168 PROCEEDINGS OF THE AMERICAN ACADEMY 



erately oblique at the base, 4-6 lines in length, 1|— 2 lines in 

 breadth, paler beneath : racemes numerous, many-flowered, 6 inches 

 or more in length, flowering from near the base: flowers early de- 

 ciduous, leaving the rhachis naked below: pedicels 4-5 lines long, 

 articulated somewhat above the middle : calyx-teeth subequal, 

 ovate-oblong, smooth, yellowish brown, subcoriaceous, distinctly 

 but narrowly imbricated, 2-2^- lines long, retlexed in anthesis : 

 petals bright yellow, obovate, erose, 4-5 lines long, one of them 

 with a slightly narrower blade and broader claw, and bearing a 

 small crest-like appendage on the inside near the base: stamens 

 erect, equalling the corolla; filaments silky near the base; ovary 

 hirsute, about 6-ovuled: fruit not seen. — Volcanic hills, Monte 

 Leon Pass, Michoacan, Ma} r , 1891 (n. 3730). The very narrow 

 imbrication of the sepals tends to connect Caesalpinia and 

 Poinciana. 



Lopezia angustifolia. Somewhat woody near the base: stem 

 purplish, nearly smooth, 2-4 feet high, giving off numerous slen- 

 der spreading subsimple branches : caulme leaves not persistent, 

 the lower not seen, the upper ones and those of the branches nar- 

 rowly lanceolate, irregularly subserrate, glabrous, 5-10 lines long, 

 1-2 lines broad, pellucid-punctate, narrowed to a bluntish point, 

 contracted at the base to a slender petiole (1^-3 lines in length), 

 midrib often reddish: racemes numerous, terminating the stem 

 and branches, not distinctly pedunculate; pedicels not exceeding 

 6 lines: calyx segments red, linear, narrowed to an obtuse point, 

 the lowest somewhat broader: petals purple, the lower ones obo- 

 vate, cuneate, 3 lines long, the upper with a linear-oblong blade, 

 scarcely at all auriculate at the base; glands single, very slightly 

 contracted in the middle: sterile stamen with filament not equal- 

 ing the suborbicular refuse bright-red blade : fruit spherical, 2 

 lines in diameter. — Limestone ledges of Las Canoas, San Luis 

 Potosi, October, 1891 (n. 3990). 



COULTEROPHYTUM, n. gen. of the Umbelliferaa (Selinea?). 

 Stylopodium slender, conical; margin not distinctly undulate. 

 Fruit clavate, subterete in cross-section, contracted below the 

 seeds into a short winged stipe-like base; commissure broad; car- 

 pels compressed dorsally; the primary ribs narrowly winged, the 

 lateral wings slightly broader; oil-tubes single at the intervals, 

 about four on the commissure ; seed-face concave. — Tall perennial of 

 robust habit; leaves bi- or tri pinnate: inflorescence much branched; 

 umbels compound: bracts of the involucres and involucels several, 



