510 PROCEEDINGS OF THE AMERICAN ACADEMY. 
2. Racemes longer, slender: pedicels 2 to 8 mm. long, equalling the calyx. 
56. S. rinrpes, Benth. 1. c.; Hemsl. 1.c. 556. 4S. polystachya, var., 
Benth. Pl. Hartw. 50, not S. polystachya, Ort. Described from Regla. 
Not seen. 
b. Racemes short, simple, solitary, or paniculate, with some remote lower verticels 
in the axils of the upper foliar leaves: calyx hispidulous, with short deltoid- 
subulate teeth. 
57. S. menthiformis. Tall herb, 6 to 8 dm. high: stems strongly 
angular and furrowed, cinereous-puberulent, freely branching: leaves 
ovate or orbicular-ovate, acuminate, round-cordate at base, crenulate- 
serrate, 1.5 to 5 cm. long, 1 to 3.5 em. broad, dark green and glabrate 
above, pale and minutely puberulent or glabrate beneath, on slender 
cinereous-puberulent petioles 1 to 2 cm. long; raceme, excluding the 
remote axillary verticels, 2 to 5 em. long; the crowded verticels 6—20- 
flowered: pedicels barely 1 mm. long: corolla blue, pilose, 1.2 em. long; 
the tube twice exceeding the calyx; the lip hardly equalling the galea: 
style glabrous or slightly bearded. — S. polystachya, Donnell Smith, 
Enum. Pl. Guat. iv. 126, not Ort. S. purpurea, Donnell Smith, 1. ¢. im 
part, not Cav.— Costa Rica, Cartago, alt. 1,300 m., Oct., 1887 (Juan 
J. Cooper in exsicc. J. D. Smith, no. 5902); San Francisco de Guada- 
lupe, alt. 1,200 m., Jan., 1894 (A. Yonduz, no. 1781); Rio Turrialba, 
Prov. Cartago, alt. 500 m., March, 1894 (J. D. Smith, no. 4919). 
Habitally resembling forms of Mentha aquatica. 
ce. Racemes simple, with no axillary lower verticels. 
1. Raceme spiciform, densely flowered, 4 to 10 cm. long: leaves broad-ovate, 1 
dm. long, 6 dm. wide, on long petioles: corolla white. 
58. S. Cararra, Briq. Ann. Conserv. Jard. Bot. Gendve, ii 142. 
Described from Costa Rica. No specimen seen. 
2. Raceme elongate, loosely-flowered, at least the lower verticels remote. 
O Leaves broad-ovate, glabrous, coarsely and irregularly serrate : pedicels 2 to4 
mm. long. 
59. S. pracnyroponta, Briq. l.c. 149. SS. albiflora, var. cacrules- 
cens, Gray in Wats. Proc. Am. Acad. xxii. 445, in part. — JALISCO, 
on sides of cafions, Rio Blanco, Sept., 1886 (Hdw. Palmer, no. 598); 
hillsides near Guadalajara, Sept. 27, 1889 (0. G. Pringle, no. 2463). 
Placed by Briquet under the group OCord/foliae, Benth., but the leaves 
are rounded-truncate at base, not cordate, and in habit as well the plant 
much more resembles members of the Vulgares. 
