502 PROCEEDINGS OF TIIF. AMERICAN ACADEMY. 



S. angufUfolia, v&t. glabra, Wats. Proc. Am. Acad, xviii. 13s, in part, 

 not Gray. — San Luia Potosi, without locality, alt. 1,840 to 2,460 m., 

 1878 {Parry & Palmer, no. 7G0). 



2. Leaves oblanceolate, pinnately nerved. 



88. S. firma. Stems decambent at base, glabrous below, glandular- 

 pabesceut in the inflorescence, 1 to 5 dm. high : leaves 1 to 8 cm. long. 0.5 

 to - cm. broad, acute or blunt at tip, cuneate at base, crenulate-8< rrate, 

 thick ami firm, glabrous, above Bublucid : peduncles elongated, l 2-brao- 

 teate; racemes becoming .'! dm. loDg; verticels all distinct, 3-6-flowered, 

 the Iowerm08t 5 to 8 Cm. apart : bracts short, broad-ovate, subulate-tipped : 

 pedicels short : calyx campanulate, in authesis 5 to G mm., becoming 1 cm. 

 long; tube twice exceeding the lobes ; upper lip broad-ovate, the teeth 

 subulate; lobes of the lower lip with long subulate tips: corolla 1.5 cm. 

 long, the tube slightly exserted, the dark blue lower lip with a pule Bpol 

 in its centre and twice exceeding the puberulent blunt galea: style 

 bearded. — >S. glcchomaefolin, AVats. I.e. not 1I15K. — Jalisco, on hill- 

 sides, Rio Blanco, June, 1886 (Edw. Palmer, no. 01). 



= = Upper lip of calyx entire. 



a. Glabrous : leaves oblong-lanceolate : bracts round, obtuse or sbort-mucronato. 



34. S. lakvis, Benth. Lab. 251, & in DC. I.e. 303; Hemsl. I.e. 

 550; Briq. I.e. & in Engl, & Prantl, I.e. — Not seen. Described from 

 Mexico and from near Tlalpujahua, MlCHOACAN. 



I. Pubescent: leaves elliptic-oblanceolato or narrowly obovatc : bracts ovate, long- 

 attenuate. 



35. S. sinaloensis. Stems slender, 2 to 2.5 dm. high. Blightly 

 branched, below short- hirsute, above and in the inflorescence densely 

 pubescent with long straight line viscid hairs: leaves acatish, the upper 

 half appressed-serrate, the lower half subentire, subcuneate to a Best 

 base or obscurely shorl petioled; those of the main stem 3 to 4 pairs, the 

 uppermost largest, 3.5 to 6 cm. long, 1.2a to 2 cm. broad, above appressed 

 short-setulose or glahrate, beneath pale, minutely sctulose on the nervi - : 



peduncle 6 to 9 cm. long, about equalling the leafy lower portion of the 

 plant; raceme becoming 1 dm. or so long; verticels 8— 6-flowered, the 

 lower 4 cm. apart, the upper rather approximate: bracts pilose-hispid, 

 colored, soon deciduous: calyx densely pilose-hispid with fine viscid hairs, 

 in anthesis 5 to 7 mm. long; the tube twice as long as the broad abruptly 

 Bubulate-tipped lobes : corolla 1 . ") cm. long, the tube slightly exserted. the 

 dark blue lip with a pale spot in its centre twice exceeding the puberu- 





