OIIDER 106. ClIENOPODIACEvE. 287 



7. ATRIPLEX, Gaert, $ Bractless. Calyx 3-5-sepalled. Sta. 35. 

 $ Ovary 2-styled, with no starn., enclosed between 2 leaf-like bracts, with 

 or without a calyx. Herbs ^or shrubs, often mealy or scurfy, with oppositi 

 or alternate hastate leaves and glomerate-spiked green flowers. 



Leaves partly opposite. Bracts triangular-ovate Nos. 1 , ' 



Leaves all alternate. a? Bracts rhombic, cauescent, toothed No. 2j 



x Bracts round-ovate or -cuueate Nos. 4, 5 



1 A. hnstata L. Slender, weak, green ; leaves petiolate, hastate, remotely-toothed ; 



flowers single in the slender spikes, bracts triangular-ovate, denticulate. N. Eng. to 

 S. Car., coastward. 1 3f. j8. FitrsMana is scurfy. 



2 A. littoral is L. Erect with many strict branches ; leaves short-stalked, lanceolate 



to linear, subentire ; flowers glomerate, forming interrupted spikes; bracts hispid, 

 triangular-hastate, denticulate. Lake shores, N-W. 



3 A. rosea L. Canescent, ascending, branched ; Ivs. ovate to oblong, sinuate-toothed ; 



glomerules axillary, bracts rhombic, toothed. Albany, N.Y. (Prof. Porter). 2f. Eur. 



4 A. HORTENSIS. Garden Orache. Erect, branched ; Ivs. triangular-hastate or -oblong, 



subentire, bright green ; bracts roundish, entire. Asia. 



5 A. arenaria N. Sand Orache. Mealy-canescent, branched ; leaves oval to oblong, 



entire, short-petioled ; bracts broad-cuneate, united, denticulate. Sea-beaches, 

 Mass, to Fla. (Obione, C-B.) & 12'. July Sept. 



9. SPINACIA, Tourn. SPINAGE. Dioecious, bractless. $ Cal. 3-5- 

 sepalled. Sta. 4 or 5, exserted. $ Calyx tubular, 2- or 4-toothecl, soon 

 hardening and enclosing the compressed acheniuni. Styles 4. @ Leaves 

 petiolate. Flowers green, axillary. June, July. 



S. OLERACEA. Leaves hastate-lanceolate to arrow-shaped ; fruit-calyx solitary, 3-anglcd' 

 armed with 2 or 4 slender prickles, or unarmed. (I) Gardens. 1 2f. 



10. CORISPERMUM, Juss. Calyx 1-2-sepalled or 0. Stain. 15. 

 Styles 2, short. Pericarp oval, flat and thin, adnate to the seed, vertical. 

 (D With narrow, sessile leaves, and sessile, solitary, axillary flowers. 



. liyssopifollum L. Hairy or glabrous, much branched ; flowers in many bracted 

 spikes, bracts ovate, subulate-pointed ; leaves V and less ; fruit a pellucid disk. 

 Sandy lake-shores, Buffalo, and W. 



11, SALICORNIA, Tourn. SALTWORT. SAMPHIRE. Flowers 2 or 3 

 together, sunk in the cavities of the jointed stem. Calyx bladder-like, 

 denticulate, enclosing the compressed vertical fruit. Stamens 1 or 2. 

 Styles 2. Embryo folded. Seaside, jointed, fleshy herbs almost leafless, 

 with opposite branches. 



1 S. herbacea L. Suberect; spikes elongated, green ; joints truncate and bractless; 



middle flower largest. Salt marshes. 812'. August. 



2 S. Virginica L. Erect ; spikes short, soon red ; joints short, tipped with 2 acute 



bracts ; flowers all alike, if. Salt marshes. 69'. Sept. (S. mucronata C-B.) 



3 S. fruticosa L. Prostrate, with ascending branches ; spikes slender, joints tipped 



with 2 obtuse bracts. ii Sandy beaches. (S. ambigua C-B.) 



12, CHENOPODINA, Moq. GLASSWORT. Calyx bracteolate, cup- 

 shaped, 5-parted, fleshy in fruit with the seed horizontal. Sta. 5. Stigma 

 sessile. Embryo a flat spiral. Smooth seaside fleshy plants, with alter- 

 nate sessile leaves and axillary flowers. (Snseda, Porsk.) 



