522 DR. LINDSAY ON NEW-ZEALAND LICHENS. 
are abundant as minute peripheral or subperipheral tubercles, having essentially the 
characters of those of other Collemata (Linds. Spermog. p. 270, plate xv.). 
On the damp faces of cliffs and rocks, in gorges or ravines, in the Greenisland and Chain 
hills, and in similar localities, I met with other Collemata apparently identical with 
common home forms, which, however, have not been preserved in my herbarium, and 
have therefore probably been lost during, or destroyed by, transport. The genus appears 
to be fairly represented in New Zealand, though not to the same extent as in Britain. 
When, however, we are thoroughly acquainted with the lichen-flora of the extremely 
moist west coast of Otago, the number of the Collemata may prove to be much greater 
than that at present known. | 
Genus VIT. Leprogium. (Plate LXI.) 
Sp. 1. L. BULLATUM, Ach., (Fig. 39,) which occurs in New Zealand, according to Nylander 
(Syn. 129), is essentially a plant of tropical countries. In herbarium Kew there is 
a good suite of specimens, including forms from :— 
a. Jamaica (Purdie, sub nom. Collema aphthosum, Hook. fil. & Berk.), on twigs 
of bushes and on trees. | 
6. Hot country at western base of the Andes (Jameson). 
c. Himalayas (Strachey and Winterbottom). 
In Jamaica specimens the spores (a,b) are broadly ellipsoid or oval, 1-6-septate, the 
loculi submuriform; :001^ long, *0005" broad. Thalline laciniæ bullose, bearing on ther 
apices the apothecia, which generally appear subsaccate. Only in the bullose laciniæ 
does the plant seem to me to differ from the cosmopolite L. tremelloides, Fr., which 
appears to be abundant throughout New Zealand, occurring variously on mosses, earth, 
stones, or trees. 
In a specimen from Rio Janeiro (Paul. 1846) in my herbarium, the thecæ are deep blue 
with iodine—and the spores (c) muriform, resembling those of Urceolaria scruposa 0 
Lecidea petrea. 
Genus VIII. LICHINA, Ag. 
Sp. 1. L. pyemma, Ag. [Linds. Spermog. 268; sub nom. var. intermedia, Bab. L. N.Z. 
47, plate 128 c.] 
On rocks, Otago, 1850 ; probably collected by Dr. Lyall: in herbarium Kew. - 
not differ from the common British plant. 
Spores oblong-oval, simple, -001” long, *00033" broad. 
Genus IX. RAMALINA. (Plate LXI.) 
Sp. 1. R. cALICARIS, Ach. (Fig.16.) [Linds. Spermog. 127.] P 
On trunks and branches of trees, Saddle-hill and Stoney-hill Bush; on dead trunks 
“ Goai,” Greenisland Bush, Otago: W. L. L.: all in more or less abundant fruit. 
| E A À less, 
Spores (4,2) oblong-ellipsoid, straight or more generally slightly curved, oz i 
l-septate, 00045" long, 00015” broad. Apothecia terminal or subterminal, frequ 
