351 
4. V. endococcoidea, Nyl. (Flora, 1865). 
Syn. V. advincula, Nyl. 
On thallus of L. excentrica, near top of Ben Lawers 
(Jones); of Lecidea concentrica, Dav., near Cork, in my 
herbarium from Carroll ; on L. petrosa and L. contigua, Ben 
Lawers (Jones, in letter). Frequent in Ireland, always on 
L. petrosa or some of its forms (Jones). 
5. V. tartaricola, Linds. (‘ Observations on Greenland 
Lichens’). 
On thallus of Lecanora tartarea, Greenland. 
Spores fusiform or oval, 3 — 5-locular, olive or brown. 
6. V. capnodes, Nyl. Carroll, “ Contributions to British 
Lichenology,” Seeman’s Journal of Botany, vol. v, 
p. 259. 
Syn. V. rliyponta, Borr. and Leight. (non Ach.). 
On thallus of Graphis sophistica, Nyl. 
Spores 1 -septate. 
7. V. advenula, Nyl. Carroll, “ Contrib. Brit. Lich.,” 
Journ. Bot., vol. v, p. 260. 
Syn. V. rimosicola, Leight. 1 
On thallus of Lecidea excentrica. 
Genus XXXVI. — Endocarpon, Hedw . (pr. p.). 
Species 1. E. microsticticum, Leight., Exs., 317. 
Parasitic on thallus of Lecanora cervina, v. smaragdula 
(Leight., in letter to me, 1858). Mudd (159) refers it to the 
Lecanora as a var. microsticta, and describes a proper thallus 
with endocarpoid apotliecia, containing spores that are very 
numerous and minute, ellipsoid, and colourless. 
2. E. Crombii, Mudd (Brit. Cladoniae, p. 36). 
Parasitic on Thamnolia vermicularis. 
Sporidia 2 “extremely minute, elliptical, 1-locular, or at 
times faintly 2-locular, hyaline” (Mudd). 
Genus XXXVII. — Pseudographis, Nyl. 
Syn. Hysterium, Pers. 
Scleromium Suecicnm, Nyl. 
i Vide Microthelia rimosicola. 
s The terms “ spores ” and “ sporidia ” are in this paper used synonym- 
ously. Some lichenologists use exclusively the one term, some the other ; 
while uniformity of practice is most desirable. If the nomenclature of the 
Fungi is to be adopted for parallel organs among Lichens — as Berkeley de- 
sires should be the case — the term “ sporidia ” is the more correct, and the 
least likely to lead to confusion or error. 
