518 PROCEEDINGS OF THE AMERICAN ACADEMY, 
ovate-lanceolate acute lobes: corolla blue, 2 cm. long, the slightly pubes- 
cent tube twice exceeding the calyx; the blunt pilose galea one third as 
long as the broad lip: style densely bearded. —Morexos, mountain 
side at 2,150 m. alt., near Cuernavaca, Aug. 9, 1898 (C. G. Pringle, 
no. 7643), 
++ ++ Stems and leaves glandular-pilose, hardly setulose. 
85. §. villosa. Stems 2.5 to 3 dm. high, glandular-pilose below, 
densely glandular-villous above and on the rhachis: leaves thick, pale 
green or cinereous, deltoid-ovate, mostly blunt at tip, subtruncate at base, 
entire or obscurely undulate, 1.5 to 3 cm. long, on cinereous-pubescent 
petioles 0.5 to 1.5 em. long, the upper subsessile: peduncles 0.5 dm. 
long; verticels 3—6-flowered, all becoming remote, the lowest 2.5 to 3 
cm. apart: bracts ovate, acuminate, setulose: pedicels slender, 2 to 3 
mm. long: calyx blue-tinged, viscid, pilose-setulose, in anthesis 6 to 7 
mm. long; the tube slightly longer than the lips; upper lips ovate, acumi- 
nate, entire, lower with two ovate acuminate lobes: corolla violet, 1.5 
em. long; the glabrous tube slightly exserted; the puberulent galea one 
third as long as the broad lip: style bearded. — San Luis Porost, rare 
in the mountains, San Miguelito, 1876 (Schaffner, no. 678). 
++ ++ ++ Stems and leaves mostly glabrous or puberulent or only sparingly 
setulose. 
= Upper lip of calyx tridentate. 
a. Calyx-tube hispid: leaves from orbicular to ovate-triangular, 8 to 6 cm. long, 
2 to ad 
86. S. eLecnomarrotra, HBK. 1. c. 290, t. 141; Benth. in DC. 1.05 
806; Hemsl. 1. c. 556; Briq. 1. c. — South central and southern Mexico- 
San Luts Porost, alt. 1,850 to 2,460 m., 1878 (Parry & Palmer, 00 
756): Oaxaca, near Reyes, alt. 2,060 to 3,070 m., Oct. 20, 1894 (Zz. W. 
Nelson, no. 1794). Originally from near Guanajuato. 
6. Calyx glabrous or minutely puberulent: leaves narrowly ovate-triangular, 1 to 
1.75 cm. long. 
87. S. Forrert, Greene, Pittonia, i. 156.— Duranao, Sierra Madre, 
west of Durango, alt. 2,500 m., Sept., Oct., 1881 (A. Forrer). 
= = Upper lip of calyx entire, subulate-tipped ; calyx densely white-pubescent 
wit i irs. 
ong fine viscid spreading hai 
88. S. prunifolia. Stems puberulent, decumbent, assurgent only at 
the tips, 3 to 5 dm. long: leaves orbicular to obovate, rounded or acutis 
at tip, round or cuneate at base, crenate-serrate, the uppermost largest 
3 to 5 cm. long, 2.5 to 3.5 em. broad, the lowest much smaller, dull gree™s 
