GREENMAN. — CENTRAL AMERICAN SPERMATOPHYTES. 31 



5 parted, glabrous except at the very base; lobes 3 to 5 mm. long, 

 subrotund, imbricated: style 1.5 to 2 mm. long, persistent: corolla not 

 seen : nutlets broadly ovate or subrotund, dorso-vcntrally compressed, 

 10 to 12 mm. long, nearly or quite as broad, glocliidiate-iiispid on the 

 upper or outer surface, smooth beneath ; scar triangular-ovate. — 

 Mexico. State of Mexico : Fultenango Canon, altitude 2500 m., 9 

 October, 1902, C. G. Pringle, no. 11,350 (hb. Gr.) : '' Morelia 

 (Miclniacan) et de Moro Leon (Guanajuato)," A. JJiujes (hb. Gr., 

 collection of 1893). 



Lithospermura Nelsonii, n. sp. An herbaceous perennial : stems 

 erect from a ligneous base, 2.5 to 4.5 dm. high, sparingly branched 

 above, pubescent with spreading hirsute hairs intermixed with a sub- 

 appressed puberulence : lower stem-leaves oblanceolate, 3 to 7 cm. long, 

 8 to IS mm. broad, obtuse or subraucronate-acute, narrowed below into a 

 winged sub-petiolate base, hirsute-hispid on both surfaces, more or less 

 3-nerved ; upper stem-leaves sessile, oblong-lanceolate : flowers on short 

 pedicels, disposed in the axils of the uppermost leaves forming a leafy- 

 bracteate scorpioid raceme : calyx deeply 5-parted ; divisions linear, about 

 one half as long as the tube of the corolla, acute, hirsute-pubescent: 

 corolla salverforni, white or pale yellow; tube 13 to 1-4 ram. long, ex- 

 ternally appressed puberulent. within glabrous below, papillose-puberulent 

 above, bearing in the throat opposite the lobes 5 conspicuous folds ; lobes 

 subrotund, 4 to 5 mm. long and broad : stamens inserted high on the 

 corolla-tube, included: style persistent: nutlets white, ovate, 3 mm. 

 long, acute, slightly crested on the back toward the summit. — Mexico : 

 State of Xuevo Leon: Cerro la Silla, near Monterey, 20 March, 1902, 

 E. W. Nelson, no. 6682 (hb. Gr., and hb. U. S. Nat. Mus.). 



Caprarta 5IEXICANA, Moric. in DC. Prodr. x. 429. Specimens 

 collected by Mr. Vj. W. Nelson at Soto la Mariana, State of Tamaulipas, 

 no. 6643 (hb. Gr., and U. S. Nat. Mus.), agree in all details with 

 the original description of the above species. Although C. mexicana 

 has been considered by some authors to be identical with the widely 

 distributed species C. bijlora, L. , yet on account of its glabrous character 

 throughout, the uniformly narrow-lanceolate acuminate leaves, the long 

 anthers, and the more acute corolla-lobes, it seems to the writer well 

 worthy of specific rank. In addition to Mr. Nelson's no. 6643, the fol- 

 lowing specimens may be referred to C. mexicana, Moric : en route from 

 San Luis Potosi to Tampico, December, 1878, to February, 1879, Dr. 

 E. IF. Palmer, no. 1125 (hb. Gr.) ; Wartenberg, near Tantoyuca, prov. 

 Huasteca, State of Vera Cruz, L. C Ervendberg, no. 184 (hb. Gr.). 



