GREENMAN. — CENTRAL AMERICAN SPERMATOPHYTES. oo 



long, deeply 5-parted, puberuleiit ; the posterior segment mucli smaller 

 than the other segments: corolla, 2-lipped, purple; tube slender, cylin- 

 drical, 22 mm. long, externally pubescent; upper or posterior lip sub- 

 erect, entire, acute ; lower or anterior lip deeply 3-lobed, spreading : 

 capsule 12 ram. long, pubescent : seeds verrucosa. — Mexico. State of 

 Tamaulipas: Soto la Marina, 2 IMarch, 1902. E. W. Nelson, no. 6650 

 (hb. Gr., and hb. U. S. Nat. Mus.). State of Nuevo Leon : near 

 Monterey, 19 March, 1900, William M. Canhy, no. 187 (hb. Gr.). 

 State of Hidalgo: Zimapan, Th. Coulter, no. 1213 (hb. Gr.). This 

 number of the Coulter collection was referred by Hemsley, Biol. 

 Cent. -Am. Bot. ii. 516, to Siphonoglossa pilosdla, Torr., from which 

 species it is certainly distinct. From the shape of the corolla the 

 species here described might very well pass as a Siphmioglossa, but the 

 character of the inflorescence and the absence of a spur or any appen- 

 dage on the lower anther-cell place it rather with Justicia {Dianthera). 

 In general appearance Justicia (Dianthera) Canhyi is not unlike certain 

 Rhinacanthi of the Old World. 



Raxdia obcordata, Watson, Proc. Am. Acad. xxiv. 53. The only 

 recorded station for this species is the original locality, namely, on high 

 mesas near Guaymas, State of Sonora, Mexico. Its occurrence at Man- 

 zanillo, State of Colima, where excellent fruiting specimens were secured 

 by Dr. Edward Palmer, 2 to 18 March, 1891, no. 801 (hb. Gr., and 

 hb. U. S. Nat. Mus.) indicates that the species has a rather extended 

 distribution along the west coast of Mexico, 



Crusea subulata, Gray, var. leiocarpa, n. var. Carpels 2 mm. 

 long, glabrous : habit and other characters of the species. — INIexico. 

 State of San Luis Potosi : Alvarez, 28 September to 3 October, 1902, 

 Dr. Edioard Palmer, no. 147 (hb. Gr., and hb. U. S. Nat. Mus.). 



Stevia vernicosa, u. sp. Shrub, 1 m. or less high : stem branched ; 

 branchlets terete, often verrucose, glabrous or somewhat pubescent 

 towards the inflorescence, reddish : leaves opposite, lance-elliptic to 

 oblanceolate, 1.5 to 4.5 cm. long, 4 to 8 mm. broad, obtuse, rather closely 

 serrulate or crenate-serrulate, narrowed below to a subpetiolate base, 

 glabrous, glandular-punctate and glutinous : heads about 12 mm. high, 

 5-flowered, disposed in dense cymules terminating the stem and branches : 

 involucre 6 to 8 mm. high ; bracts of the involucre 5, lanceolate, acute 

 or obtuse, glutinous : pappus of 1 to 5 setae nearly or quite equalling 

 the corolla-tube, and of 5 minute scales : corollas white : mature achenes 

 4 to 4.5 mm. long, puberulent. — Mexico. State of Morelos : on dry 

 ledges, Sierra de Tepoxtlan, altitude 2310 m., 15 March, 1899, C. G. 



VOL. XL. — 3 



