506 PROCEEDINGS OF THE AMERICAN ACADEMY. 



no. 601): Chiapas, without locality, 1864-70 {Ghiesbreght, nos. 738, 

 741, 747); near San Cristobal, alt. 2,150 to 2,460 ra., Sept. 18, 1895 

 {E. W. Nelson, no. 3142) : Guatemala, Santa Rosa, Depart. Baja 

 Verapaz, alt. 1,530 m., April, 1887 {H. von Tuerckheim in exsicc. J. D. 

 Smith, no. 1193); Santiago, Depart. Zacatepequez, alt. 2,000 m., 1891 

 (^Rosalio Gomez in exsicc. J. D. Smith, no. 823) ; Sacabaja, Depart. 

 Quiche, alt. 1,230 m., March, 1892, and Castillas, Depart. Santa Rosa, 

 alt. 1,230 ra., Dec, 1892 {Heyde & Lux in exsicc. J. D. Smith, uos. 

 3128, 4395). Originally described from Patzcuaro, Michoacan. 



Var. LATiFOLiA, Benth. Leaves elliptic-oblong, acute. — PI. Hartw. 

 21, & in DC. I.e. — Jalisco, Bolaiios {Hartweg, no. 171). 



= = Similar: stems minutely retrorse-pubescent : leaves not canescent beneath. 



a. Leaves oblong or narrowly ovate-elliptic, 1.5 to 3 cm. long, tliickish, rugose, 



green, sometimes a little pubescent on the nerves beneath, obscurely crenate or 

 entire : lower verticels a little remote : calyx 5 to 6 mm. long the upper lip very 

 short, the lower with 2 ovate lobes 1 mm. long. 



44. S. GUADALAJARENSis, Briq. Ann. Conserv. Jard. Bot. Geneve ii. 

 132. S. helianthemifolia^ van, Gray in Wats. Proc. Am. Acad. xxii. 445, 

 not S. helianthemifolia, Benth. — Jalisco, among rocks, Rio Blanco, 

 Sept., 1886 {Edw. Palmer^ no. 556) ; dry rocky hills near Guadalajara, 

 Nov. 1, 1893 (a G. Pringle, no. 4624). 



b. Leaves lanceolate or oblong-linear, bluntish, dull, minutely puberulent or gla- 



brate : deltoid acuminate calyx-lobes subequal. 



1. Stems numerous, assurgent, 2 to 2.5 dm. high, leafy chiefly near the base : leaves 



entire, glaucous : calyx white-puberulent, in anthesis 6 mm. long. 



45. S. Teresae. Leaves short-petioled, 2 to 2.5 cm. long, 0.25 to 

 0.5cm. broad: peduncles 1 to 1.5 dm. long; raceme rather loosely flow- 

 ered ; the lower verticels 1 cm. apart, 2-6-flowered : bracts ovate-lance- 

 olate, acuminate : calyx dark blue : corolla 1.3 cm. long, the galea densely 

 pubescent. — Tepic, near Santa Teresa, top of Sierra Madre, Aug. 13, 

 1897 {J. N. Rose, no. 2233). 



2. Stems few, erect, 6 to 8 dm. high : leaves remote, serrate, not glaucous : calyx 



minutely pubescent, not whitened, in anthesis 4 to 5 mm. long. 



46. S. muscarioides. Stems simple or sparingly branched ; inter- 

 nodes 1 dm. or less long; leaves short-petioled, 5 to 6 cm. long, 0.75 to 

 1 .5 cm. wide : peduncles 2 dm. or less long : bracts minute, caducous : 

 lower verticels 2 or 3 cm. apart, the others crowded, 8-20-flowered : 

 pedicels spreading and drooping: calyx dark blue and green: corolla 

 1.2 cm. long; the lower lip much exceeding the pubescent galea: style 

 slightly exserted, bearded. — Northwestern Mexico. Chihuahua, base 



