124 T UNITED STATES AND MEXICAN BOUNDARY. 
Wright. Valley of the Rio Conchos, below Santa Rosa, Chihuahua; Gregg. A narrow leaved 
form ; collected form is No. 1237, Berlandier. Collected at San Juan del Rio, between the city 
of Mexico and Queretaro. А shrub 4 to 8 feet high. Leaves 1-21 inches long, sparsely 
pubescent on both sides; petioles 1-3 lines long. Flowers and fruit nearly as in the preceding 
species. 
. ОвтЕВА THURBERI (n. sp.): foliis (parvis) oblongis lanceolatisve pubescentibus; floribus 
fasciculatis quasi verticillatis foliis longioribus ; calyce glanduloso-pubescente profunde 5-par- 
titis, laciniis subulato-setaceis glanduloso-pubescentibus hirsutisve corolle tubo vix triplo- 
brevioribus. Along water-courses, Las Animas, Sonora; June; Thurber. Sierra del Pajarito ; 
Schott. Cañon of Guadaloupe; April; Capt. E. K. Smith. An ornamental shrub, 3-4 feet 
high, with a gray or whitish bark that separates in shreds. Jeaves about three-quarters of an 
inch long, obtuse and acute, Flowers mostly resupinate. Corolla dull red, an inch or more 
in length ; the tube funnel-form ; lower lip 3-parted, the divisions linear-lanceolate. Capsules 
mostly 2-seeded, as long as the fructiferous calyx. 
DREJERA JUNCEA (n. sp.) : aphylla (un semper?) ; ramis virgatis minute pubescentibus ; spicis 
remotifloris paniculatis; calyce profunde 5-fido glabrescente, laciniis subulatis corolle tubo 
angusto multo brevioribus. In a sandy ravine, La Peña, Cohahuila ; November; Thurber. 
Plant 3-4 feet high, entirely leafless where found by Mr. Thurber, but it may bear leaves 
early in the season. Flowers sessile in unilateral spikes, without either bracts or bracteoles. 
Calyx at first somewhat pubescent, but at length nearly or quite smooth. ‘‘Corolla scarlet,”’ 
an inch or more in length; the tube slender; lower lip deeply 3-parted, the divisions linear 
and narrow. Capsule ovate above the middle, tapering to a narrow base below ; 2-seeded. 
Besides the four species of Drejera here described, we have, from the collections of Dr. Gregg, 
another, which does not appear to have been noticed hitherto. It was found on the battle field 
of Paso del Gallinero. The specimens are not sufficient for a full description, but the following 
character will serve for its identification : 
DREJERA GREGGII (n. sp.): ramis bifariam pubescentibus ; foliis ovatis scabriuscule pubescen- 
tibus subulato-venosis ; floribus fasciculatis foliis longioribus ; calyce incano pubescente, lobis 
lanceolatis tubo subzqualibus. А stout shrub. Leaves 1-14 inch long, somewhat roughly 
pubescent on both surfaces; petioles 1-2 lines long. Flowers dull purplish red, 14 inch long; 
the segments of the lower lip nearly as long as the tube, and very narrow. Fruit not known. 
iPHONOGLOSSA PILOSELLA. Monechma Pilosella, Nees, l. c., p. 412./ Adhatoda dipteracantha, 
Nees, 1. c., p. 396. Western Texas, on the Lower Rio Grande, and in the adjoining Mexican 
States,common; flowering throughout thesummer. (No. 1458, Wright, 396, 1850, and 501, 1815, 
Lindheimer. Plant 6 to 12 inches high, suffruticose, much branched. Leaves half an inch to 
one and a half inch long. Flowers three-fourths of an inch long, pale purple. This plant is 
not a Monechma, for the capsuie is 4-seeded, and the habit is different. It is still further removed 
from Adhatoda. We think it belongs to the genus Siphonoglossa, ( GZrsted, 1. c., p. 159,) the 
character of which must be slightly modified to receive it. The calyx is 5-parted and the 
narrow upper lip of the corolla is emarginate. Тһе anther-cells are nearly parallel and placed 
one above the other; the lower one conspicuously mucronate, and the upper one less so. No. 
1213 of Coulter’s Mexican collection is apparently an undescribed species of this genus. 
Diantuera AMERICANA, Linn. Sp. 1, p. 27; Torr. Fl. N. York, 2, p. 27 Justicia pedunculosa, 
Michx. Fl 1, p. 7. Rhytiglossa pedunculosa, Nees, 1. c., p. 339. Mildle and western Texas. 
44. 4» м 
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