DR. LINDSAY ON NEW-ZEALAND LICHENS. 529 
Generally ei 6 inches long; a somewhat entangled mass of straggling branchl 
podetia ; cues, on rocks, it is dwarfed, and only about 1 he: er " or 
p^ it from S. ramulosum; and I would scarce give it place as x f ER 1 kj i 
variety thereof. In specimens of what appears to be the same lichen dolest lé ihe 
Chatham Islands by Travers jun., and sent to me by Dr. Müller of Melbou " t} : 
EE ee hymenium generally are exactly as in $ pen 
empoides, and thus refer both species to S. ramulosum. y ri 
Sp. 3. S. CORTICATULUM, Nyl. 
On tertiary grits and conglomerates, base of Saddle-hill; on mica-slate, Taylor's Creek 
Baddle-hill, Otago : W. L. L.: in all cases sterile. The most common of the penu 
E with in the Greenisland distriet of Otago. The plant is dwarfish, about + to 
E. tall, generally subcoralloid, densely tufted, forming a rigid pile covering the 
i. ta slope it occurs ; comparatively little branched, subsimple and smoothish, or 
3 2 ed, en of an ashy or pale-greenish grey colour, resembling, as 
Ye o ar plant generally, an exaggerated condition of S. nanum, Ach. 
ES. nip the tips of the podetia are crowned with peculiar tufts, resembling the 
d ses orms of 8. nanum—vresulting, apparently, fr 
nching and subfarinosity of the terminal divisions of the podetia. 
om a condition of minute 
Sp. 4. S. wAcROCARPOIDES, Nyl. (Fig. 3.) 
“New Zealand,” Travers, sent me by Dr. Müller, 
m Spores (e, d) sublinear or narrowly fusiform, 
se 00010 to "00015" broad. Spermogones numerous and distinct, as wartlets seated 
B ur below the apothecia, each pierced by an irregular brown ostiole. Body 
rown, semitranslucent, immersed. Spermatia (b) iu myriads, linear, curved (crescent- 
shaped) ; straight while attached to the sterigmata, 0003” long, 00005” broad. Ste- 
rigmata short, simple, under :0003” long; basal cellular tissue greenish yellow (b). 
Auckland, Dr. Sinclair, in fruit. Spores (c, d) narrowly fusiform, colourless, 3- or poly- 
septate, straight, 0009” long, ‘00001” broad. Thecæ 8-spored, peautiful blue with 
iodine (as the whole hymenium is), 0024” long, 00045” broad. Paraphyses discrete 
and distinct, with large tuberculiform, brownish, loosely aggres® 
E terminal, large, and handsome, 
: Me or as if composed of two or more confluent 
*pithecium frequently eroded in patches, as in Sticta. 
Eur in tufts 9-3 inches high; but I cannot distinguish it by 
om S. ramulosum. Like Ramalina and Usnea, and not a few others, 
“aulon consists of plants so variable, that it is mos :mit or define its species 
Melbourne; in fruit, and spermo- 
polyseptate, 0015” to “0020” 
t difficult to 
and their varieties. It appears to me that all known species, British and foreign, 97^ 
vise with advantage, of reduction to à very few types whereof the ubiquitous 
Paschale, Ach., is the principal. 
