* 



VI. PLANT.^ ■WRIGHTIAN.E. 39 



I). BRACHYSTACHYS (sp. nov.) : annua, humilis; caulibus e basi ramosis diffusis 

 foliisque glabernmis ; foliolis 5-11 cuneato-oblongis vel snblinearibiis cmarginatis 

 subtus rhachique grosse glandulosis ; spicis breviter pedunculatis globosis clcmum 

 oblongis densifloris ; bractcis ovatis acuminatis concavis grosse glandulosis marline 

 baud scarioso villoso-ciliatis calyce paullo brevioribus subpersistcntibus ; calyce scri- 

 ceo-villosissimo, dentibus setaceo-subulatis tubo sublongioribus corolla flava paidlo 

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

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

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

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

 3 lines in diameter, in fruit only twice that length, very densely flowered. 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 twice the size 

 of the others, 2^ lines long, including the claws. Ovary villous with white hairs 

 like those of the calyx. 



D. FOLYGoxoiDES (sp. nov.) : annua, humilis ; caule ramosissimo gracili foliisque 

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

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

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

 dulosis villoso-ciliatis calycem a^quantibus persistentibus ; calyce sericeo-villosissimo, 

 dentibus subulato-setaceis tubo fequilongis ; petalis subfcquilongis albidis. — Peb- 

 bly bed of mountain torrents, near the copper mines, New Mexico ; Oct., in fruit. 

 (991.) — Stems a span high, much branched ; the branches divergent, slender, 

 sparingly glandular-dotted. StijDules subulate, mintite, deciduous. Petiole with 

 the rhachis half an inch long. Leaflets 4 to 6 lines long, a line and a half wide, 

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

 glands few and rather small. Spikes half an inch to an inch long, 2 to 3 lines 

 thick, dense, livid. Bracts a line and a half long, dotted wath a few large glands, 

 w^holly persistent, even after the fruited calyces have fallen, glabrous, except the 

 villous margins and sometimes the base ; the lowest broadly ovate, the upper obovate 

 and tapering to the base. The specimens are nearly all in fruit ; the flowers found 

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

 or whitish. Legume villous. 



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

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

 filiformibus ; spicis capitatis demum cylindraceis densifloris ; bracteis ovatis acutis 

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

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

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

 (992.) — The most slender of all the species known to me ; the stems 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 



