178 PROCEEDINGS OF THE AMERICAN ACADEMY 



but the latter are from 13 to 19 in number. And tlie pedicels of Coul- 

 ter's plant, D. sennoides, Benth., are sometimes nearly twice the length 

 of the calyx. 



Harpalyce arborescens (sp. nov.) : foliolis ovali-ellipticis utrinque 

 rotundatis vel retusis glabratis subtus i*esinoso-atomiferis ; labiis calycis 

 obtusis (18). — The same species, but with adult leaves, which are 

 more coriaceous, I have from Coulter's Mexican collection, ticketed 

 Harpalyce formosa. If Mr. Bentham had possessed this when he wrote 

 his little paper on Harpalyce in the third volume of Hooker's Journal of 

 Botany, probably he would have distinguished it from the original spe- 

 cies, still known only by MoQino and Sesse's drawing. The tapering 

 of the leaflets to the base might indeed have been charged to the rude- 

 ness of the drawing, but the drawing plainly represents an herb, which 

 Coultei-'s and the present specimens are ligneous. Ervendberg's mem- 

 orandum states that his were taken from " a small tree, growing on high 

 and dry land." The specimens are poor, with very few flowers ; these 

 accord throughout with the genus, except that the obovate vexillum 

 bears a pair of small and rather obscure inflexed auricles. The ten 

 stamens are monadelphous, with the tube cleft to the base : the anthers 

 are hnear and basiflxed. 



Zornia diphylla, Pers., var. reticulata, Griseb. (12) ; Stylosanthes 

 ^rac^7^s, H. B. K. ? (11); ^schynomene Americana, L. (16); Desmo- 

 dium trijiorum, DC. (32, 34), D. barbatum, Benth. (31), D. incannm 

 or adscendens, DC. (43), and two undetermined species (29 and 299). 



Piscidia Erythrina, L. (9); some Dalbergieous tree, but the speci- 

 mens imperfect (28). 



Centrosema Virginianvitn, Benth. (39) and C. Plumieri, Benth. (36, 

 362); Phaseolus Truxillensis, H. B. K. (41); Stenolobium cceruleum, 

 Benth. (38), and some apparently common Galactia (40) ; Rhynchosia 

 Garibcea, DC, with some R. minima (35), and R. reticulata, DC. (37, 

 42, 311). 



Cassia hirsuta, L. (21), O. obtusifolia, L. (24), C. Humboldtiana, 

 DC. (25), and C. patellaria, DC. (14). 



Guilandina glabra, Mill. (229) ; Casparea latifolia, the Bauhinia 

 latifolia, Cav. Ic. t. 405, the same as Berlandier's no. 2189. 



Neptunia lutea, Benth. (3) ; Prosopis (^Algarobia) didcis, H. B. K., the 

 same as Hartweg's no. 70 (319) ; Mimosa Jioribunda, H. B. K. (1), and 



Mimosa Ervendbergii (sp. nov.) : M. rubicauli simillima, sed villoso- 

 pubescens, aculeis minoribus magis retrorsis armata, seta? interpinnas 



