17. A. cornutum.
Gr. Fl. Eds. 447; Crypt, t. 180; Sowerby, t. 319; Persoon, Syn. 205; Berwick Flora, ii. 207.
On the leaves of the Mountain Ash, N. and D. In
Twizell Dene, N Mrs. Selby.
18. A. Tussilaginis.
Gr. Fl. Eds. 447; Persoon, Syn. 209; Sowerby, t. 397, f. 1; Berwick Flora, ii. 207.
On the leaves of Tussilago Farfara.
19. A. Allii.
Gr. Fl. Eds. 447; Persoon, Syn. 210; Berwick Flora, ii. 207.
On the leaves of Allium urcinum, near Berwick. — Dr. G. Johnston.
MUCEDINEAE.
166. ERINEUM.
1. E. aureum.
Gr. Crypt, t. 33; Persoon, Syn. 700; Berwick Flora, ii. 290.
On the leaves of the Populus nigra.
2. E. griseum.
Gr. Crypt, t. 141, f. 1.
On the leaves of the Oak, common.
3. E. clandestinum.
Gr. Crypt, t. 141, f. 2; E. Oxyacanthae, Persoon, Mycol. i. 145.
On the leaves of the White Thorn.
4. E. faginum.
Gr. Crypt, t. 250, f. 1; Persoon, Syn. 700; Berwick Flora, ii. 208.
On the leaves of the Beach, common, Near Berwick. — Dr. G. Johnston.
5. E. populinum.
Gr. Crypt, t. 250, f. 2; Persoon, Syn. 700; Berwick Flora, ii. 209.
On the leaves of Poplars and the Aspen.
6. E. Padi.
Gr. Crypt, t. 157, f. 1.
On the leaves of the Bird Cherry, N. and D. Near Twizell House, N — P. J. Selby, Esq. Near Beamish, D. — Greville.
7. E. roseum.
Gr. Fl. Eds. 451; Crypt, t. 21.
On Betula alba, in sub-alpine situations.
8. E. betulinum.
Gr. Fl. Eds. 451; Edin. Ph. Jour, vi. 79, t. 3; Berwick Flora, ii. 208.
On the leaves of Betula alba, frequent.
9. E. Alneum.
Gr. Crypt, t. 157, f. 2; Persoon, Syn. 701; Berwick Flora, ii. 209; Mucor ferrugincus, Bull. t. 504, f. 12.
On the leaves of the Alder.
10. E. roseum.
Gr. Fl. Eds. 451; E. Betulae;, Crypt, t. 21.
On the leaves of the Birch in Teesdale, and other sub-alpine situations.
11. E. pyrinum.
Gr. Crypt, t. 22; Persoon, Syn. 700; Berwick Flora, ii. 208.
On the leaves of the Crab and Pear, not rare.
12. E. tortuosum.
Gr. Crypt, t. 94.
On the leaves of the Birch.
13. E. Sorbi.
Gr. Crypt, t. 263, f. 1.
On the leaves of the Mountain Ash. Near Wellington, N.— W.C. Trevelyan, Esq.
14. E. Juglans.
Gr. Crypt. 263, f. 2.
On the leaves of the Walnut.
15. E. acerinum.
Gr. Fl. Eds. 449; Persoon, Syn. 700; Berwick Flora, ii. 208.
On the under surface of the leaves of the Sycamore, common.
167. MUCOR.
1. M. caninus.
Persoon, Syn. 201; Gr. Crypt, t. 305; Syn, 7; Berwick Flora, ii. 210.
In stercore canino.
168. MYRIOTHECIUM.
1. M. Carmichaelii.
Gr. Crypt, t. 140.
On decayed vegetables.
169. CHAETOMIUM.
1. C. datum.
Gr. Crypt, t. 230.
On dead Grasses and Reeds.
BYSSOIDEAE.
170. BYSSUS.
1. B. floccosa.
Bot. Gall. ii. 934; Berwick Flora, ii. 212; Byssus septica, With. iv. 192, var. 2; Dill. t. 1, f. 9.
In wine cellars. — Dr. G. Johnston.
2. B. olivacca.
Filaments, long, tubular, even, continuous, simple, pellucid, and of an olive green colour. Abundant in an oil cellar in Newcastle, where the plant formed a loosely matted covering to the walls
behind the casks.
Dr. G. Johnston, to whom I sent this plant, and to a more accurate observer specimens could not have been submitted, observes, "The tubes are empty, but in some of them I thought I perceived a granular matter. There are no sporules."
171. OZONIUM.
1. O. auricomum.
Gr. Crypt, t. 260; Dematium strigosum, Persoon, Syn. 695; Byssus barbata, Eng. Bot. 701; With, iv. 191.
On rotten wood in damp places, and in caverns.
172. DEMATIUM.
1. D. violaceum.
Persoon, Syn. 697; Auricularia phosphorea, Sowerby, t. 350; Byssus phosphorea, With. iv. 189; Conferva phosphorea, Dillwyn, t 88.
On rotten wood and bark, not rare.VOL. II. I i
