GREENMAN. — PHANEROGAMS. 489 



ratliei' closely appressed-pubescent cymes : bracts and bractlets linear- 

 subulate : flowers 4-merous : calyx-tube densely covered witli a vvliite 

 appressed pubescence ; lobes subequal, about 1 mm. long, obtuse, ciliate : 

 corolla white, 3 mm. long, villous-pubescent on the throat and on the 

 tube : fruit not seen. — Collected by C. G. Pringle on hills near Tampico, 

 16 June, 1897, no. 6641. 



Lobelia tarsophora, Seaton in Mss, Stem erect, simple or 

 branched at the base, 3 to 4.5 dm. high : leaves petiolate, membrana- 

 ceous, ovate-lanceolate, acuminate, unequal and oblique at the base, un- 

 dulate and mucronate-denticulate, nearly smooth, 5 to 7.5 cm. long, 2.5 

 cm. broad . racemes long, loosely flowered : bracts 2 mm. in length : 

 pedicels 10 to 16 mm. long, spreading, becoming horizontal in fruit: 

 corolla blue and white, 4 to 5 mm. in length, the lips unequal : calyx- 

 tube becoming hemispherical in fruit, its rim and ribs persisting after the 

 dehiscence and flxll of the small globose half inferior capsule. — Collected 

 by Henry E. Seaton on river banks near Cordoba, altitude 830 m., 20 

 August, 1891, no. 417. This species is well marked by its foliage, 

 horizontal pedicels, and the peculiar persistence of the rim and nerves of 

 the calyx-tube as a basket-like frame after the dehiscence of the capsule. 

 In habit it most nearly resembles L. novella., Rob. 



Zexmenia Pringlei. Perennial, stems striate, covered with an 

 arachnoid pubescence : lower leaves opposite, the upper alternate, short- 

 petiolate, ovate, 1.5 to 3 cm. long, two thirds as broad, obtuse at the 

 apex, suljcordate at the base, rugose and appressed-tuberculate-hispid 

 above, densely toraentose beneath; petioles 4 to 7 mm. long, narrowly 

 winged ; heads including the rays 3 cm. broad, terminating the stem and 

 branches, usually on long peduncles : involucre about 3-seriate ; outer 

 scales foliaceous, the inner straw-colored, oblong to oblong-lanceolate, 

 about 1 cm. long, acutish, distinctly 1-nerved, glabrous or nearly so on 

 either surface, long-ciliate on the erose margins toward the apex : pales 

 lance-attenuate, about equalling the flowers, somewhat hirtellous on the 

 distinct keel : ray-flowers 1-seriate, rather numerous (about eighteen) ; 

 rays oblong, 12 mm. long, nearly one half as broad ; akenes triangular 

 becoming somewhat verrucose at maturity : disk-flowers about 1 cm. 

 long ; pappus bisetose with minute intermediate scales ; mature akenes 

 laterally compressed, with a narrow ciliated cartilaginous wing, glabrous 

 or a little roughened, about 4 mm. long. — Collected by C. G. Pringle 

 on limestone hills near Tehuacan, altitude 2000 m., 5 August, 1897, no. 

 6768. 



