Stirton.—Lichens of Province of Wellington. 237 
convex when matured, with a proper margin of same colour, and an elevated 
crenated thallodal margin, which is often separated from the former by a 
chink, pale within; hypothecium pale brown; epithecium brownish ; 
paraphyses matted together at apices ; spores eight, simple, ellipsoid, or more 
frequently one or other, or both apices acute ; margins distinctly crenulate, 
moderate (‘014 х 008mm). 
On stones, Wellington. 
Squamaria thawmasta, Stirton. 
Thallus greyish white, tesselato-areolate, consisting of roundish umbonate 
particles closely set together, and yet quite distinct ; cephalodia large, reddish 
brown, cracked in a radiating manner, and roundly lobed at the circumference ; 
apothecia small, elevato-sessile, concave, reddish brown, rugose, with an 
elevated, smooth, inflexed border ; spores eight, colourless, broadly elliptical, 
uniserial, one-septate. A beautiful lichen, and one that might constitute the 
type of a new genus, 
On rocks and stones, Tinakori Hills and Kaiwarra Creek, Wellington. 
Squamaria gelida, Linn. 
The apothecium of this lichen is differently constituted from that in 
Britain, inasmuch as the thalline exciple resembles the cup of the acorn, while 
there is a proper border, smooth and prominent, surrounding the epithecium, 
which is itself white, pruinose, and rugose. I can see, however, little 
difference otherwise to warrant a separation. 
On rocks and stones, Kaiwarra Creek and Hutt Road, Wellington. 
Thelotrema obovatum, Stirton. 
The spores of this lichen differ in shape from those of Th. lepadinum, and 
have altogether an appearance so peculiar that I have been tempted to elevate 
it into the rank of a species under the name given above. Thallus yellow, 
rimulose, uneven, slightly nodulated ; apothecia hemispherical, crowded in 
some parts; ostiolum rounded, open, margin even ; disk urceolate, scutilli- 
form, dark brown, proper margin inflexed ; spores eight, colourless, obovate, 
sharp pointed at one end, rounded at the other, divided internally by 
numerous crossbars, which do not reach the margin; epispore beautifully 
crenulated. 
These characteristics are constant, at least in every specimen examined. I 
have not seen 7. subtile, but, judging from the description of it by Leighton in 
his Lichen Flora, I cannot reconcile myself to identifying the present plant 
with it. 
On bark of trees, Tinakori Hills, Wellington. 
Lecidea kelica, Stirton. 
Thallus greyish white, thin, minutely rimuloso-areolate; areole smooth, 
