504 PROCEEDINGS OF THE AMERICAN ACADEMY. 
leaves bluntish at tip, cuneate at base to a long slender petiole, coarsely 
crenate-serrate, especially above the subentire base; margin and petiole 
densely short-pilose; upper face dark green, puberulent or glabrate; 
lower face paler, minutely pubescent: racemes very short-pedunculate, 
0.5 to 2 dm. long; verticels 83—6-flowered, the lower 1.5 cm. apart, the 
upper approximate: pedicels 3 mm. long, minutely white-pilose: calyx 
ciliate on the strong nerves, narrowly campanulate, in anthesis 8 mm. 
long; the tube twice exceeding the ovate acuminate lobes; upper lip 
entire: corolla 1.3 to 1.5 em. long, the white tube somewhat exserted; 
lips blue, the lower pubescent beneath, twice as long as the pubescent 
upper one: style glabrous. — Coanuria, damp bottom-lands, Saltillo, 
Sept., 1898 (dw. Palmer, no. 8334). This as well as three other species, 
S. lanceolata, S. tiliaefolia, and S. hispanica, are called chia by the Mex- 
icans, and a cooling beverage known likewise by that name is prepared 
from the seed. (See Rose, Contr. U. S. Nat. Herb. v. 225.) 
++ ++ Perennials, mostly decumbent at least at base. 
= The lower verticels becoming remote. 
a. Corolla white or pale: stem strongly decumbent or subrepent: leaves ovate- 
elliptic to oblong, glabrate: peduncle 0.5 to 1.5 dm. long. 
39. S. assurcens, HBK. Nov. Gen. & Spec. ii. 293; Benth. l.¢ 
304; Hemsl. l.c. 553; Briq. 1. c.— MicHoacay, grassy hills near Patz- 
cuaro, July 18, 1892 (C. G. Pringle, no, 4150); Oct. 20, 1898 (Z. W- 
. Holway, no. 3184) ; originally collected near the same town, alt. 2,100 
m., by Humboldt & Bonpland. According to Kunth the color of the 
corollae is “pallide violacea? (carnea ex Bonpl.),” but neither of the 
recently collected specimens shows any violet tinge. 
b. Corolla blue or violet. 
1. Pilose-hirsute : internodes short: leaves oblong to rhombic-ovate: calyx hi 
ow, in anthesis 5 to 7 mm. long; tube equalling the lobes; upper lip tri 
spid 
den- 
40. S. prunetLorpes, HBK. l.c. 289; Benth. 1.c. 305; Hemsley, 
lc. 563; Briq. l.c. S. glechomaefolia, Wats. Proc. Am. Acad. xv 
137, not HBK. SS. tricandra, Briq. Ann. Conserv. Jard. Bot. Geneve, 
ii, 133. — Coahuila to Oaxaca. Coanvrna, mountains 64 km. south of 
Saltillo, July, 1880 (Hdw. Palmer, no. 1098) ; limestone hills, Carneros 
- Pass, Sept. 27, 1890 (C. G. Pringle, no. 3681): Nusvo Leon, Lerlos 
July, 1880 (Edw. Palmer, no. 1097): Durango, Cacaria, Aug. 5, 1898 
E. W. Nelson, no. 4651): Mex1co, without locality, 1848-49 (Gregg 
no. 406); cool slopes, Sierra de las Cruces, Aug. 21, 1892 (0. @. Prue 
