210 NORTH AMERICAN FLORA [Volume 21 
minute, lanceolate, brown-punctate, persistent; perianth 3 mm. long, pink, glandular-punctate; 
stamens 5, included; fruit 4 mm. long and nearly as broad, rounded at the base, emarginate at 
the apex, glabrous, 5-winged, the wings broad, thin, the body coarsely transverse-rugulose. 
TYPE Locattry: On a small rocky island in Guaymas harbor, Sonora. 
DISTRIBUTION: Vicinity of the type locality. 
14. Boerhaavia triquetra S. Wats. Proc. Am. Acad. 24: 69. 1889. 
Ascending or procumbent annual, 3-6 dm. high much branched, the branches slender, 
yellowish-green or stramineous, minutely puberulent, the upper internodes with viscous 
rings; petioles slender, 0.3~1.7 cm. long; leaf-blades oblong-oval to ovate-oblong or lanceolate, 
1.5-4 cm. long, 0.4-1.5 cm. wide, rounded or obtuse at the base, obtuse to attenuate at the 
apex, entire, thick and firm, green above, pale beneath, glabrous, epunctate; inflorescence 
rather densely cymose, much branched, the branches slender, glabrous, erect or ascending, 
the flowers on pedicels 1-3 mm. long, in clusters of 2 or 3 at the ends of short slender peduncles; 
bracts minute, ovate or lanceolate, glandular-punctate, persistent; perianth pink, 1 mm. long, 
glabrous, brown-punctate; stamens 2, included; fruit obpyramidal, 2-2.5 mm. long, 1.2 mm. 
broad, truncate at the apex, glabrous, yellowish-green, 3- or 4-angulate, the angles very acute, 
smooth, the broad sulci coarsely rugulose. 
TyPE Locality: Sandy plains and stony ridges about Los Angeles Bay, Lower California. 
DistRIBUTION: Known only from the type locality. 
15. Boerhaavia maculata Standley, Contr. U. S. Nat. Herb. 12: 379. 
1909. 
Erect annual, 2-6 dm. high, much branched below, the branches slender, brown-punctate, 
cinereo-puberulent, some of the upper internodes viscous; petioles slender, 3-12 mm. long; 
leaf-blades narrowly oblong to lanceolate or linear, 1.2-6 cm. long, 0.2—-1.1 cm. wide, rounded 
or obtuse at the base, acuminate to long-attenuate at the apex, entire, sparsely puberulent or 
glabrous, green above, pale beneath, brown-punctate on both sides; inflorescence loosely 
cymose-paniculate, much branched, the branches slender, erect or ascending, the flowers on 
pedicels 2-10 mm. long, simply umbellate at the ends of long slender peduncles; bracts minute, 
lanceolate, persistent, brown-punctate; perianth pink, 3 mm. long, 6-7 mm. broad, glabrous, 
glandular-punctate; stamens 5, exserted; fruit obpyramidal, truncate at the apex, 3.5-4 mm. 
long, 2-2.5 mm. broad, stramineous. glabrous, 5-angulate, the angles very broad, much com- 
pressed, acute, slightly rugose, the narrow sulci strongly rugose. 
‘Type Locarity: Guaymas, Sonora. : 
DistrrBvution: Dry, rocky hillsides, coast of southern Sonora and northern Sinaloa. 
16. Boerhaavia erecta L. Sp. Pl. 3. 1753. 
Boerhaavia elongata Salisb. Prodr. 56. 1796. 
Boerhaavia virgata H. B. K. Nov. Gen. & Sp. 2: 215. 1817. 
Boerhaavia discolor H. B. K. Nov. Gen. & Sp. 2: 215. 1817, 
Boerhaavia atomaria Raf. Aut. Bot. 40. 1840. 
Valeriana latifolia Mart. & Gal. Bull. Acad. Brux, 11): 124. 1844. 
Boerhaavia Thornberi M. E. Jones, Contr. West. Bot. 12: 72. 1908. 
Boerhaavia erecta Thornberi Standley, Contr. U. S. Nat. Herb. 12: 381. 1909. 
Annual, erect or decumbent, 2-10 dm. high, much branched at the base and sparsely 
above, the branches stout or slender, often tinged wth red, finely puberulent below, the 
middle internodes often with brown viscous bands, the uppermost internodes glabrous or 
minutely puberulent; petioles slender, 0.4-4 cm. long; leaf-blades mostly broadly ovate- 
rhombic or deltoid-ovate, but sometimes oval, broadly oblong, or ovate, 2-6 cm. long, 1-4.5 
cm. wide, truncate to rounded at the base, broadly rounded to obtuse or rarely acute at the 
apex, entire or usually stbsinudte, bright-green above, beneath paler or glaucous and usually 
brown-punctate, glabrous, or ciliolate or sparsely puberulent, the blades of the uppermost 
leaves smaller, lanceolate to linear; inflorescence cymose, much branched, the branches slender, 
erect or ascending, usually glabrous, rarely with viscous internodes, the flowers irregularly 
umbellate-cymose or subracemose at the ends of long slender peduncles, the pedicels 1-5 mm. 
