LICHEN trabinellus.
Brown Bin-lieaded Lichen.
CR YPTOGAMIA Algce.
G en. Char. Male, scattered warts.
Female, smooth shields or tuberdtes, in which the
seeds are imbedded.
Spec. Char. Crust rugged, cracked, brownish-white.
Tubercles on shortish brown foot-stalks, sphseri-
cal, flattish, greenish-yellow; disk powdery, dark
■ brown.
Syn. Calicium trabinellum. Ach. Meth. Suppl. 14.
C o m m u n ic a t e d with the above synonym by Mr.
W. Borrer from Hurst-pierrepoint, Sussex, where it grows on
several boarded buildings. It was however first observed by
Mr. D. Turner on a barn belonging to'Mr. Crowe at Laken-
ham near Norwich,'where it is to be found in abundance at
all seasons. Our specimens agree exactly with those sent by
the acute Mr. Wahlenberg, its original discoverer, from
Tornoa in Lapland.
The crust is of the nature of L. clavellus, t. 1465, but rather
more scattered and of a pale brownish hue. The stalks
are short, cylindrical, polished, of a dark brown almost black.
Heads globular but flattened, externally of a vivid greenish-
yellow, especially their border, which forms a striking and
beautiful contrast with the dark brown powdery disk.