220 
AMARYLLIDACEiE. 
the latter. Perianth of Hymenocallis, habit of Ismene. 
Scape round (Qu. whether always?) which is two- 
edged in Hymenocallis. Natives of Mexico and 
Texas. 
1. Glauca. PI. 35. f. 1. seed PL 41. f. 32. Bulbus 
indusiis nigris ; folia erecta, glauca, plus minus 
obtusa, 2^ unc. lata, sesquipedalia ; scapus teres, 
14 uncialis, 3-(4?) florus ; spatha valvis angustis, 
erectis, sejunctis, biuncialibus ; germen sessile, 
loculis dispermis ; tubus viridis, sexuncialis vel 
ultra; limbus circiter 3|, albus, patulus, sepalis 
viridi-costatis; corona ultra-uncialis, patula, rotata, 
alba, macula magna in medio viridi, dentibus senis 
magnis reflexis, margine laciniato ; filamenta pa- 
tulo-conniventia, subulata, 1^- uncialia ; antherae 
apice et basi retroflexis ; semina glauca, nitida. 
This beautiful plant has erect glaucous leaves, 2^ 
inches wide, obtuse (but not equally so in all indi- 
viduals), about a foot and a half long ; the scape 
round, with angles nearly obsolete, about 14 inches 
high ; spatlie two inches, valves erect, narrow, 
disjoined, and not covering the umbel ; flowers 
three (or four ?) sessile ; tube above six inches, 
green ; limb about 3f, white, ribbed with green ; 
cup above an inch long, patent, rotate, with large 
interstaminear teeth, and a jagged reflex margin; 
filaments 1|- long, anthers recurved at both ends ; 
cells two-seeded ; seeds large, glaucous, smooth. It 
is a greenhouse plant, liking a very sandy soil, and 
perfect rest in the autumn and winter, approaching 
in habit to Ismene, but in the perianth to Hymeno- 
callis rotata. Before I had seen the flower of this 
plant I entertained no doubt that it would prove 
to be an Ismene, and when the flower appeared, I 
had much difficulty in satisfying myself whether 
it should be considered generically distinct from 
Hymenocallis or not. I have not been able to 
learn that such a diversity of anther exists in any 
well-constituted genus, and particularly the sepa- 
ration of Habenaria from Orchis seems to be very 
analogous. I have since been fully satisfied of the 
diversity of this plant by the vegetation of the 
seeds, which, though sown in May (the plant 
