270 Evu-LEJEUNEA. 
yellowish-green form growing chiefly about the roots of trees and shrubs, 
on old trunks, and on shaded rocks, not often mixed with other species ; 
the whitish form almost invariably on living leaves of trees, and even of 
herbs, where it is often accompanied by other foliicolous Lejeunce. 
In typical specimens, especially of the subspecies albida, the leaves on 
the main stem—or, at least, on its lower half—have the lobule decurrent 
at the fold (which is usually straight—not convex) at an angle of about 
45°; and incurrent (or obliquely ascending at the incurved free upper 
margin, at about the same angle; whence the upper margin of each lobule 
is in a line with the lower margin (the fold) of the next lobule on the 
opposite side of the stem, so that the outlines of the lobules form, as it 
were, a series of W’s, written consecutively across the stem. 
In the upper leaves of the stem, and in nearly all the branch-leaves, 
the lobules are more turgid (rounded at the fold), and their upper margin 
more incurved—more nearly transverse; so that their outlines are not 
quite continuous with those of the leaves on the opposite side of the 
stem. 
In all forms of the species the leaves are obliquely oblong, narrowed 
at the insertion, then suddenly dilatated at the antical base, but not 
wider there than at the middle, so that they are rarely to be called 
somewhat ovate, and still more rarely semicordate. 
Medial leaf-cells smallish (,—,"™ Im diameter) nearly equal and equi- 
lateral, those towards the apex being very slightly smaller and towards 
the base slightly elongate; all pellucid, containing little chlorophyll, and 
with the walls very slightly (or not at all) thickened at the angles. 
Underleaves usually cloven to the middle (especially in the subspecies 
albida), but often to only 4 of their length; the deepest sinuses being 
acute, the shallowest obtuse: both states occasionally found on the same 
plant. The segments, mostly subobtuse, are often decidedly acute, and 
it is common to find the two segments of unequal length—the shorter 
being obtuse, the longer acute. The largest and best formed underleaves 
are just half the length of the adjacent leaves—rarely a little longer and 
never much shorter. Their normal form is orbicular—sometimes slightly 
lengthened (oval), at others slightly widened (oblate), more rarely sub- 
ovate. 
Inflorescence monoicous, the 9 flowers being terminal on the branches, 
or even on the stem, and subtended by a simple or repeatedly proliferous 
innovation—or sometimes by a pair of opposite ones. Unisexual plants 
are not infrequent, but rarely occur apart from normal monoicous ones. 
Bracts about as long as stem-leaves, in fertile flowers—but sometimes 
much longer in sterile flowers—complicato-bilobed, with obtuse lobes, the 
autical lobe lanceolate, the postical only half as wide and usually shorter. 
Bracteole usually narrow lanceolate—varying to cuneato-lanceolate and 
obovate, and wider in the white than in the yellow varieties; in fertile 
flowers it is cloven to about the middle, but in sterile flowers more 
deeply. 
Perianth very slightly emersed, green, pyriform, rounded at the apex, 
and with a rostellum of moderate length, slightly compressed, obtusely 
bicarinate at the back, and very slightly keeled along the middle of the 
depressed upper face, all the keels perfectly smooth. After the emission 
of the capsule, the perianth often becomes enlarged, subclavate, and, as 
it were, stipitate, by the lengthening of its base. Capsule ovato-globose, 
on a longish geniculato-articulate pedicel of 12 tiers of cells. 
Androcia are either a short ramulus, bearing only 3 or 4 pairs of bracts 
