vr. 



PLANT^ WRIGIITIAN^. 



39 



*> 



D. BRACHYSTACHYS (sp. nov.) : aniiua, humilis ; caulibus e basi ramosis difFusis 

 foliisque glaberrimis ; foliolis 5-11 cuncato-oblongis vel sublinearibus emarginatis 

 subtus rhacliique grosse glandulosis ; spicis breviter pedunculatis globosis demum 

 oblongis densifloris ; bractcis ovatis acuminatis concavis grosse glandulosis margine 

 haud scarioso villoso-ciliatis calyce paullo brevioribus subpersistentibus ; calyce seri- 

 ceo-villosissimo, dentibus setaceo-subulatis tubo sublongioribus coroUa flava pauUo 

 brevioribus ; petalis insequalibus. — Valleys, in alluvial soil, between the San Pcdro 

 and the Sonoita, Sonora ; Sept. (990.) — Stenis a span high, ascending, slender, 



sparingly glandular-punctate. Stipules subulate, minute, rather persistent. Lcaf- 

 lets 4 to 6 lines long, much like those of D. pogonathera and D. lasiathera. Spikcs 

 3 lines in diameter, in fruit only twice that length, very densely flowcred. Bracts 

 greenish, less boat-shaped than those of the above-mentioned species, and the mar- 

 gins not scarious, but more or less villous-ciliate, otherwise glabrous, or the upper 

 ones villous next the base. Calyx 2 lines long ; the teeth very plumose-villous, 

 equalling the small vexillum and the wings. Keel-petals more than twicc the size 

 of the others, 2-j lines long, including the claw^s. Ovary villous with white hairs 

 like those of the calyx. 



D. POLYGONOIDES (sp. nov,) i annua, humilis ; caule ramosissirao gracili foliisque 

 glaberrimis ; foliolis 3-9 lato-linearibus emarginatis basi acutis 

 rariter glanduloso-punctatis ; pedunoulis gracilibus ; spicis oblongis vel cylindricis 

 densifloris ; bracteis ovatis seu obovatis acuminatissimis membranaceis grosse-glan- 

 dulosis villoso-ciliatis calycem oequantibus persistentibus ; calyce sericeo-villosissimo, 

 dentibus subulato-setaceis tubo sequilongis ; petalis subasquilongis albidis. — Pcb- 

 bly bed of mountain torrents, near the coj^per mines, New Mexico ; Oct, in fruit 



glaucescentibus 



(991.) 



the 



Stems a span high, much branched ; the branches divergent, slender, 



Stipules subulate, minute, deciduous. Petiole with 

 Leaflets 4 to 6 lines long, a line and a half wide. 



sparingly glandular-dotted. 



rhachis half an inch long. 



veinless, apparently a little succulent, livid, the upper surface often purplish ; the 



Spikes half an inch to an inch long, 2 to 3 lines 



lands, 



slands few and rather small. 



Bracts a line and a half long, dotted with a few^ large 





thick, dense, livid. 



whoUy persistent, even after the fruited calyces have fallen, glabrous, except the 



villous margins and sometimes the base; the low^est broadly ovate, the upper obovate 



and tapcring to the base. The spccimens are nearly all in fruit ; the flowers found 

 at the apex of the spikcs bear petals, which are only a line in length, and white 



or whitish. 



Legume villous. 



D. FiLiFORMis (sp. nov.) i anuua ; caule exili erecto laxe ramoso foliisque glaber- 

 rimis ; folioJis 3 digitatis (raro 5 pinnatis) filiformibus parce punctatis ; pedunculis 

 filiformibus ; spicis capitatis demum cylindraceis densifloris ; bractcis ovatis acutis 

 carinatis ciliatis vix glandulosis calyce bre\ioribus caducis ; dentibus calycis sericeo- 

 villosissimi subulatis tubo jequalibus ; petalis suba?quilongis (purpureis vel roseis). 



Hill-sides near the copper mines, New Mexico; Aug., iu flower; Oct., in fruit. 



(992.) 



The most slender of all the species known to me ; the stcms from 4 to 10 



inches high, at length copiously and paniculately branched ; the filiform branches 

 spreading. Stipules minute, setaceous. Leaflets 6 to 12 lines long, usually longer 





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