270 DUBLIN UNIVERSITY 



10. Z. lucida (Ach.). The barren thallus of this lichen is not rare 

 on shaded slaty rocks, bnt I have not yet found the apothecia. 



11. Z. vernalis (Ach., Nyl.). Var. (1). Muscorum (Schoer.). Biatora 

 tnu8corum (Leight., L. B. Exs. 91 !). Lecidea sphceroides, v. dolosa (Schcer. 

 L. H. Exs. 4741). Z. milliaria, v. saxicola (Leight., L. B. Exs. 210 !), 

 Z. sphceroides, v. muscorum (Schoer. L. H. Exs. 209!), and Z. Templetoni 

 (Tayl.?), from Co. Antrim, in Herb. Moore, seem also to belong to this 

 form, which is not rare on the ground, sometimes occurring on trunks 

 of trees. 



Var. (2) Milliaria (Fr.) Lecidea milliaria, v. terrestris (Leight., L. 

 B. Exs. 238 !). Z. geomcea (Tayl.) in Herb. Borr. ! On the ground, not 

 rare. In Herb., Cork Institution. Miss Hutchins. Several localities 

 in Co. Antrim ; D. Moore, who sends it as L. geomcea (Tayl.). 



Var. (3). Montana {Nyl.). On wet earth, Co. Wicklow ; D. Moore. 



12. Z. cyrtella (Ach.). Z. vernalis (Ach.), var. anomala (Nyl.) On 

 trees, and occasionally on rocks, frequent. Nylander thinks this plant 

 a form of the preceding; but I do not feel satisfied that such is the case. 



12*. Z. sphceroides (Dicks.). On trees, Florence Court, Admiral Jones. 

 This, as well as the preceding species, are considered by Nylander forms 

 of L. vernalis (Ach.) ; but I am not satisfied that such is the case. 



13. L. gelatinosa (Flk.). L. viridescens (Ach.), v. gelatinosa (Flk., 

 Nyl.), L. gelatinosa (Schosr. L. H. Exs. 205 !). Specimens in Herb., 

 Cork Inst., collected by Miss Hutchins, certainly belong to this spe- 

 cies, which has been also found " on turf, Slemish Mountain,' ' and " on 

 the ground, Kelly's Glen," by Mr. D. Moore. I have not had an oppor- 

 tunity of examining good examples of Z. viridescens (Ach.), to which the 

 present species has been referred as a var. by Nylander. 



14. Z. decolor ans (Flk.). L.quadricolor (Borr.). L. granulosa (B.) 

 (Schosr., L. H. Exs. 214!). In Herb., Cork Institution; Miss Hut- 

 chins. Boggy ground, Co. "Wicklow ; D. Moore. On the mountains 

 near Doneraile, Co. Cork. 



15. Z. uliginosa (Ach.). -Biatora uliginosa (Leight., L. B. Exs. 120 !). 

 Lecidea microphylla, b. uliginosa (Schoer., L. H. Exs. 162 ! 163 !). In 

 Herb., Cork Institution; Miss Hutchins. On turf, Co. Deny, and 

 on decayed grass, Ballymoney, Co. Antrim ; D. Moore. Near Cork and 

 Doneraile. 



16. Z. quernea (Ach.), (Schoer., L. H. Exs. 582!). Biatora quernea 

 (Leight., L. B. Exs. 61 !). On trees, especially aged oaks and beech 

 common. Apothecia on oak at Castlebernard Park, near Bandon. 



