2 
CRYPTQGAMIA. ALGiE. Lichen. 
white-washed. Dill. Crust thin, white, brittle, when on moss; thick, 
soft, mealy, when on bark. Under the microscope appears to consist of 
heaps of spherical globules sticking together, of a greyish colour, and 
dusted with a white powder. When wet, it is often greenish, and when 
rubbed between the fingers has an unpleasant smell. Hoffman. Enum. 7. 
(White Lichen. Lepraria alba. E. Bot. Lecidea alba. Achar. Hook. E.) 
Byssus lactea. With. Ed. 2. Lightf. On old decayed mosses and small 
branches of heath. Wales and North of England and Scotland. 
P. Jan.—Dec. 
L. inca'nus. Hoary, powdery ; like scattered meal. 
Dill. 1. 3.— Hoffman. Enum. 1. 6— (E. Bot. 1683. E.) 
It has the appearance of a very small crustaceous Lichen. Linn. Even 
through an eye-glass it appears only as a shapeless powder of a greyish 
white colour, sometimes intermixed with green and yellow. Dill. When 
magnified it appears to consist of particles of different figures, egg-shaped, 
oblong, compressed, open at the top, pouring out a reddish powder. 
From these arise other larger particles, folded at the margin, sending out 
numerous oblong corpuscles, rising up and spreading, turned back at the 
edge, and throwing out a yellow meal. Hoffm. Enum. 8. 
(Soft Mealy-crusted Lichen. Byssus incana. With. Ed. 2. Lecidea 
incana. Achar. Hook. E.) Gravelly soil on the sides of ditches, near 
high roads, on decayed moss and wet trunks of trees in very shady 
situations. A. Oct.—June. 
L. cine^reus. Ash-coloured, powdery ; covering the surface of rocks. 
It will grow upon the barest rocks and stones. Hoffman thinks this differs 
from the L. antiquitatis in age only. It is found on rocks and stones of 
every kind which have been long exposed to the air, giving them a 
greyish colour through the whole year, but is in itself so minute as to be 
hardly distinguishable. 
(Ash-coloured Rock Lichen. E.) Byssus saxatilis. With. Ed. 2. Lime¬ 
stone rocks and stones in Westmoreland, Cumberland, Yorkshire, and 
Derbyshire. P. Jan.—Dec. 
L. antiquita'tis. Black, powdery. 
Hoffm. Enum. 3. 5, right hand half—Dill. 1. 18. cited in Linn. Mant. 510, 
and Gmelin , is B. nigra , as is B. antiquitatis of Weis. 
Black, resembling irregular dots of ink made with a pen, solitary or con¬ 
fluent, very black when wet, greyish black when dry. When magnified 
they appear like ill-formed warts, crowded together. Hoffman. 
(Black-dotted Lichen. E.) Byssus antiquitatis. With. Ed. 2. Old 
walls, rocks, and large stones, common. P. Jan.—Dec. 
L. joi/ithus. Blood-coloured, powdery, growing on stones. 
{E. Bot. 2471. E .)—Mich. 89. 3— FI. Dan. 899. 1. 
It has a strong scent of violets, especially after rain. Linn. Very red 
when young; when old, yellowish green. 
(Violet-scented Li'chen. Lepraria Jolithus. E. Bot. Achar. Hook. 
Byssus Jolithus. With. Ed. 2. Rocks and stones of quartz, in moist 
shady places. The blood-coloured stains on the stones at the bottom of 
the Holy-well in Flintshire, superstitiously attributed to the martyrdom 
of St. Winifred, are occasioned by this vegetable. E.) P* Jan.—Dec. 
(Linnaeus in his Tour through Oeland and East Gothland observes, 
“ Every where near the roads I saw stones covered with a blood-red 
