FERNALD. — MEXICAN SALVIAS. 511 



O O Leaves narrow-ovate, lanate beneath in the axils of the nerves, finely and 

 regularly serrate : pedicels 1 mm. long. 



60. S. Ghiesbreghtii. Tall, 1 m. (?) or less high : stems puberu- 

 lent, with long ascending branches : leaves long-acuminate, rounded at 

 base, 3 to 6 cm. long, 1 to 3 cm. wide, puberulent above, pilose or 

 glabrate beneath, except for the often densely lanate mid-nerve, on 

 petioles 1 cm. or less in length : racemes slender, flexuous, 1 to 2.5 dm. 

 long; verticels 10-20-flowered, the lower 1.5 cm. apart: bracts small, 

 ovate-attenuate, caducous : calyx hispid, with short-deltoid ciliate subu- 

 late-tipped teeth: corolla pale blue, pilose, 1.2 cm. long; the ventricose 

 tube twice exceeding the calyx ; galea and lip subequal : style bearded. 

 — S. polystachya, Hemsl. 1. c. 563, in part, not Ort. — Chiapas, among 

 the mountains, July, 1864-70 (Ghiesbreght, nos. 129, 743). 



= = Calyx in anthesis about 5 mm. long. 



a. Lower surfaces of firm leaves the pedicels and the calyces permanently canes- 



cent with fine stellate pubescence. 



61. S. Palmeri, Gray, Proc. Am. Acad. xxi. 408. — Chihuahua, 



hillsides at the Frailes, on the mountains above Batopilas, 1885 (Edw. 

 Palmer, no. 259). 



b. Lower surfaces of leaves the pedicels and the calyces canescent with appresscd 



short hairs: racemes very elongated, the verticels subequally remote: broad 

 lip of corolla much exceeding the galea. 



62. S. lkptostachys, Benth. Lab. 258, & in DC. 1. c. 308; Hemsl. 

 1. c. 560 ; Briq. in Engl. & Prantl, 1. c. — South central Mexico. 

 Jalisco, near Plateado, Aug. 31, 1897 (J. JV. Hose, no. 2682) : More- 

 los, hills near Cuernavaca, Nov. 10, 1895 (C. G. Pringle, no. 7078). 



c. Lower surfaces of leaves canescent-tomentose, glabrate or glabrous: calyx vil- 



lous or hirsute : galea and lip of corolla subequal. 



63. S. polystachya, Ort. Leaves broad-ovate, tomentose beneath : 

 racemes panicled: calyx canescent, villous. — Dec. 55; Cav. Ic. i. 17, 

 t. 27; HBK. I.e. 296; Benth. I.e.; Hemsl. I.e. 563; Briq. I.e. S. 

 Unearifolia, Lag. Nov. Gen. & Spec. 2. S. Durandiana (as subspecies), 

 Briq. Bull. Soc. Bot. Belg. xxx. 238, & Ann. Conserv. Jard. Bot. 

 Geneve, ii. 138. — An extremely variable species, the typical form seen 

 only from Michoacan, Tlalpujahua {Graham). 



Var. caesia, Briq. Leaves narrow-ovate to ovate-lanceolate, glaucous, 

 glabrous or minutely pubescent, not tomentose, beneath : inflorescence as 

 in the type but racemes more elongated, the lower verticels often remote : 



