208 NORTH AMERICAN FLORA’ [VoLuME 21 
7. Boerhaavia tenuifolia A. Gray; Coult. Contr. U. S. Nat. Herb. 
2: 355. 1894. 
Boerhaavia linearifolia glabrata A. Gray, Am. Jour. Sci. II. 15: 322, 1853. 
Perennial, from a woody base, sparsely branched, the branches 2-4 dm. long, very slender, 
glaucous, glabrous below, sometimes obscurely scaberulous above; petioles stout, 1-2 mm. 
long; leaf-blades linear, 1-2.5 cm. long, 1.5 mm. broad, coriaceous, glaucous, glabrous, the 
margins strongly revolute; inflorescence cymose, axillary and terminal, much branched, the 
branches viscid-puberulent, the flowers numerous, on pedicels 1-2 mm. long; bracts minute, 
ovate or lanceolate, abruptly attenuate, minutely puberulent or glabrate; perianth purplish- 
red, 8-10 mm. broad, puberulent outside; stamens 3; fruit obovoid, rounded at the apex, 
5-angulate, 2.5-3 mm. long, glabrous, the angles broad and smooth, the sulci between them 
smooth. 
TYPE LOCALITY: Camp Charlotte, Ixion County, Texas. 
DIstTRIBUTION: Dry hillsides, western Texas. 
8. Boerhaavia Lindheimeri Standley, sp. nov. 
Boerhaavia linearifolia glandulosa Standley, Contr. U. S. Nat. Herb. 12:387. 1909. Not B. glandu- 
losa Anderss. 1854, 
Perennial, from a thick woody root, the stems several or numerous, ascending or pro- 
cumbent, sparsely branched, the branches stout, divergent or ascending, densely glandular- 
hirsute and glandular-puberulent below, densely glandular-puberulent above, the internodes 
mostly longer than the leaves; petioles 1-3 mm. long; leaf-blades lance-linear, lanceolate, or 
linear, broadest at the base and gradually narrowed upward, 1.5-4 cm. long, 2-10 mm. wide, 
rounded or obtuse at the base, acute to acuminate at the apex, thinly coriaceous, green above, 
pale beneath and brown-spotted, glandular-hirtellous or in age glabrate; inflorescence cymose, 
much branched, nearly naked, the slender branches glandular-puberulent, the flowers solitary, 
on pedicels 1-3 mm. long; bracts minute, persistent, lanceolate, attenuate, brown-dotted; 
perianth purplish-red, 7-9 mm. long and broad, puberulent outside; stamens 5; fruit obovoid- 
oblong, rounded at the apex, 3 mm. long, glabrous, 5-angulate, the angles rounded, smooth, 
the narrow sulci smooth. 
Tyre LocaLiry: Texas. 
DISTRIBUTION: Southwestern Texas. 
9. Boerhaavia linearifolia A. Gray, Am. Jour. Sci. IT. 15: 322. 1853. 
Boerhaavia tenuifolia Standley, Contr. U. S. Nat. Herb. 12: 386, in part. 1909. Not B. tenuifolia 
A. Gray, 1894. 
Perennial, from a thick woody root; stems numerous, ascending or procumbent, 1-4 dm. 
long, much branched, the branches slender, gray or white, hirsute or hirtellous and glandular- 
puberulent below, densely glandular-puberulent above; petioles stout, 1-3 mm. long; leaf- 
blades linear to lanceolate, rarely narrowly triangular, 1.2-3.5 cm. long, 2-7 mm. wide, obtuse 
to rounded at the base and often unequal, broadest at the base and usually tapering gradually 
to the obtuse or acute apex, coriaceous, usually glaucous, at least beneath, hirsute or hirtellous 
when young, glabrate in age, spotted with brown beneath; inflorescence cymose, much branched, 
naked or nearly so, the slender branches ascending or divergent, glandular-puberulent, the 
numerous flowers subsessile or on pedicels 1-3 mm. long, the bracts minute, persistent, ovate 
or lanceolate, acuminate or attenuate, brown-dotted; perianth purplish-red, 7-8 mm. long, 
about 1 cm. broad, puberulent outside; stamens 5; fruit obovoid-oblong, 2.5-3 mm. long, 
glabrous, 5-angtlate, the angles broad, rounded, smooth, the broad or narrow sulci smooth. 
Type LocaLiry: Western Texas. : . 
DistrRrBution: Dry, rocky hillsides, western Texas and southeastern New Mexico to Coahuila. 
10. Boerhaavia purpurascens A. Gray, Am. Jour. Sci. IT. 15: 321. 
1853. 
Erect annual, 2-5 dm. high, much branched below, the branches slender, brown-punctate, 
puberulent below, densely viscid-villous or glandular-hirtellous above; petioles slender, 0.4- 
