520 PROCEEDINGS OF THE AMERICAN ACADEMY. 
in anthesis 6 to 7 mm. long; the tube twice or thrice exceeding the 
lance-subulate teeth; upper lip tridentate: corolla 1.2 cm. long, short- 
pilose, the galea about equalling the lip: style slightly bearded.— 
Mexico, without locality ( Coulter, no. 1120). 
++ ++ Leaves narrowly triangular-ovate, truncate or slightly cordate at base, on 
thickish winged petioles, closely and densely white-pubescent beneath. 
92. S. canpicans, Mart. & Gal. ].c. 61; Benth. l.c. 8315; Hemsl. 
l. cc. 554; Briq. 1.c.— Puxrsta, limestone hills between Tehuacan and 
Esperanza, alt. 2,000 m., Dec. 21, 1895 (0. G. Pringle, no. 6249). 
Essentially the type station of the species. 
++ ++ ++ Leaves narrow-ovate or oblong, attenuate at base to short petioles, or the 
upper subsessile. 
= Calyx ovate tubular, with short blunt lobes, glandular-pubescent, in anthesis 5 
to 6 mm. long: leaves closely white-pubescent beneath. 
93. S. rHymorpes, Benth. Lab. 255, & in DC. 1. ¢. 314; Hemsl. ].¢ 
566; Brig. l.c.— Southern Mexico. Purnia, limestone hills betweev 
Tehuacan and Esperanza, alt. 2,000 m., Dec. 21, 1895 (0. G. Pringle; 
no. 6251): Oaxaca, Mitla (G. Andrieux, no, 150); vicinity of Coixt- 
lahuaca, alt. 2,150 to 2,300 m., Nov. 12, 1894 (B. W. Nelson, no. 1915). 
Species based in part on Andrieux’s plant. 
= = Calyx tubular-campanulate, with acuminate lobes, not glandular-pubescen’ 
in anthesis 6 to 8 mm. long: leaves sparingly stellate puberulent or 8 
rate, 
a. Leaves oblong, 1 to 2.5 cm. long, the uppermost subsessile. 
1. Leaves finely stellate-puberulent at least when young. 
94. S. coahuilensis. Freely branching mostly from the stout 
woody base ; branches assurgent, 0.5 to 7 dm. high; bark pale brow?, 
finely stellate-puberulent or glabrate: leaves confined mostly to the lower 
portions of the branches: racemes elongated, becoming 0.5 to 3.5 
long, the rhachis often glandular-puberulent; verticels mostly 2-flowered, 
‘all remote, the lowest 2 to 3 cm. apart: bracts ovate-oblong, acuminate, 
caducous: pedicels filiform, 2 to 4 mm. long: calyx granulose-puberu- 
lent; tube twice exceeding the ovate-lanceolate subequal lobes ; upper 
lip entire: corolla 1.5 em. long, blue with white centre; the glabrous 
tube nearly twice exceeding the calyx; the slightly pilose galea one hi 
as long as the broad lower lip.— S. chamaedryoides, Wats., Proc. A™ 
Acad. xviii. 137, in part, not Cav. —Coanuita, rocky bill, Saltillo, 
1878 (Parry, no. 29), May, 1898 (Edw. Palmer, no, 194) ; Partass 
June, 1880, and Lerios, July, 1880 (dw. Palmer, nos. 1072, 1064). 
