PLANTS N0V-a3 TIIURBERIAN,E. 313 



panulato paullo brevioribus ; leguminibus parvis (3 lin. diamctro) globosis inflatis vix 

 apiculatis chartaceo-membranaceis glabellis oligospermis, suturis baud introflexis. — 

 Near Fronteras, &c., Sonora; on dry plains; June, 1851. — Stems ratber rigid, erect 

 or ascending, 6 to 10 incbes bigb, leafy. Leaflets crowded, 4 or 5 lines long. Pedun- 

 cles balf an incb or an incb long ; tbe ratber close spike of about tbe same length. 

 Pods not stipitate. Ovules 8 or 10. — An inconspicuous, but well-marked species, 

 quite difi'erent from any known to me. 



Daubentonia ■? Thurberi (sp. nov.) : frutescens ; 1 - 2-pedali ; ramis petiolisque 

 dense viscoso-hirtellis ; stipulis lanceolatis acuminatis striatis deciduis ; foliolis 9 - 1 2- 

 jugis ovalibus subretusis venosis glabris margine ciliolatis ; racemis laxe paucifloris ; 

 calyce glabro bracteolis 2 caducis stipato, tubo cyatbiformi basi oblique longius an- 

 gustato, limbo 5-fido, lobis subtequilongis, 2 superioribus oblongis acutiusculis, 3 in- 

 ferioribus ovalibus obtusissimis ; ovario pubescente longe stipitato. — Hill-sides, Mabibi, 

 Sonora; June, 1851. — Tbis must belong to tbe Galegete, near Sesbania, to which 

 genus, in the absence of the fruit, I should have doubtfully referred it, except that 

 the stigma is obtuse and terminal, and the ovary, neither much elongated, nor contain- 

 ing more than 10 or 12 ovules, is raised on a slender stipe, and manifestly shows, in 

 the most advanced flower examined, two sharp edges at each suture, which I take to 

 be the rudiments of four wing-like margins. On the latter account I provisionally 

 place the species in Daiihentonia ; although the calyx differs widely from the known 

 species of that genus. Tbe calyx is four lines long, with an attenuated and oblique 

 turbinate base of considerable length; and the lobes (H Imes long) are broad, ven- 

 ulose, and three of them very obtuse ; their margins sparingly glandular or ciliolate. 

 The (yellow) corolla is fully as large as in the Texan Daubentonia. Bractlets as long 

 as the narrowed base of the calyx, oblong, obtuse, faintly striate, caducous, as are 

 the similar bracts. Stipules 2 or 3 lines long. Rhachis of the abruptly pinnate 

 leaves 4 or 5 inches long, including the short proper petiole. Leaflets thin, half an 

 inch in length. 



'»'• 



Leguminosa. — I may notice, for the purpose of directing towards it the attention 

 of future explorers, an undetermined Leguminous tree called Tesota by the Mexicans, 

 and said by Mr. Thurber to be common on the table-lands of the lower part of the Rio 

 Gila. But no one appears to have preserved specimens of it except Mr. Thurber, who 

 found it only with unripe fruit, in July, 1852. From the vegetation one would incline 

 to refer the plant to the suborder Coesalpinea; ; but the withered remains of the andrce- 



voL. V. new series. 43 



