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32 PLANTE FENDLERIANE. 
132. D. rormosa, Torr. in Ann. Lyc. New York, 2. p. 178, and.in Emory’s Re- 
port, cum ic. Dry, gravelly hills, in sunny places, Santa Fé; May to June. A dwarf 
shrub, from half a foot to one foot high; the stem and —* very crooked and intri- 
cately entangled. . 
133. D. Jamesu, Torr. § Gray, Fl. 1. p. 308. Gravelly hills, in sunny places, 
from Santa Fé east to McNees Creek ; May (in flower) and August (in fruit). — The 
D. laxiflora; but the spikes (one inch long) are thicker and denser, the bracts of a different form and not so 
coriaceous and black-glandular ; the petals are purple, and the tenth stamen is present. (While this sheet is 
passing through the press, I am furnished with specimens from Western Texas, collected by Mr. Wright, who 
informs me that it occurs rather abundantly from Seguin to the Rio Grande.) 
From Dr. Engelmann I have received the following apparently undescribed species of this genus, collected 
by Dr. Wislizenus, namely : — 
Datea LEucostacHys (sp. nov.) : suffruticosa, humilis, cinereo-puberula ; caulibus ramosis glandulis pro- 
minulis conspersis ; stipulis setaceis caducis; foliolis 5-7 oblanceolatis cuneato-oblongisve obtusis petiolulatis 
glabratis utrinque (supra creberrime) glanduloso-punctatis ; spicis ad apicem paniculatis pedunculatis cylindri- 
cis densis ; bracteis subulatis calyce pubescente breviter 5-fido brevioribus deciduis ; petalis albis, vexillo sub- 
orbiculari alas et carinalia consimiles fere equante. — At Cosiquiriachi, in the Sierra Madre, Dr. Wislizenus ; 
flowering in September. — Shrub 2 or 3 feet high; branches leafy to the top, where it bears several handsome 
spikes (which may be likened to those of Eysenhardtia) of white flowers: the petals are two or three lines in 
length, besides the slender claw. Leaflets one half to three fourths of an inch long. Ina single flower I 
found six petals and two pistils. The claws of the wings and keel-petals are adnate to the stamineal column 
only at the base (not to the middle, as the genus is characterized) ; and the insertion is little higher in the fol- 
lowing and in several other species. The anthers are commonly tipped with a gland, which in this species is 
remarkably conspicuous. 
D. Wistizeni (sp. noy.): sericeo-villosa ; caulibus seu ramis gracilibus erectis; stipulis setaceis ; foliolis 
7 - 9-jugis parvulis (2 lin. longis) oblongis obtusiusculis pulchre sericeis subtus cauleque parce nigro-glandu- 
liferis ; spicis solitariis pedunculatis oblongis; bracteis lanceolato-setaceis calycibusque equilongis sericeo- 
villosissimis ; laciniis calycis tubo longioribus subulato-aristatis basim versus utrinque unisetulosa; petalis albo- 
purpureis omnibus juxta apicem glandula lineari notatis, carina alas dimidio vexillum multo superantibus. — 
Llanos, in the Sierra Madre, west of Chihuahua, Dr. Wislizenus ; flowering in October. — Stems or branches 
a foot high. Flowers showy, one third of an inch long. 
D. scoparta (sp. nov.) : cano-tomentulosa deinde glabrata, undique pustulato-glandulifera ; caulibus (basi 
fruticosis ?) ramosissimis gracilibus rigidis inferne denudatis ; foliis ramealibus plerumque simplicibus spathu- 
lato-linearibus subsessilibus margine revolutis parvulis rariusve trifoliolatis ; stipulis minimis ; capitulis 5-10- 
floris laxiusculis pedunculatis corymboso-paniculatis; bracteis minimis ovatis caducis; calycibus incanis 
breviter 5-dentatis gibboso-arcuatis ; petalis pulchre violaceis omnibus ad apicem uniglandulosis subzequilongis. 
— Jornado del Muerto, between Santa Fé and El! Paso del Norte, Dr. Wislizenus ; August. — A remarkable, 
Broom-like species; the rigid stems, &c., roughened all over with large, pustulate glands; the diffuse branch- 
lets terminated by small and globular heads of (in the specimens) deep violet flowers. Petals two lines long ; 
the oblong-oval vexillum as long as the keel. 
