378 : Transactions.— Botany. 
47. Megalospora dispora, Kn 
Thallus cinereus granulatus continuus. Apothecia atro-fusea super- 
ficialia convexa (diam. 0:6 mm.) immarginata; excipulum proprium dilute 
ochraceum ; hymenium grumosum fuscidulum paraphysibus væris destitutum 
hypothecio crasso dilute luteo enatum. Spore in ascis pyriformibus bine 
ellipsoides simplices ineolores, longit. ‘042, crassit. 02 mm.; episporium et 
endosporium corio crasso disjuncta. 
Ad cortices. 
48. Lecanora homologa, Nyl. 
Thallus sordide albo-cinereus sublævis indeterminatus. PERES (made- 
facta diam. *1 mm.) disco rufo plano, margine tumido subgranuloso albo, 
paraphysibus non bene discretis apice granosis fuscescentibus, excipulo thal- 
lode pallido gonimico calluloso, gonimia magna. Spore ovoideæ 8-loculares, 
loculis tubulo tenui junctis, incolores, longit. ‘024, crassit. 012 mm. 
Ad cortices. 
DESCRIPTION OF PLATES XII. ano XIII. 
Fig. Fig. 
1. Sticta amphisticta, Kn. 12. Bacidia subseripta, Kn. 
a, spores. a, two spores 
b, ascus with spore 13. Bacidia glomerulosa, Kn. 
2. Sticta quce, um; a, three spores 
a, ascus with spores. b, granule gonime in nodule. 
3. Pannaria atro-fumosa, Kn. c, granule gonime. 
a, ascus with spores. 14. Bacidia eucoccodes, Kn. 
b, granule gonime. a, à separate spore. 
4. Pannaria apiculata, Kn. 
a, ascus with spores. 
b, granule gonime. 1 
5. Pannaria triptophylla, Ach 
b, granule gonime in nodule. 
c, ascus with spores. 
. Bacidia spirospora, Kn. 
a, ascus with spores. 
et 
a, ascus with spores. b, spore separate. 
6. Pannaria subsimilis, Kn. 16. Bacidia melastegia, Kn. 
a, ascus with spores. a, ascus with spores. 
8. Pannaria biatorina, Kn. 17. Bacidia anceps, Kn. 
a, ascus with spores. a, two spores. 
b, two spores. 18. Bacidia cerasentera, Kn. 
c, granule gonime, a, spore. 
9. Pannaria eg Kn. 19. Bacidia melasema, Kn. 
a, spores in 8. a, two spores. 
b, two ee a granule gonims. | 20. Bacidia mesospora, Kn 
10. Physcia plinthiza, Nyl. a, ascus with spores. 
a, three spores. b, spore. 
11. Lecanora babingtonii, Mass. 21. Bacidia stenospora, Kn. 
d, ascus with spores and three sepa- a, ascus with spores. 
rate spores. b, Spore. 
b, Lecanora punicea, pas iwospores.| 22. Bacidia pedicellata, Kn, 
€, n ” two spores. a, spore. 
