530 PROCEEDINGS OF THE AMERICAN ACADEMY. 
bicolor, Sessé & Moc. 1. c. 8. — Coahuila to Oaxaca, often cultivated. 
Without locality (Graham): Coanuita, garden at Saltillo, 1848-49 
( Gregg, no. 597): Zacatecas, in plaza, Monte Escobedo, Aug. 27, 
1897, and on the Sierra de los Morones, near Plateado, Sept. 1, 1897 
(J. NV. Rose, nos. 2641, 3627): San Luis Potosi, near Santa Maria, 
1876 (Schaffner, no. 669). 
+ + Leaves ovate, subcordate: corolla reddish. 
++ Leaves very rugose, 2.5 to 4 cm. long, on short petioles 4 to 8 mm. long. 
124. S. LANTANAEFOLIA, Mart. & Gal. l.c. 69; Benth. ].c. 3225 
Hemsl. 1.c. 559; Brig. 1. c.— Pursa, Atlixco, July 25—Aug. 1, 1893 
(Z. W. Nelson). Originally from Pursia. Seaton’s no. 500 from 
Maltrata, Vera Crvz, is near this species but not satisfactorily referable 
to it. 
++ ++ Leaves hardly rugose, 0.5 to 1 dm. long, on petioles 1.5 to 2.5 em. long. 
125. S. populifolia. Shrub with gray bark: branchlets and petioles 
lanate with yellowish white pubescence: leaves ovate, bluntly acuminate, 
crenulate, green and puberulent above, white-velutinous beneath: raceme 
1.5 dm. or less in length, simple or with a tendency to branch ; verticels 
about 6-flowered, becoming a little remote: bracts ovate, acuminate, 1 cm. 
long, purple-lanate without, soon deciduous: calyx campanulate, in an- 
thesis 1.8 cm. long, the tube twice or thrice exceeding the deltoid <P 
minate lobes; upper lip entire, lower 2—lobed: corolla pilose, reddish, 
8.5 em. long, the galea slightly exceeding the lip: long-exserted po 
tion of style glabrous. —Jaxisco, Bolafios, Sept., 1897 (J. V. Hose 
no. 2862). 
* * Pubescence of dorsal and ventral portions of calyx dark red, of the sides eo 
liant yellow: corolla dark red; the lip much shorter than the galea: leay 
ovate-lanceolate, acuminate at base, very rugose a 
126. S. Prrtrert, Briq. Bull. Soc. Bot. Belg. xxx. pt. 1, 237. De 
scribed from Costa Rica, and doubtfully referred by its author to this 
group. 
herbs. Racemes dense, thick, with large thick firm leaf-like persistent 
bracts. Corolla blue or white, twice or thrice as long as the calyx- 
* Villous herb: leaves ovate, rounded or subcuneate to a winged petiole: verti- 
ry many-flowered, somewhat remote. 
127. S. ctrnopopromes, HBK. |. c. 294,t. 145; Benth. 1.c.; Hemsl. 
lc. 554; Brig. Le. S. parquerensis, Moc. & Sess. in Benth. Lab. 2735 
§ 5. Macrostacuyar, Benth. Pubescent large-leaved shrubs OF — 
