170 PROCEEDINGS OF THE AMERICAN ACADEMY 



men from Nicaragua, collected by C. Wright (N. Pacif. Expl. Exped. 

 1853-56). The latter differs, however, in its larger flowers aud more 

 finely toothed leaves, which are more densely aud roughly pubescent 

 upon the upper surface. 



Heliotkoi'IUM Phinglei. a spreading annual, branching from 

 the base, 2 to 5 inches high, silky-villous : leaves elliptic-lanceolate, 

 acute at both ends, 4 to 6 lines long, 2 lines broad; petioles 1 or 2 

 lines long : flowers scattered along the leafy branches from near the 

 base ; calyx-lobes lance-linear, acuminate ; corolla-tube 1 to 1^ lines 

 long, the limb abruptly expanding, 2^ lines broad, with five acutish 

 primary lubes, with which five short teeth alternate : fruit separable 

 at maturity into four nutlets, minutely reticulate-roughened on the 

 back but not hispid. — Santa Eulalia Mountains, Chihuahua. October, 

 1886 (n. 1160) ; also in thin soil of rocky hills, Las Canoas, San Luis 

 Potosi, July, 1890 (n. 3207). This species resembles in habit // 

 jjhyllostachyum, Torr., but has flowers more than twice as large. It 

 is distinguished from H. Umbatum, Benth., under which name n. 1160 

 was distributed, by its broader leaves, very scattered flowers, more 

 acute lobes of calyx and corolla, rougher nutlets, and its more decid- 

 edly annual character. The inflorescence in H. Uinbatum is distinctly 

 terminal and compact, and the root often clearly perennial. 



Omphalodks ACUMINATA. Stem weak, procumbent, dift'usely 

 branched, nearly smooth, 18 inches long or more, leafy throughout : 

 leaves deltoid, attenuate-acuminate, entire, 2 inches long, 15 lines in 

 breadth, cordate with rounded lobes and broad sinus, membranaceous,^ 

 nearly smooth above, puberuleut with very short hairs beneath ; the 

 upper leaves smaller, lanceolate, subcordate or rounded at base ; peti- 

 oles 1 to 1^ inches long: peduncles lateral, scattered, very slender, 

 flexuous-sprcading, 9 to 12 lines in lengtli : calyx-lobes oblong, acute; 

 corolla 4 or 5 lines broad, rose-color, with short tube and rounded 

 spreading segments ; scales very prominent, nearly globular, minutely 

 papillose : nutlets orbicular, only one in each flower ripening, 1^} lines 

 in diameter at maturity, flat, horizontal over the gynobase, the wing 

 reflexed, about 30-tootlied. — Li the Sierra Madre. near Monterey ; 

 June, 1888 (n. 2220). Resembles 0. cardioplii/Ua^ Gray, but is 

 smoother throuirhout and has much longer stems of more strairuling 

 habit, the leaves twice as large, of more delicate texture, and much 

 more attenuate at the apex. In that species, moreover, two to four 

 nutlets mature and the wing-borders have but half as many teeth. 



IroAiai;AL Leonensis. Root tuberous, an inch thick ; stem twining, 

 striate-angulate, minutely roughened : leaves deeply palmatQly 5-lobed, 



