214 NORTH AMERICAN FLORA [VoLuME 21 
1 or 2, included; fruit obovoid, 2.5 mm. long, rounded at the apex, acute at the base, glabrous, 
5-angulate, the angles thick, acute, smooth, the sulci broad, open, rugose. 
TYPE Locality: Mexico. 
DistriBution: In dry, sandy soil, southern Arizona to Chihuahua and Sinaloa. 
17. CYPHOMERIS Standley, Contr. U. S. Nat. Herb. 13: 428. 
1911. 
Lindenia Mart. & Gal. Bull. Acad. Brux. 10!: 357. 1843. Not Lindenia Benth. 1842. 
Tinantia Mart. & Gal. Bull. Acad. Brux. 11:: 240. 1844. Not Tinantia Scheidw. 1839. 
Senkenbergia Schauer, Linnaea 19: 711. 1847. Not Senckenbergia Gaertn. Mey. & Scherb. 1800. 
Erect or ascending perennial herbs, suffrutescent at the base, more or less pubescent, 
much branched, the upper internodes each with a glutinous area along the middle. Leaves 
opposite, those of a pair subequal, petiolate, the blades broad or narrow, succulent, entire or 
sinuate. Flowers perfect, in elongate, spikelike, terminal and axillary racemes, pedicellate, 
each pedicel subtended by a narrow caducous bract; perianth broadly tubular-funnelform, 
deep bright-red, the tube very short, slightly curved, constricted above the ovary, the limb 
somewhat oblique, shallowly 5-lobed, induplicate-plicate. Stamens 5; filaments capillary, 
exserted, unequal, connate at the base; anthers didymous. Ovary fusiform, asymmetric; 
style filiform, exserted; stigma capitate. Anthocarp clavate, stipitate, gibbous, pendent or 
refracted, finely striate vertically, glabrous. Seed with a thin testa adherent to the pericarp; 
embryo ‘ttncinate, the broad cotyledons enclosing the farinaceous endosperm, the radicle 
elongate, descending. 
Type species, Lindenia gypsophiloides Mart. & Gal. 
Fruit 10-12 mm. long; leaf-blades glabrous, or sparsely puberulent when young, 
the upper most usually linear or nearly so. 1. C. gypsophiloides. 
Fruit about 7 mm. long; leaf-blades permanently and densely puberulent, the 
upper ones nearly as broad as the lower. 2. C. crassifolia. 
1, Cyphomeris gypsophiloides (Mart. & Gal.) Standley, Contr. U. 5. 
Nat. Herb. 13: 428. 1911. 
Lindenia gypsophiloides Mart. & Gal. Bull. Acad. Brux. 10!: 358. 1843. 
Tinantia gypsophiloides Mart. & Gal. Bull. Acad. Brux. 111: 240. 1844. 
Senkenbergia annulata Schauer, Linnaea 19: 711. 1847. 
Boerhaavia gibbosa Pavon; Choisy, in DC. Prodr. 132: 457. 1849. 
Senkenbergia gypsophiloides Benth. & Hook. Gen. Pl. 3: 5. 1880 
Boerhaavia gypsophiloides Coult. Contr. U.S. Nat. Herb. 2: 354. 1894. 
Plants erect or ascending, 3-10 dm. high, sufirutescent at the base, much branched, the 
branches slender, glaucous, glabrous, or rarely obscurely puberttent below; petioles slender, 
0.5~2.5 cm. long; leaf-blades narrowly deltoid, lanceolate, deltoid-oblong, or ovate-deltoid, 
the upper ones usually linear, 2.5-7 em. long, 0.3-3 cm. wide, subcordate to acute at the base, 
gradually narrowed to an acute or obtuse apex, entire or rarely slightly sinuate, green above, 
glaucescent beneath, glabrous, or when young sparsely and minutely puberulent; racemes 
slender, 5-16 cm. long, the flowers remote, on pedicels 1 mm. long; bracts lanceolate or linear, 
4-7 mm. long, glabrous; perianth 7-9 mm. long, 9 mm. broad, glabrous; stamens long-exserted ; 
fruit 10-12 mm. long, slender-stipitate, 2-2.5 mm. thick; seed obovoid, about 4 mm. long, 
rounded at the apex, acuminate at the base, brown. 
Tyrer LocaLity: Plains near Tehuac4n, Puebla. . 
DISTRIBUTION: Dry, rocky slopes, western Texas and southern New Mexico, southward to 
Nuevo Leén and Puebla. 
2. Cyphomeris crassifolia Standley, Contr. U. S. Nat. Herb. 13: 
428. 1911. 
Senkenbergia crassifolia Standley, Contr. U. S. Nat. Herb. 12: 373. 1909. 
Plants 6-10 dm. high, suffruticose below, much branched, the branches slender, pale- 
green, finely and sparsely puberulent, the branches of the inflorescence glabrous; petioles 
0.4-2.5 em. long; leaf-blades rhombic, broadly oblong, or rhombic-ovate, 1.5-3 em. long, 1-2 
