286 MEXICO. ILeguminosm. 



4. D. gracilis ; fruticosa paniculatim ramosa, ramis divaricatis gracillimis filiformibus, 

 foliolis 4-6-jugis oblongo-obovatis integerrimis supra oblique linearis, racemis terminalibus 

 laxis paucifloris, calycibus obovatis sulcatis dentibus late ovatis acutis brevibus, legumine 

 triangulari-compresso. 



This species and the foregoing differ considerably in habit from the other Dalem that are known to us, 

 especially in the lineated upper side of the leaves, the absence of black glandular dots, the decidedly racemed 

 fructification, deeply furrowed calyces, with sometimes glands (which are not discoloured) between the 

 furrows. The petals are very deep and bright purple. 



(There is still a 5th and very distinct-looking species of Dalea in the collection, but too imperfect to justify 

 our framing a specific character for it. It is annual, throwing up several branches from the base, which are 

 long, twiggy, green, striated, and glabrous. The few imperfect leaves show that the leaflets are 4-5-jugate, 

 linear-oblong, glabrous, with black glandular dots beneath. Spikes terminal, on short branches, ovato-cylin- 

 drical, dense. Bracteas ovate, aristate, ciliate, as large as the calyx, with large black glands on the back. 

 Calyx with long hairs and long setaceous, ciliated teeth.) 



1. Tephrosia toxicaria. Pers. — Plum. Ic. t. 135. 



This seems a very variable species in the size of the leaves and number of the leaflets. It is the same, 

 however, as what we have received from Guiana and the West Indies, and which we believe to be the true 

 T. toxicaria. 



1. Indigofera Anil. L. 



2. I. torulosa ; electa fruticosa laxa ramosa, foliolis ellipticis mucronatis 4-6-jugis 

 appresso-pubescentibus, racemis fructificantibus elongatis folio longioribus, leguminibus 

 erectis longe cylindraceis torulosis subarticulatis longe rostratis. 



A very remarkable species of Indigofera, with large leaflets, some of them nearly an inch in length, and 

 legumes nearly 2 inches long, erect, slender, 8-10-seeded, much contracted between the seeds, and internally 

 separated by dissepiments as in Sesbania, yet in other respects the habit and pubescence are quite those of 

 the present genus. lad. galegoides, DC. n. 39, from Ceylon, has the foliage and the long erect beaked 

 legumes of this plant, but the fruit is broader and not torulose. I. Domingensis and I. disperma are 

 described as having torulose fruit, but their other characters are extremely different from our species. 



1. Neurocarpum multiflorum ; fruticosum volubile, foliis sublonge petiolatis trifolio- 

 latis, foliolis petiolulatis ovato-ellipticis lateralibus obliquis omnibus coriaceo-membrana- 

 ceis supra glabris reticulatim venosis subtus pubescenti-hirsutis, racemis multifloris, 

 legumine lato-lanceolato acuto basin versus contracto pubescenti-velutino. 



We possess no flowers of this species. The legume is 3 inches long and f of an inch in its greatest diame- 

 ter, compressed, clothed with tawny velvety down, with a strong prominent nerve running the whole length 

 through the middle of each valve. The peduncles evidently have many flowers, and in the old flower-stalks 

 there is a large tubercle at the insertion of each pedicel. 



1. Sesbania tomentosa ; ubique molliter tomentosa fruticosa, foliolis 8-10-jugisoblongo- 

 ellipticis utrinque obtusis supra (sub lente) minutissime atro-punctulatis, racemis folio 

 brevioribus, leguminibus longis gracilibus teretiusculis cuneatis glabris vix torulosis folia 

 sequantibus longe rostratis. — Hab. Acapulco. 



