136 
(Nyl., Prod., 140) ; on sterile thallus of Pertusaria ocellata, 
Wallr., var. corallina, Ach. (Rabenhorst, Lich. Europ. Exs., 
Fasc. xxviii). 
Spores 8, minute, 2-locular, brown. Korber (Syst., 
228) describes a proper thallus, with spermogonia. Ny lan- 
der suggests that it may be considered a form of L. disci- 
formis. 
11. L. Egedeana, Linds. (Observ. on Greenland Lichens). 
On sterile thallus of Parmelia saxatilis. 
Spores 8, broadly ellipsoid, 2-locular, brown. 
12. L. glaucomaria, Nyl., Prod., 144. 
On thallus of Lecanora glaucoma and Physcia parietina, 
(Nyl.). 
Spores oblong, 2 — 4-locular, colourless, sometimes becom- 
ing brown. 
13. L. sagedioides, Nyl., Prod., 140. 
Syn. Homalea, Nyl. 
Miscboblastia lecanorina, Mass., Rich., 41. 
Berengeria, Trevis. 
Urceolaria cinerea, v. vulgaris, subv. polygonia 
f., Carov. 
U. cinerea, v. alba, subv. deedalea, Scliaer. 
On thallus of certain terricolous and saxicolous Verrucarice 
(Nyl.). 
Spores 8, ovoid, 2-locular, colourless, becoming brown. 
Massalongo describes it as having a proper thallus. 
14. L. Endocarpicola, Linds., Observations on New 
Licheicolous Micro-Fungi. 
On Endocarpon hepaticum, Ach. 
Spores 8, ellipsoid, colourless, simple or 3-septate. 
15. L. uniseptata, Nyl. (Enum., 127) ; Switzerland. 
I have not met with a description of the characters of 
this or the following, which, however, belong to that section 
of Lecidea having compound sjmres. 
16. L. aliena, Nyl. (Enum., 127); California. 
c. Spores linear or acicular, and multilocular. 
17. L. arenicola, Nyl. (Mudd, 186). 
Syn. L. citrinella, var., Nyl. (f. Mudd). 
Raphiospora, Mudd. 
On thallus of Bceomyces rufus . 
Spores acicular, frequently flexuosc, 8 — 12-locular, colour- 
less. There seems no good ground for regarding it otherwise 
than as an athalline form of L. citrinella, Ach. 
d. Character of Spores not known to me. 
18. L. cristata, Leight. (in letter, 1858). 
