Parr 1, 1916] CHENOPODIACEAE 33 
globose glomerules, or the pistillate flowers usually axillary, the staminate glomerules arranged 
in interrupted terminal spikes. Staminate flowers with a 4- or 5-parted perianth, the segments 
oblong, obtuse; stamens 4 or 5, inserted at the base of the perianth; anthers exserted. Pistillate 
flowers without a perianth, subtended by 2 bracts, these united except at the apex, accrescent, 
closed in fruit and enclosing the utricle, unappendaged or developing 2 elongate opposite spines 
near the base; ovary subglobose; stigmas 4 or 5, capillary, connate at the base, long-exserted; 
ovule subsessile. Utricle included in the cartilaginous or indurate bract-tube; pericarp 
membranaceous, adherent to the seed. Seed erect, slightly compressed; embryo annular, 
surrounding the farinaceous endosperm; radicle inferior. 
Type species, Spinacia oleracea L. 
1. Spinacia oleracea L. Sp. Pl. 1027. 1753. 
Spinacia glabra Mill. Gard. Dict. ed. 8. Spinacia no. 2, 1768. 
Stems erect, 3-4.5 dm. high, simple or branched; leaves long-petiolate, the petioles 1-4 
cm. long, the blades triangular-ovate or oval, hastate or subhastate, 4-10 cm. long, acutish, 
entire or sinuate-dentate, the upper blades narrower than the lower ones, cuneate at the base; 
fruiting bracts 2-4 mm. long, sessile, green, usually with 2 stout sharp divaricate spines; seed 
rounded, acute at the base, fuscous, dull. 
TYPE LOCALITY: Not stated. 
DistripurTion: Often cultivated in the United States and frequently escaping; widely culti- 
vated in Europe and Asia, the native habitat not known. 
InLusTRaTIons: E. & P. Nat. Pfl. 3!#: f. 29, A~G; Reichenb. Ic. Fl. Germ. 24: pl. 258. 
11. ATRIPLEX L.. Sp. Pl. 1052. 1753. 
Obione Gaertn. Fruct. 2: 198. 1791. 
Halimus Wallr. Sched. Crit. 117. 1822. 
Pterochiton Torr. in Frém. Rep. Calif. 318. 1845. 
Schizotheca C. Meyer; Lindl. Veg. Kingd. 513, hyponym. 1846. Not Schizotheca Ehrenb. 1832. 
Phyllotheca Nutt.; Moq,. in DC. Prodr. 137: 98, as synonym. 1849. 
Lophocarya Nutt.; Moq. in DC. Prodr. 13?: 106, as synonym. 1849. 
Piterocarya Nutt.; Mog. in DC. Prodr. 132: 106, assynonym. 1849. Not Pterocarya Kunth, 1824. 
Phyllocarpa Nutt.; Moq. in DC. Prodr. 13?: 108, as synonym. 1849. Not Phyllocarpus Riedel, 
1842 
Theleophyton Mog. in DC. Prodr. 13?: 115. 1849. 
Armola Kirschi.; Montand. Syn. Fl. Jura Sept. 261. 1856. 
Teutliopsis Celak. Oesterr. Bot. Zeits. 22: 168. 1872. 
Shrubs or annual or perennial herbs, more or less furfuraceous, farinose, or canescent with 
inflated hairs. Leaves alternate or opposite, sessile or petiolate. Flowers monoecious or 
dioecious, solitary or usually glomerate, the glomerules axillary or terminal, sessile, or in simple 
or paniculate spikes, the staminate and pistillate flowers in the same or in separate glomerules. 
Staminate flowers ebracteate; perianth 3—-5-parted, the segments obovate or oblong, obtuse; 
stamens 3-5, inserted at the base of the perianth, the filaments free or connate at the base. 
Pistillate flowers each 2-bracteolate, the bractlets accrescent, free or usually united, at least at 
the base, and enclosing the fruit; perianth none, or rarely some of the flowers ebracteolate and 
enclosed by a 3-5-lobed calyx; stigmas 2, subulate or filiform, connate at the base; ovule oblique 
or erect on a short funicle, or inverted and suspended from the elongate funicle. Utricle with 
a membranaceous pericarp, this usually free from the seed. Seed erect or inverted, rarely 
horizontal; embryo annular, surrounding the endosperm, the radicle inferior, ascending, or 
- superior. : 
Type species, Atriplex hortensis L.. 
Radicle inferior, or if superior (in one species) the plants bright-green 
annuals with entire, unappendaged bracts. 
Pistillate flowers of 2 kinds: some of them with a regular 3-5-lobed 
herbaceous calyx, the others without a perianth but enclosed 
in a pair of bracts. I. HortENSEs. 
Pistillate flowers all alike, without a calyx. 
Bracts not inflated or spongious; annuals. 
Leaves, at least the lower ones, opposite, the blades usually 
hastate or subbastate, only the lowest, if any, dentate, 
sometimes linear; plants usually bright-green and glab- 
rate. II. HastatTag. 
