DECADES OF FUNGI. 315 
Scleroderma. Texense, B. Sphæria rhodomphala, B. 
Secotium coarctatum, B. — tinctor, B. 
— melanosporum, B. Sporidesmium concinnum, B. 
Septonema spilomeum, B. Stereum illudens, B. 
Sistotrema aufochthon, Mont. — obliquum, Mont. & B. 
& B. Thelephora radicans, B. 
Spheria capnodes, B. Trametes incana, B. 
— elevata, B. 
— fulvo-pruinata, B. APPENDIX. 
— inspersa, B. 
| — Leaiana, B. Myriangium Duriei, Mont. 
00 ~ pulvinulus, B. & B. 
= = rhizogena, B. — Montagnei, B. 
1 iid 
On a minute Fungus, PonisoMa Macropus; growing on 
Juniperus Virginiana in North America, by Dr. Wyman, 
in a letter addressed to Sir W. J. Hooker ; with some addi- 
tional remarks by the Rev. M. J. BERKELEY. 
(With a figure, Tas. XII. f. 6.) 
Boston, United States, 
May 8th, 1844. 
Dear Sir, 
l have taken the liberty of sending you the following 
notice of a microscopic fungus, to which my. attention was 
first called while engaged in examining the dense tufts with 
acerose leaves which are abundantly met with in the Juni- 
perus Virginiana of this neighbourhood. On investigating 
the peculiar growth last mentioned, minute specks were 
. noticed in every instance, on the stems of the twigs of which 
B they aré composed, and almost never elsewhere except 
In the excrescence known as the “ Cedar apple” These 
Specks are of a reddish colour, slightly elevated, about } to 
1 line in diameter, and’ in part concealed by a scale of cuticle, 
Under which they are developed, but which is ruptured as 
they increase in size, Having detached one of these masses, 
x A A2 
