536 PROCEEDINGS OF THE AMERICAN ACADEMY. 



ing the lobes; upper lip oblong-ovate, entire, blunt, lower with 

 two acuminate narrower lobes: corolla-tube glabrous, twice exceeding 

 the calj \ : galea Blightly pilose at tip, Bhorter than the lip. — San Li is 

 Potosi, in the mountains near Morales, 1876 (Schqffher, no. 61 

 called " mirto grande." Habitally this plant suggests S. fulgent ^ var. 

 Boncheana, Benth., but it is readily distinguished by its less pubescent 

 leaves, shorter calyx and Blightly pilose galea. 



O O Pubescent herb with ovate obtiiM leaves canescent beneath. 



ill. S. OBTD8A, .Man. & Gal. I. c. 72 j Benth. in DC. I.e. 334 1 

 "\';m Houtte, Fl. des Serres, xiv. t. 1412 (?) ; Hemsl. I.e. ii. 562. — 

 Described from Oaxaca. Various plants are cultivated under this 

 name, but the figure above cited perhaps best represents the Bpecii s. 



b. Calyx glabrous or barely puberulent at base. 



145. S. oresbia. Small shrub, 2 to 3 dm. high : branches purplish, 

 puberulent in lines or glabrate: branchlets short, leafy mostly at the 

 tip: leaves firm, ovate, acute at each end, appressed-serrate, glabrate, 

 1 to 2.5 cm. long: racemes 1 dm. or less in length; verticels 2-1- 

 fiowered: bracts firm, ovate, acuminate, 1 em. or less long, persistent: 

 pedicels 3 to 7 mm. long, puberulent: calyx purple-tinged, in antic 

 1 to 1.2 cm. long, puberulent within; the tube thrice exceeding the 

 broad ovate mucronate-acuminate lobes: corolla 2 cm. long; the gla- 

 brous Btrongly ventricose tube one half longer than the calyx : the pilose 

 galea hardly equalling the lip: style glabrous. — San Luis POTOSI, 

 in the mountains, San Rafael, 1870 (Schqffher, no. 000) ; without lo- 

 cality, alt. 1,850 to 2,400 m., 1878 (Parry & Palmer, no. 740). 



= = Pubescence of branches and leaves stellate. 



140. S. oaxacana. Very branching shrub : the bark pale gray, the 

 VOune brunches and branchlets white with stellate tomentum : lea 

 ovate, truncate or cordate at base, 1 cm. or less in length, pale green and 

 strongly rugose above, white-tomentose beneath, crenate, one-half longer 

 than the tomentose petioles: racemes 6 cm. or less long: the verticels 

 mostly 2-flowered, 1 to 1.5 cm. apart : bracts ovate-lanceolate, caducous : 



pedicels 3 to mm. Ioult, glandular-pil : calyx open-campanulate, 



glandular-pilose, in anthesis 8 to 10 mm., in fruit becoming 1.3 to 

 1.5 cm. long: the upper lip broad-ovate, mucronate, somewhat bidentate, 

 the lower lip with 2 ovate-lanceohite acuminate lobes: corolla somewhat 

 idular-pilose ; the strongly ventricose tube twice exceeding the calyx; 

 the gal. -a anil lip subequal : style bearded. — Oaxaca, La Iloya Canon, 



