192 
Lejeunia clypeata (Schw.) Sulliv. Dickey Creek, alt. 2,500 ft. 
On trees. 
Lejeunea (Harpa-Lejeunea) ovata Tayl. Dioicous, pale green, 
loosely czespitose; stems prostrate, with few radicles, irregu- 
larly branched; leaves contiguous or somewhat imbricatad, 
obliquely spreading, convex and often reflexed at apex, ovate, 
mostly acute, entire, the antical margin arching over the stem 
but not beyond it; leaf-cells hexagonal, with slight thickenings — 
at the angles, ocellz 1 to 3, near the base of the leaf, elliptical ; 
lobule ovate, inflated, strongly arched at the keel, the margin 
curved, mostly involute, 1-toothed at the apex and excurrent 
into the leaf; underleaves broadly cuneate, emarginate-bilobed 
with rounded lobes and sinus; female inflorescence terminal, 
with I or 2 subfloral branches; bracts erect, ovate, obtuse, 
the lobule plane (?) obtuse in Taylor's herbarium, and I find 
them to be the same in all particulars except the form of the 
bracteole ; in Taylor's specimens this is distinctly emarginate 
at the apex for about 1 its length; while in the Virginian 
specimens, as stated in the description, the bracteole is rounded 
or very slightly retuse at the apex. The species may be dis- 
tinguished from our other Leewzee by its more acute leaves 
and by the blunt lobes of its underleaves. (Plate 81.) 
DESCRIPTION OF FIGURES. 
I. Plants, about twice natural size. 
2. Portion of stem, antical view. 
3. Portion of stem, postical view. 
* 4. Cells from base of leaf, showing ocellæ. 
5. 9 inflorescence, postical view. | 
6. Bracteole, from Taylor's specimen, narrowly winged at 
the keel; bracteole obovate, entire, rounded or slightly retuse at 
the apex. ; 
Stems about 5 mm. long, 0.05 mm. in diameter; leaves 
0.30X0.15, lobule 0.15><0.08; leaf-cells in middle of leaf averag- 
ing 0.018 mm. in diameter, ocellæ 0.030X0.024; underleaves 
o.08x0.01; bracts 0.50X0.25 (lobule 0.40x0.16); bracteole 
0.30X0.20. 
