50 
CRYPTOGAMIA. ALG M. Lichen. 
straw-colour, but sometimes of the same colour with the leaf. Leaf 
greenish ash-colour, stiff. 
(Leafy Ash Lichen. Ramalina fraxinea. Achar. Hook. E.) Trunks of 
trees, on poplar, apple, &c. but chiefly on oak and ash. P. Jan.—Dec. 
L. scoruLo r itUM. Tubercles pale brown: glossy, on short pedicles: 
foliage pale green, straight, flat, glossy, strap-shaped, a little 
jagged- 
(E. Bot. 688. E.)— FI. Ban. 969. 2. 
Not L. scopulorum , of Gmel. Syst, Veg. and Dill. 22. 60; for that is L. 
facoides , not above an inch long, and has a velvety surface; this is 6 or 
8 inches long, its surface quite smooth. 
(Shining Green Rock Lichen. Ramalina scopulorum. Achar. Hook. E.) 
On rocks both in England and Scotland. Dicks, iii. 18. 
L. burges'sii. Saucers brown, elevated; border green, leafy, curled : 
leaves somewhat tiled, curled, green. 
. E.Bot. 300— Lightf.26. l.at p. 826— Hoffm. Enum. 21. 1. 
Leaves thin, pellucid, dull green, clustered together so as to form a thick 
cushion about as broad as the hand; smooth above, finely downy be¬ 
neath, purplish brown when dry and the underside hoary. Dr. Smith ; 
who observed this rare species about the Devil’s Bridge, at Hafod in 
Cardiganshire, on trunks of trees. 
(Green-cushion Tree Lichen. Collema Burgessii. Achar. Hook. E.) 
It was first discovered on trunks of hazel and birch in Dumfries-shire, by 
the Rev. Dr. Burgess of Kirkmichael. (Abundant and in full fructifica¬ 
tion on birch trees below the waterfall of Rhyadr y Wenol, near Capel 
Cerrig. J. W. Griffith, Esq. On trees at Lowdore. Mr. Winch. E.) 
P. Jan.—Dec. 
L. glomulif'erus. Saucers tawny: leaves glaucous, even, creeping, 
bearing dark green branched, tuffed excrescences. 
E. Bot. 293 —Mich. 46— Bill. 26. 99—Jacq. Coll. iii. 9. 2. 
Lightfoot’s description very good, but the young saucers have more the 
appearance at first of warts than tubercles, being merely risings in the 
substance of the leaves, with a small perforated point in the centre. As 
these swell, the edges recede and the disk is discovered. I have always 
seen the shields and halls , on the same plant, and if it be true that these 
and the shields are distinct parts of fructification, the glomerula must be 
male and not female, as Micheli, and after him Scopoli have supposed: 
, Hedwig having clearly proved the seed-vessels and seeds to be situate 
in the shield of such species as he has examined, from whence analogy 
will certainly point them out to be so in all. Mr. Woodward. Spreading 
in a circular form to a large size, greyish blue, smooth and even, rough 
underneath, and dirty white or brown, with numerous fibres. Leaves 
solid, tough, rather leathery, variously and elegantly cut. Saucers the 
size of a lentil, reddish, surrounded with a blue giey granulated border. 
Dill. 
(Circular Glaucous Tree Lichen. E.) L. laciniatus. Huds. and With. Ed. 
2. L. quercifalius. Jacq. Coll. L. laciniosus. Gmel. Syst. Veg. ( Parmelia 
glomulfera. Achar. Hook. E.) On the road between Carno and Mayne 
Lloin. Dill. On trees on the great Island in Winandermere, and in the 
woods at Corby Castle, Cumberland. Dr. J. E. Smith. On ash, sycamore, 
and oak, in the North. West of Devonshire. Mr. Newberry. About 
