. Pi in 1857 (Mem. Spermog. 218). Lecanora esculenta, 
3 
DR. LINDSAY ON NEW-ZEALAND LICHENS. 533 
mischievous to separately name such mere conditions as sylvatica, 
Scheer. 
Sp. 3. C. PYCNOCLADA, Pers. [Nyl. L. N. Z, 244. | 
On ground in the bush, Manuka Gully, Saddle-hill, Otago: W, L. L. Associated with 
C. aggregata ; abundantly spermogoniferous, the spermogones being identical with those 
of C. rangiferina. | 
I cannot distinguish it by any sufficient characters from the condition of C. rangi- 
ferina called alpestris; it possesses the same beautiful pure lemon-yellow colour, passing 
into an ash-grey. It is probably, in whole or in part, the alpestris of Bab. L. N. Z, 
Auckland specimens in herbarium of Dr. Sinclair quite agree with the Otago plant, 
except that the former are generally slightly taller, straighter, more rigid, and hand- 
somer. In his Syn. 212, Nylander considers C. pyenoclada a mere var. of C. rangi- 
ferina; but in L. N. Z. 244*, he dissociates it as a separate species. I still refer it to 
C. rangiferina, but hesitate as to its deserving separate place and name as a variety. 
large patches of forms of C. rangiferina from Tasmania and Jamaica are exhibited in the 
Museum of Economie Botany, Kew. 
Hffm., and alpestris, 
Sp. 4. C. DEGENERANS, Flk. (Fig. 10.) [ Linds. Spermog. 157.] 
Type: on ground, base of Saddle-hill. In fruit and spermogoniferous. 
Form euphorea, Ach. On rotten trunks of trees, East Taeri bush. Apothecia abun- 
dant. Associated with C. aggregata, also in plentiful fruit: varies in height from } to 3 
inches; larger forms very handsome. 
Form aplotea, Ach. On trunks of dead trees, East Taeri bush. Fruit abundant. 
Form lepidota, Ach. On ground, base of Saddle-hill, in fruit; on trunks of dead 
trees, East Taeri bush, in fruit and spermogoniferous. 
The spores, and in general the constituents of the hymenium, are the same in the type 
and all its forms above mentioned. Spores (fig. 10) narrowly ellipsoid, A some- 
times slightly curved or plano-convex, simple, colourless, 90045 Jong, 00020 pipi 
Hymenium deep blue with iodine; its constituents as indistinct as in the majority o 
the Cladonie. | 
Form erratica. On limestone, Woodburn, Saddle-hill: W. L. L: spermogoniferous, 
but without apothecia. The horizontal thallus becomes curled up into ball-like vc 
Which are detached in course of time from the ground, and which then roll freely vo 
the wind on the downs about the seaward base of Saddle-hill. The plant has consider- 
j is. The curl- 
abl ; Jaciniate forms of Physcia stellaris. 
. ° Tesemblance to saxicolous congesto-laciniate un ee eibi 
7$ up of the thallus, its gradual tion of a ball nall i 
i ‚its gradual assumpti : et with 
fim its basis of support (which is generally the ground) 1 seat Walter Trevel- 
| Z . . j j m 
1 other lichens, especially in a form of Parmelia mag 5 seems to be an erratic 
i | rtions of the 
chen of the same character; and I have found ball-shaped vim " E iia N 
thallus, though not detached, frequently in 2. tartarea, Ach., 
; da me parut alors presque 
he letter, January 26, 1866, he writes :—“ La forme de Cladonia appelée EHE zs C qm ferina." 
We espèce distincte, Depuis j'en ai vu, même de la Nile Calédonie, qui DONE 4D 
VOL, XXV. 
