320 L’Abbé E. Coémans on the Cladonize 
nor in that of Flérke. I am therefore unable to supply any 
information concerning this problematical plant. 
35. Cladonia acicularis, (Ach.) Syn. p. 275 et hb. ejusd. 
This plant was generally regarded as belonging to C. maci- 
lenta; but now there is no doubt that it ought to be referred 
to the genus Pilophorus, and form the P. acicularis of Th. M. 
Fries. 
36. Cladonia aggregata, (Ach.) Syn. p. 275 et hb. ejusd. 
The Cladonia aggregata of Acharius and that of Florke are, 
according to the herbaria of these authors, two entirely different 
plants. That of Acharius is the true C. aggregata, Eschw. 
Brasil. p. 278, and that of Flérke the C. gorgonea of the same 
author, Brasil. p. 271. 
The collection at Helsingfors contains only a miserable speci- 
men of this species; another specimen has been abstracted. 
37. Cladonia racemosa, (Ach.) Syn. p. 275 et hb. ejusd. 
Under this name is found, in the Acharian herbarium, the 
large and robust form of C. furcata known under the name of 
the var. racemosa, and also a specimen of C. pungens nivea, Fik., 
from Guadeloupe. 
38. Cladonia furcata, Hffm., (Ach.) Syn. p. 276 et bb. ejusd. 
The Acharian specimens represent the ordinary type. The 
var. subulata is not distinguished in his herbarium, but is found 
intermixed with other specimens. Many tufts of C. furcata 
bear here also, some with a sign of doubt, some with that of 
affirmation, the name of C. alcicornis, which proves that Acha- 
rius entertained doubts, even to the end of his life, as to the true 
characters of this species. 
39. Cladonia uncialis, Hffm., (Ach.) Syn. p. 276 et hb. ejusd. 
Here is found the true C. uncialis, which Acharius had con- 
founded before with C. amaurocrea. The var. adunca is scarcely 
different from the type, and may therefore be erased. 
It must be remembered that the varieties dicrea and obtusata 
of C. oxyceras (Ach.) are referable to this species. 
40. Cladonia rangiferina, Hffm., (Ach.) Syn. p. 277 et hb. 
ejusd. 
The first two varieties of Acharius, gigantea and cymosa, may 
be suppressed; for both represent the type—the first as the 
sterile form, the second as the fertile or spermogoniferous form. 
The largest specimen of the form gigantea in the Acharian her- 
barium measures 12 or 13 centimetres im Jength. 
