312 
DR. LINDSAY ON THE 
Fig. 46. Verrucaria biformis, Borr., Cork : nes 
mata and spermatia. 
Fig. 47. Ditto, Leighton's Exs. No. 100: sterig- 
Fig. 1. 
. V. gemmata, 
. Ditto, Glen Nevis: 
. Ditto, Caerlaverock road : 
mata and spermatia. 
SPERMOGONES AND 
Figs. 48, 49. V. biformis, Waltham: sterigmata 
Fig. 50. 
PLATE XV. 
Illustrative of the genera Verrucaria, Pers., and Calicium, Pers., and of the pseudo- 
genus Pyrenothea, Fr. 
Verrucaria nitida, and var. nitidella, Flk., 
Cork: a, thallus, showing apothecia 
and spermogones ; 5, one of the sper- 
mogones isolated and magnified ; c, 
section of the thallus and spermogones; 
d, sterigmata and spermatia. 
Ach., Cork: 2, thallus, 
showing apothecia and spermogones; 
5, sections of thallus, showing ditto ; 
c, sterigmata and spermatia. 
&, thallus, showing 
apothecia and spermogones ; 5, section 
of thallus, showing ditto; c. sterig- 
mata and spermatia. 
a, basidia and 
sterile, elongated filaments; 5, stylo- 
spores. 
. Ditto, Leighton’s Exs. No. 136: a, ste- 
rigmata and spermatia; 5, sterile sper- 
mogonal filaments. 
. Ditto, Castlemartyr: sterigmata and sper- 
matia. 
. Ditto, Dunscombes wood : ditto. 
. Ditto, in herb. Don: basidia and stylo- 
spores. 
. V. glabrata, Ach., Martin's Bush, Otago, 
N. Z.: a, thallus, showing apothecia 
and spermogones ; 4, one of the apo- 
thecia isolated and magnified, sur- 
rounded by its spermogones; c, sec- 
tion of thallus, an apothecium, and a 
spermogone. (Vide also authors 
paper on * New Zealand Lichens," 
p. 553, plate lxiii. f. 30.) 
Fig. 10. Ditto, minor form, Stoneyhill Bush, 
; N.Z.: a, thallus, showing 
apothecia and spermogones; 5, section 
of thallus, an apothecium, and two 
Fig. 11. 
Fig. 12. 
Fig. 13. 
Fig. 14. 
Fig. 15. 
Fig. 16. 
Fig. 24. 
Fig. 25. 
. V. migrescens, Pers., Cork: 
. V. Garovaglii, 
and spermatia. 
V. pyrenophora, Ach., Leighton's Exs. 
No. 139: spermatia. 
(Vide also “N. Z. Lichens,” p. 553, 
pl. lxii. f. 30.) 
V. glabrata, Derrycunihy : a, thallus, 
showing apothecia and pycnides; 5, 
section of thallus, showing ditto; c, 
basidia and stylospores. 
Ditto, Hepp's Exs. No. 227: a, section 
of a spermogone ; 
spermatia. 
Ditto, Scherer’s Exs. No. 110 :.sterig- 
mata and spermatia. 
V. hymenogonia, Nyl., Glanmire road: 
a, thallus, showing apothecia and 
spermogones; 5, one of the spermo- 
gones isolated and magnified ; c, sec- 
tion of thallus and spermogones; d, 
spermatia. 
Ditto, Leighton's Exs. No. 242: sterig- 
mata and spermatia. 
V. rupestris, Schrad., Cork: a, thallus, 
showing apothecia and spermogones; 
6, section of thallus, showing ditto; 
c, sterigmata and spermatia. 
b, sterigmata and 
sterigmata 
and spermatia. 
Mont., Germany, Kew 
herb.: ditto. 
. Ditto, Hepp's Exs. No. 100: ditto. 
V. lectissima, Fr., Scherer’s Exs. No. 
285: ditto. 
. Ditto, Kerry: spermatia. 
. Calicium  hyperellum, Ach., Blaeberry 
Hill: a, thallus, showing apothecia and 
spermogones ; 4, sections of thallus, 
showing ditto: c, spermatia. 
. Ditto, Kew herb.: spermatia. 
C. roscidum, Flk., Kew herb.: ditto. 
Ditto, var. roscidulum, Nyl., Scherer’s 
