494 PROCEEDINGS OP THE AMERICAN ACADEMY. 



lance-subulate, 5 to 7 mm. long : |n<licels 2 to 4 nun. long: calyx in 

 anil i mm., in fruit '.• mm. long; tin- lobes equalliug tin- tabe, 



narrow-ovate, with long Bubalate aristiform tips, tin- pubescence Less 

 spn idinj than on the tube: corolla 7 to 8 mm. long; tin- sparingly 

 pilose lip- deep blue. — S. priroii/cs. Gray in Wats. Proc. Am. Acad. 

 xxi. 135; Rose, Contrib. V. S. Nat. Herb. i. 110; not Benth. — North- 

 west* rn Mexico. Chihuabi a. Hacienda Shu Jose\ 1885 (/■.'</>/•. Palmer, 

 no. t'.l): Sonora, by shaded water-courses and in canons, Alamos, Sept., 

 1890 (Edw. Palmer, no. 680, 681). 



2. Calyx pubescent with gland-tipped hairs; upper lip generally tridentate : 

 racemes paniculate, ."> cm. or Less in length. 



10. S. lateriflora. Bushy-branched annual, 2.5 to 8 dm. high : Btema 

 sparingly retrorse-pilose: leaves ovate or rhombic-ovate, thin, blunt or 

 acutish at tip, cuneate to slender petioles 5 cm. or less long, coarsely 

 crenate-dentate, minutely setnlose on both faces or glabrate: flowers 



solitary or in 2's, all remote, the lowest <».7 to 1 cm. apart: bracts ovate. 

 acuminate, 1 to 2 mm. long: pedicels 2 to -1 mm. long: calyx in 

 anthesis 2 to 3 mm., in fruit 5 to G mm. long; the tube twice exceeding 

 the broad blunt subulate-tipped lobes. — SONOBA, about abandoned gar- 

 dens, Guaymas, Oct., 1887 (Edw. Palmer, no. 320). Ilabitally re- 

 sembling Scutellaria lateriflora. A fragmentary specimen collected by 

 Xantus at Cape St. Lucas, Lower California, may belong here. 



+- >•- Calyx not glandular. 



-♦Leaves thin, membranaceous, the primary ones 4 to 9 cm. long: verticels G- 



niany -flowered. 



11. S. TILIAEFOLIA, Vahl. Leaves broad- or rhombic-ovate, cordate 

 truncate or rounded-cuneate at base, sparingly pubescent on both fa 

 dark green above. — Symb. iii. 7 ; Jacq. Hort. Bchoenb. iii. 2. t. 25 1 ; 

 Benth. I.e. 299; Hemsl. 1. c. 566. S. Jimbriata, HBK. I.e. 299, t. 

 149. — Common in tropical America, extending northward through 

 Mexico. Chihuahua, Valley of Chihuahua, Sept 17. 1885 (C. G. 

 Pringle, no. 550 ; damp places, Canon de Pilares, Sept. 22. 1891 (0. I . 

 Hartman, no. 749): Coahuila, Saltillo, 1848-49 (./. Gregg, no. 542); 

 Soldad, Sept.. 1880 and in shaded places, Saltillo, Sept., 1880, 1898 

 ( Edw. Palmer, nos. 1062, 835) : DuBANGO, abundant in shade near 

 Durango, Sept., 1896 (Edw. Palmer, no. 572): s.v\ Luia Potosi. in 

 deep shade near the city, 1876 (S<-hafner. no. G74), alt. 1,850 to 2,460 

 m., 1878 {Parry & Palmer, nos. 748, 746$) : Aquas Camkntks (Hart- 

 wcg, no. 169) : Mexico, Valley of Mexico, May 5, 18G5 (Bourgeau, no. 



