f.l> PROCEEDINGS OP THE AMERICAN ACADEMY. 



ite-lanceolate :i<-iit .- lobes: corolla blue, 2 cm. long, the slightly pubes- 

 cenl tube twice exceeding the calyx; the blunt pilose galea one third aa 

 long as the broad lip: style densely bearded. — BIorelos, mountain 

 Bide al 2,150 m. alt., near Cuernavaca, Aug. 9, L898 ( C. G. PringU, 

 no. 7643). 



— *■* Stems and leaves glandular-pilose, hardly setulose. 



S. villosa. Stems 2. .3 to 3 dm. high, glandular-pilose below, 

 deusely glandular-yillous above and on the rhachis: leaves thick, pale 



green or cinereous, deltoid-ovate, mostly blunt at tip, Bubtruncate at 1 

 entire or obscurely undulate, 1.5 to 3 cm. long, on cinereous-pubescent 

 petioles 0.5 to 1.5 cm. long, the upper Bubsessile: peduncles <•.."> dm. 

 loii-j: verticels 3-6-llowered, all becoming remote, the lowest 2.~> 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, 1.8 

 cm. long; the glabrous tube slightly exserted ; the puberulent galea one 

 third as long as the broad lip : style bearded. — San Luis POTOSI, rare 

 in the mountains, San Miguelito, 187G (Schaffner, no. 678). 



_»«.*+ Stems and leaves mostly glabrous or puberulent or only sparingly 



setulose. 



= Upper lip of calyx tridentate. 



(/. Calyx-tube hispid: leaves from orbicular to ovate-triangular, 3 to 6 cm. long, 



2 to 4 cm. broad. 



86. S. GLECIIOMAEFOLTA, IIBK. 1. c. 290, t. 141 ; Beiith. in DC. I.e. 

 306; Hemsl. I.e. 55G; Briq. I.e. — South central and southern .Mexico. 

 San Luis Potosi, alt. 1,850 to 2,4G0 m., 1878 (Parr>/ oc Palmer, no. 

 756) : Oaxaca, near Reyes, alt. 2,060 to 3,070 m., Oct. 20, 1894 ( B. W. 

 Nelson, no. JT'.'l). Originally from near Guanajuato. 



j. 



b. Calyx glabrous or minutely puberulent : leaves narrowly ovate-triangular, 1 to 



1.76 cm. long. 



87. S. Forreri, Greene, Pittonia, i. 15G. — Durango, 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 

 with long fine viscid Bpreading liairs. 



38. S. prunifolia. Stems puberulent, decumbent, assurgent only at 

 the tips, 3 to "» dm. long: leaves orbicular to obovate, rounded or acutish 

 at tip. round or cuneate at base, crenate-serrate, the uppermost largest, 

 3 to 5 cm. long, 2.5 to 3.5 cm. broad, the lowest much smaller, dull green, 



