertical, obovate; radicle inferior. 



Branches erect, not spinescent; monoecious or some plants only pistillate; pubescence 

 of mixed stellate and simple hairs. 1. E. lanata. 



Branches ascending or spreading, becoming more or less spinescent; dioecious; pubescence 

 of stellate hairs only. 2. E. subspinosa. 



