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BOTANY. 215 
the Rio Grande. Root 6-8 lines in diameter, 4—6 inches long, black, with long thick white 
fibres. Leaves 4-6 inches long, 4 an inch wide, deeply channelled, but not carinate, very 
glaucous, the dark greenish brown blotches more distinct on the upper than the lower surface. 
Scape 14-2 feet high. Spike about 6 inches long, with 12-15 flowers, Bracts subulate, longer 
than the pedicel, which is about one line long and articulated in the middle. The flowers, 
which аге of musky not disagreeable odor, are about 20” long; ovary 6", tube 9’”, the limb about 
6". Laciniz of the perianth at first green, afterwards on both sides (with the filaments) of a 
dirty purplish color Evidently near A. revoluta, Klotzsch; but that species has smooth-mar- 
gined leaves; limb of the perianth equal to the tube ; stamens free in the tube and longer than 
the limb. To Polyanthes Mexicana, Zucc. (which Kunth in Enum. 5, p. 847, says, is probably 
a species of Agave) it is still more nearly related, but that has leaves entire on the margin, 
with reddish dots ; flowers white, in pairs and sessile, the tube 18 lines long, segments only 
3-4 lines long. Capsule (immature) ovate oblong obtusely triangular. Nothing is said of the 
fragrance of the flowers. 
BROMELIACEZ. 
TILLANDSIA RECURVATA (Linn.; Le Conte in Ann. Lyc. N. York, 2, p. 132): caespitosa ; foliis 
subdistichis filiformibus teretibus anguste canaliculatis cinereo-lepidotis recurvatis; pedunculis 
folio longioribus unifloris glabriusculis ; bracteis 2-3 acuminatis calyce longioribus.—On trees, 
near the Rio Coleto, Texas; Thurber. On oaks and grape vines, Los Moros; Bigelow. Lower 
Rio Grande; Schott. San Fernando, Mexico; Berlandier, No. 818. The specimens are all in 
fruit, and the peduncles mostly one-flowered. Š 
TILLANDSIA USNEOIDES, Linn.; Ell. Sh. 1, p. 919 ; Le Conte, 1. с. On trees, western Texas, not 
found on the Rio Grande above the mouth of the Pecos. 
DaSYLIRION TENUIFOLIUM (n. sp.): caudice brevissimo; foliis linearibus gramineis planis vix 
rigidulis nitidis margine spinuloso-scaberrimis ; panicula elongata, ramis simplicibus distantibus 
sublaxifloris, basi subnudis; pedicellis flore sublongioribus; fructibus membranaceis, lobis 
carinatis vix alatis; seminibus oblongo-obovatis. Among rocks, borders of the Sabinal river ; 
Wright, (No. 1919.) Stony places on the high plateau of the upper Guadalupe, Texas ; Lind- 
heimer. Салех short and almost subterranean. Radical leaves about a foot long, 2-21 lines. 
wide, bright green and shining on both sides, much thinner in texture than in any other species 
of this genus, those of the scape gradually smaller. Stem or scape (including the panicle) about 
3 feet high. Branches of the panicle 2-3 inches long. Flowers solitary or somewhat fascicu- 
late, Perianth scarcely a line and a half in diameter. Ovary 3-celled, with 2 erect ovules in 
each cell; stigmas 3, oblong, sessile. Fruit rather broader than long, 3-lobed, one or two of the 
seeds commonly abortive. Seed minutely reticulate-rugose. Remarkable for the thin leaves 
and long naked panicle. 
DASYLIRION GRAMINIFOLIUM, Zucc. Pl. Nov. v. Min. FM fasc. 4, p. 225, t. 1. Hill sides and ` 
table land, western Texas, New Mexico, Chihuahua, and Sonora, westward to the Colorado. 
Neuvo Leon; Berlandier, (No. 3211. No. 694, Wright. No. 70, 212, 212, 419, and 549, 
Fener) Caudex 8-5 feet high, the upper part clothed with the long spiny-serrated recurved 
leaves. Scape 6-8 feet high. Flowers іп a long dense panicle of close spikes, which are sub- 
tended by broadly lanceolate clasping foliaceous spathcs. The male flowers with a sterile 
| vary, and the female with sterile anthers. Bracts and bracteoles broadly. ovate, acuminate 
