Tas. 4252. 
DATURA corniGera. 
Horn-bearing Datura. 
Nat. Ord. Sotane®.—Pentanpria Monoeynia. 
Gen. Char. Calyx tubulosus seepe angulatus, apice 5-fidus y. hine longitudi- 
naliter fissus, supra basin peltatum persistentem circumscisse deciduus. Corolla 
hypogyna, infundibuliformis, limbo amplo, patente, plicato, 5-10-dentato. Séa- - 
mina 5, corolle tubo inserta, inclusa v. subexserta; anthere longitudinaliter 
dehiscentes. Ovariwm incomplete 4-loculare, dissepimento altero supra medium 
deliquescente, altero completo, medio utrinque placentifero, placentis porrectis 
multiovulatis. Stylus simplex. Stigma bilamellatum. Capsula ovata y. sub- 
globosa, muricata v. aculeata, rarius levis, semiquadrilocularis, incomplete ad 
septa 4-valvis. Semina plurima reniformia. Hméryo intra albumen carnosum 
subperiphericus, arcuatus.— Herbee virose, annue v. perennes, nunc suffrutescentes 
v. arborescentes, in America et Asia tropica indigene, nec nunc per orbem diffuse, 
alie in hortis culte ; foliis alternis, petiolatis, oblongis v. ovatis, sepius angulato- 
dentatis ; floribus alaribus, solitariis, sepius magnis, albis, violaceis v. coccineis. 
Endl. 
Datura cornigera ; fruticosa pubescens, foliis integris sinuatis angulatisve, ca- 
lyce cylindraceo 5-costato hinc infra apicem longe tereti-acuminatum reflexum 
longitudinaliter fissum, corollz limbo patentissimo laciniis longissime acu- 
minatis, filamentis inferne hirsutis, ovario glabro. 
Avery singular Datura, the one here figured, has appeared in 
our gardens lately (the origin of which I have failed to ascertain), 
sometimes under the name of Brugmansia Knightii, and some- 
times under that of Datura frutescens; it 18 unrecorded, so 
far as I can discover, in any book to which I have access. With 
* the habit of Brugmansia, it has not the calyx of that supposed 
genus, which seems to have been founded upon the well-known 
Datura arborea of our gardens, which has an inflated, tubular, 
obtuse calyx, cut at the mouth into several segments. But. this 
18 not the D. arborea, Linn., and of Feuillée, Chil. t. 46 (which is 
the authority for Linnzus’ plant) nor of Ruiz and Pavon, t. 128, 
Where the calyx is acute and deeply cleft on one side, but ap- 
Pressed to the corolla, in that respect differing from our plant, 
of which the calyx is similarly cleft on one side, but runs out 
into a long, subulate, spreading point. The Linnzan plant 1s the 
SEPTEMBER lst, 1846, 2n2 
