CATALOGUE OF CRYPTOGAMIC PLANTS. 49 
Has. On rotten trunks of trees. Darjeeling, 7,500 feet. Septem- 
ber. Rare. 
Pileus 2-3 inches or more across, convex, of a sooty purple-black, 
dry, closely tomentose; margin at first involute. Stem 3 inches high, 
l inch or more thick, nearly equal, very coarsely reticulated, darker 
than the pileus; substance white, but dark at the base and towards the 
margin, as also at its junction with the pileus. Pores ochraceous within 
and without, adnato-decurrent. Spores fusiform. 
À highly curious species, remarkable for its habit, dingy colour, and 
coarsely reticulate stem. Its affinities are very obscure. 
Catalogne of OCnRPTOGAMIC Prants collected by PROFESSOR W. 
JAMESON ix the vicinity of Quito; by WILLIAM MITTEN. 
In preparing for distribution the very valuable collections of Dr. 
Jameson considerable delay has unavoidably occurred, for I have been 
anxious to obtain as correct an idea as possible of all the species de- 
scribed by the late Dr. Taylor; and the great facilities I have had of 
examining both the specimens in his herbarium before it left England, 
and afterwards the Hepatice in Sir W. J. Hooker’s herbarium, most 
of which had been through the hands of Dr. Taylor, made me reluctant 
to close my labours before I had gone over all the species which he 
had named and described. And I must here observe, that in the in- - 
stances in which I have differed from his decisions, I beg to bear 
testimony to his great acuteness in appreciating minute differences ; 
but the rocks upon which the greater portion of his species will even- 
tually be lost are want of comparison with specimens already in his 
herbarium, and of reference to the works of other observers. On the 
last account, however, something must be allowed, as he was, by his — 
residence in the south-west of Ireland, cut off from the opportunity of — 
consulting many of the rarer or more costly works of continental - 
botanists; indeed, Dr. Taylor appears to have trusted far too much to 
his memory. 
Several sets of these collections having been examined by Mr. 
Wilson before the remainder came into my hands, I applied to him for 
a list of the species he had found in them, which he immediately 
supplied me with; and as none of the sets corresponded in all parti- — 
culars, I have adopted the numbers used in his list, as far as possible, — 
VOL. III. H 
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