DR. LINDSAY ON NEW-ZEALAND LICHENS. 545 
Genus XXVIII. Lecea. (Plate LXIII.) 
Sp. 1. L. PINETT, Ach. (Fig. 6.) 
On trunks of trees, living and dead, Saddle-hill bush, Otago: W. L. L. : associated 
with sterile forms of Cœnogoniwm implezum. There is no visible thallus, the apothecia 
(which are mostly young) being seated directly on the bark. There is a general resem- 
blance to the apothecia of the Cenogonium ; so that they might be regarded as referable 
to an athalline condition of the latter. But there are certain differences in the spores 
and paraphyses, which, along with the absence of a thallus, and the correspondence in 
essential characters with the British Z. pineti, lead me to refer the apothecia in question 
thereto. Under moisture they lose their beautiful pale peach-colour, and become cor- 
neous or semitranslucent. The hymenium sometimes exhibits a very faint shade of blue 
or violet under iodine; more generally it is unaffected. Paraphyses discrete, filiform, 
distinct, with tuberculated heads, full of granular very pale greenish-yellow colouring- 
matter. Spores variable as to size and form, broadly or narrowly ellipsoid, oval, or 
fusiform, normally 1-septate (septum not always median), sometimes simple or ob- 
securely septate, colourless, “00045” long, *0008" broad. Here the spores are longer 
generally, more slender, and more variable than in O@nogonium implexum. 
Sp. 2. L. orxNABARINA, Fr. (Fig. 31.) [Biatora, Bab. L. N. Z. plate cxxix. c. | 
In herbarium Kew: North Island, New Zealand, associated with forms of Usnea 
barbata (Colenso, No. 5291); Tasmania, on twigs of bushes. One of the most beautiful 
corticolous Lecideæ of any country. Apothecia of a bright vermilion-red ; they resemble 
those of some forms of Lecanora ferruginea. The latter, however, has polari-bilocular 
spores; while in Z. cinnabarina they are fusiform or ellipsoid, simple, colourless, 
00033" long, 00012” broad. 
Sp. 3. L. PYROPHTHALMA, Mont. (Fig. 32.) 
Another beau- 
In herbarium Kew : North Island, New Zealand (Colenso, rat deep saffron- 
tiful corticolous species, with very handsome, large, convex, nen eg fs 
Yellow apothecia. The plant has considerable resemblance to Z. lutea, Sch., as rs 7 K 
for instance, in Ireland (Carroll): the apothecia are similar; gas ns, 0006” ss 
Ophthalma are somewhat larger, they are fusiform, 1-septate, colourless, Are 
00011” broad, The plant has been variously referred to forms of rug au áp 
(var. letissima, Bab.), and Z. calva, Dicks. but the spores > er i eh or 
those of either, those of Z. aurantiaca being, as in L. ferrugineo» ias 
phy scioid, those of Z. calva simple. 
Sp. 4. L. ARCEUTINA, Ach. (Fig. 7.) [Nyl. L. N. Z. 20.) ‘WLL: 
On trees, Stoney-hill bush; East Taeri bush ; Greenisland bush, ide nitidella, 
associated with Thelotrema lepadinum, Verrucaria nitida, Schrad., mie die at To 
Fik., and with other corticolous species. Apothecia re sembling r 
