THE YUCCEAE. 93 
Y. aloifolia tenuifolia (Haworth) Trelease. 
Y. tenuifolia Haworth, Suppl. 34. (18 19). — Regel, Gartenflora. 8 3 35. — 
Lemaire, Ill. Hort. 18;93.—Baker, Journ. Linn. Soc. Bot. 18:3 
221. — Engelmann, Trans. Acad. St. Louis. 3 37. 
Habit of the preceding, the leaves frequently falcate, often purplish, 
with somewhat roughened dorsal ridges and very sharp but fine marginal 
toothing. 
A cultivated form, doubtless of the coast region, and 
found by the writer in April 1901 escaped along the 
shady roadside near the Grant-Pemberton monument at 
Vicksburg, Miss. — in which city, however, the usual cul- 
tivated plant is typical aloctfolia. 
Y. aloifolia Menandi Trelease. 
A sport, seemingly of f. tricolor, with the rigidly much recurved leaves 
about .3 m. long, 5 to 10 mm. wide, somewhat rough on both margin and 
dorsal ridges, of a deep green, with yellow and occasionally red median 
band or lines narrow on the upper surface but, as in forma tricolor, 
occupying a large part of the lower surface. — Plate 50. 
Purchased from Mr. W. A. Manda (from the Louis 
Menand collection) in July 1901, under the name Y. quad- 
ricolor. 
Y. aloifolia Yucatana (Engelmann) Trelease. 
Y. Yucatana Engelmann, Trans. Acad. St. Louis. 8 37. (1873).— Baker, 
Journ. Linn. Soc. Bot. 18 3221.— Trelease, Rept. Mo. Bot. Gard. 
3162. pl. 45. 
Trunks clustered from the base, as much as 7 m. high. Leaves rather 
flexible. Inflorescence tomentose. Stamens shorter than in the type. 
Yucatan, collected by Schott (706) in 1865 at the ruins 
of «* Nohpat ”’ or ‘‘ Najput.’’ 
From all of the other baccate Yuccas, Y. alotfolia, in 
the comprehensive sense, differs obviously in its evidently 
stalked ovary and coreless purple-fleshed fruit. Its geo- 
graphical distribution is such as to lead to the conclusion 
that it may have originated in the eastern islands of the 
West Indian group, from which it may have spread, by aid 
of ocean currents, to the Atlantic states and Bermudas, 
and, by way of Jamaica, to the Mexican coast, isolation 
