/ 1 *) [ 2012 ]
L I C H E N leptophyllus.
Small-leaved Dot Lichen.
CRYPT0GAM1A Alga.
G en. Ch a r . Male, scattered warts.
Female, smooth shields or tuhercles, in which the
seeds are imbedded.
Spec. Char. Frond leafy, small, somewhat cartilaginous,
peltate, blackish brown, smooth on both
sides, often black beneath; the circumference
rounded, lobed and wavy. Tubercles in minute
immersed dots.
Syn. Lichen leptophyllus. Ach. Prod. 141.
Endocarpon leptophyllum. Ach. Meth. 127.
G a t h e r e d by Mr. Hooker and Mr. Borrer on the hill of
Kinnoul near Perth, a famous spot for beautiful agate pebbles.
The smaller and blacker specimens, f. 2, grew on rocks by the
shore of Loch Lomond.
This little plant is much allied to L. minialus, t. 593, both
belonging to the very natural genus Endocarpon, which will
be adopted when we undertake the arrangement of the whole
tribe. It grows in patches, each plant is peltated or umbili-
cated, fixed by a strong central root, and from a quarter to
half an inch broad, leathery or somewhat cartilaginous,
smooth on both sides, rounded and bluntly lobed, when
young and healthy of a blackish or greenish brown all over, the
under side being, as Mr. Borrer remarks, black only when
exposed to light. By great exposure the whole turns black.
The tubercles are minute, concave, scattered about the centre
of the upper side, in which they are so completely immersed
as to have scarcely any projecting border round the orifices of
each.