ROBINSON. — MEXICAN PLANTS. 325 



nerved, strigose-ciliate : flowers roseate, in globose heads ; peduncles 

 2.5 cm. long, borne by 2's or 3's at the nodes of unbranched terminal 

 racemes: heads (including exserted stamens) l.G cm. in diameter: 

 bractlets small, spatulate or oblanceolate, with thickened pubescent acute 

 ends : calyx translucent, closely appressed, scarcely toothed but strongly 

 ciliate: corolla 4-lobed, 4-nerved, '1.1 mm. long, the lobes oblong, sub- 

 carinate, tomeutulose toward the summit, about half the length of the 

 tube : stamens 4 ; filaments 3 times as long as the corolla, slightly en- 

 larged above : fruit green, 3-4-jointed, constricted between the oval 

 moderately flattened strigose segments, stipitate, 3 to 3.4 cm. long. 8 mm. 

 broad. — Collected at Salina Cruz, State of Oaxaca, Mexico, by Charles 

 C. Deam, 21 December, 1898, no. 113. 



This species (of § Eumimosa) is most nearly related to M. jisilocarpa, 

 Robinson, but is readily distinguished by its strigose fruit and narrow 

 strigose not soft-pubescent leaflets. 



M. psilocarpa. Branches ligneous, terete, unarmed, roughened by 

 ferrugineous lenticels : petioles 2.3 to 5'.4 cm. long; leaves . 1 -jugate ; 

 leaflets on each division normally 3 pairs (the inner member of the low- 

 est pair often reduced), obovate, oblique or semicordate at the base, firm 

 and subcoriaceous, 2.8 to 3.6 cm. long, 1.5 to 2.5 cm. broad, when young 

 finely pubescent upon both surfaces, in age pah', lead-colored (in dried 

 specimens), slightly lucid, glabrate except for a few short appressed or 

 incurved stramineous bristles upon the slightly thickened margin and 

 upon the nerves beneath: peduncles about 3 cm. long, divergent, borne 

 singly or by twos at the nodes of short terminal racemes ; bracts subu- 

 late, ciliate ; flowers perfect (so far as observed), capitate : calyx 0.7 mm. 

 long, slightly toothed, ciliolate: corolla 4-toothed, 4 mm. long, 4-nerved ; 

 the teeth lanceolate, one-third the length of the tube : stamens 4 : ovary 

 slender-stiped ; pod 2-4-jointed, glabrous, wholly unarmed, 2 to 3 cm. 

 long exclusive of the stipe (nearly half as long), 1.3 cm. broad, con- 

 stricted between the sesfments, mucronate. — Mountain woods between 

 " S. Carl and S. Bartolo Yuahntepec," Oaxaca, collected by C. & E. Seler, 

 6 January, 1896, no. 1727. This species belongs to Bentham's series 

 Caslae and may be placed near M. lactijlua, Delile, although in habit 

 and large leaflets it suggests some of the Sensitivae. 



C'lphea. Reipublicae, Rob. & Sea. Proc. Am. Acad, xxviii. 100. 

 The type number of this species, unfortunately cited at the time of 

 publication as Pringle's no. 4112, is his no. 4142. 



Vernoxia liatroides, DC. Prodr. v. 34 (1836). Add syn. Eupa- 

 tor'tum tulanum, Klatt, Abh. Naturf. Ges. Halle, xv. 323 (1882). 



