26 
OBSERVATIONS ON PARHELIA OLIVACEA. 
var. laetevirens, Flot . 
This is distinguished by the thallus being greenish — olive or 
greenish-brown. To it is referable Parmelia fuliginosa, f. olivacea , 
Leight. Lich. FI. Ed. III., p. 123, which in Ed. I. Suppl., p. 479, 
was strangely regarded as a variety of P. Borreri. It has been 
seen only from a few localities in England and the Scottish High- 
lands. 
In addition to these, further search will most likely detect in our 
islands P. glabra Schan* (erroneously recorded by me as British in 
Journ. Bot.,” 1876); and also P. exasperatula Nvl., which I 
believe I have seen on the smaller branches of larch trees in 
Braemar. Both of these belong to this subsection, the former 
having its nearest ally in P. olivacea and the latter in P. aspidota. 
NOTE ON PARMELIA REDDENDA STRN. 
By the Rev. J. M. Crombie, F.L.S. 
Some two years ago I was favoured by Mr. Leighton with the 
sight of an authentic specimen of Parmelia reddenda Strn., so 
labelled by the author himself. Both in the character of the thallus 
and in the absence of any chemical reaction of the medulla, it en- 
tirely agreed with specimens in my own herbarium and in that of 
Mr. Bloxam, which I regarded as being merely “ young states ” 
of P. Borreri , not sufficiently evolute for the reactions to become 
manifest. It so happened that in the beginning of the present 
year Dr. Nylander in writing upon other matters incidentally men- 
tioned that, running out one wet day in the neighbourhood of Paris 
he gathered some small juvenile specimens of P. Borreri , with the 
view of demonstrating the reaction to his pupils. In these, how- 
ever, he next day found no reaction at all. They were therefore 
P. reddenda Strn., and consequently this is nothing autonomous, 
but merely an accidental state of P. Borreri , growing probably like 
my own specimens in damp shady habitats. 
NATAL FUNGI. 
Collected by J M. Wood, Inanda; determined by M. C. Cooke ; 
and Hymenomycetes by Rev. C. Kalchbrenner. 
Hemileia Woodii, K. 8f C. (No. 28.) 
Hexagona polygramma, Mont. (No. 169, 201.) 
Xerotus nigxita, Lev. (No. 189.) 
Bovista lilacxna, B. <Ss M. (No. 408.) 
Agaricus (Psalliota) arvensis, Schff. (No. 409.) 
Agaricus (Stropharia) olivaceo-flavus, K. $ M.O. (No. 415, 502.) 
Coprinus ephemerus, Fr. (No. 423.) 
Agaricus (Tricholoma) ustalis, Fr. (No. 428.) 
