144 PROCEEDINGS OF THE AMERICAN ACADEMY 



broad, nearly sessile in a terminal cluster ; outer scales shortly spi- 

 nose-tipped, lanceolate, scariously dilated above, the margin entire or 

 somewhat lacerate: corolla purple: anther-tips acuminate. — In low 

 meadows near the city of Mexico; August, 18'J0 (n. 3145). 



Perezia collina. Stout and tall, glabrous or the inflorescence 

 slightly puberulent : leaves thick and rigid, broadly oblanceolate, acute, 

 narrowed to the sessile auriculate base, irregularly toothed, 6 to 7 inches 

 long or less, the upper ones narrower : heads in rather close panicles 

 terminal on the branches, 8-flowered, the narrow acuminate scales 

 somewhat tomentose, not glandular-puberulent, the longer 5 lines long : 

 achenes {2^ lines long) glandular-puberulent and hispidulous. — In 

 foliage and habit very closely resembling P. rigida (which is collected 

 near the same locality), differing in the narrower acuminate involucral 

 scales, rather fewer-flowered heads, and longer hispidulous achenes. 

 The five nearly equal long-linear lobes of the corolla are coherent into 

 the two lips only at the tips, or are at length entirely distinct. Hills 

 near Guadalajara; December, 1888 (n. 2123). 



Sttrax Jaliscana. Leaves round-ovate to oblong-obovate, acute, 

 at base obtuse or somewhat cuneate, vehite-tomentose and reticulately 

 veined beneath, green and becoming sparsely pubescent above, 2^ to 

 4 inches long, on petioles 2 or 3 lines long : peduncles axillary and 

 1-flowered, or terminal and 2-5-flowered : calyx very shortly toothed ; 

 corolla 6 to 8 lines long, the pubescent filaments adnate to the short 

 tube: fruit depressed-globose, valvately dehiscent, usually 3-seeded, 5 

 or 6 lines broad. — In the Sierra de San Esteban and on rocky hills 

 near Guadalajara; May and November, 1890 (n. 3486 and 2978). 



ScHULTEsiA Mkxicana. Glabrous ; stems stout, erect, 2 or 3 

 inches high, sparingly branched above with short erect branches, 5-9- 

 flowered : leaves oblong-ovate or -lanceolate, sessile and clasping, 3 to G 

 lines long: flowers shortly pedicellate; calyx strongly winged, nerve- 

 less excepting a stout nerve at the base of each wing, 5 lines long, 

 not cleft to the middle, the teeth long-acuminate ; wings strongly 

 cross-veined; corolla yellowish, becoming purplish, 7 to 9 lines long: 

 filaments not appendaged ; anthers oblong, sagittate. — Damp places 

 on the plains near Guadalajara; October, 1889 (n. 2598). Distributed 

 as a new species of Microcala. . 



Ehretia Mexicana. a shrub, with the young branches tubercu- 

 late and somewhat hispid : leaves lanceolate, short-acuminate, suh- 

 cnneate at base, serrate, minutely appressed-strigulose above, pubescent 

 and reticulately veined beneath, 1 or 2 inches long on a i)ubescent 

 ])etiole 2 to 4 lines long r flowers small, in dense compound terminal 



