g2 BOTANICAL GAZETTE [ FEBRUARY 
spadix is interfoliar, from three to four feet long, its stem slender 
and flattened; branches slender, elongated, paniculate, grace- 
fully drooping, coated with hoary tomentum, the _ ultimate 
divisions terete; bracts ovate, acute, chestnut-brown ; spathes 
six or eight, sheathing the peduncle, thick and firm, deeply two- 
cleft at the apex furnished with a narrow membranaceous red- 
brown border. 
Margins of swamps adjacent to the Chockoloskee river in 
southwestern Florida. 
This second species of Serenoa differs from the type of the 
genus, the well-known saw palmetto of the southern states, in its 
arborescent habit, more elongated spadix, much smaller flowers, 
and smaller globose fruit and seeds, and is certainly a most 
interesting addition to the trees of the United States. The 
existence of an undescribed arborescent palm on the Chocko- 
loskee river was known to me as long ago as 1887, when it was 
discovered without flowers and fruit in the Royal Palm Hum 
mock, not far from the town of Everglade, by the late P, We 
Reasoner, of Oneco, Florida; but it was not until the past 
season that I obtained the flowers and fruit from Mr. R. G 
Corbitt, of Immockalee, Florida, who has found this palm grow 
ing abundantly in the swamps about thirty miles southeast of 
Lake Trafford, near the head of the Chockoloskee. In Decei 
. ber 1898, seeds of Serenoa arborescens were distributed from the 
Arnold Arboretum as “ New palm from the Florida everglades. 
“Ulmus (Microprecea) serotina, n. sp.— Arborescent. Leaves 
oblong to oblong-obovate, acuminate, variously oblique at the 
base, coarsely and doubly crenulate-serrate, membranaceo 
glabrous and lustrous above, puberulous below on the prominelt 
midribs and veins. Flowers perfect, autumnal, racemose, < 
buds in the axils of leaves of the year, long-pedicellate. Calye 
six-parted to the base, its divisions oblong-obovate, rounded - 
the apex. Ovary sessile, narrowed below, hirsute. Sa 
stipitate, oblong-elliptical, deeply two-parted at the apex, ee 
on the margins. Seeds obovate; raphe conspicuous. bes: 
leaves, stipules and bracts unknown. 
