422 BOTANICAL GAZETTE [ DECEMBER 
In his Flora Fernandesiana 10. 1835, Montagne also writes Uredo 
Cestri Bertero and Uredo Hydrocotyles Bertero, not Montagne as quoted 
in references to the work.—E. W. D. Hotway, Decorah, Lowa. 
PUCCINIA INANIPES. 
THROUGH some error the description of this species (BOT. GAZ. 31: 
332. 1901) is incomplete. It should be: 
Puccinia inanipes Diet. & Holw., n. sp.—Sori on both sides of the 
leaf, particularly on the upper, scattered, punctiform; uredosori brown; ° 
uredospores elliptical, brown, echinulate, 25-30 X 20—25p; teleutosori 
black ; teleutospores broadly elliptical, rounded at both ends, and 
when dry with both ends depressed, scarcely constricted, apex with a 
very slight cucullate thickening, smooth, dark chestnut-brown, 34-42 X 
28-31, with long hyaline hollow pedicels which easily break at the 
base from the host plant. : 
On Lupatorium brevipes, Oaxaca, Oct. 18, 1899, no. 3677.-— E. W. 
D. Hotway, Decorah, Jowa. 
THE POSITION OF PLEUROCOCCUS AND MOSSES ON 
TREES. 
HavinG observed during the past winter that certain chlorophyll- 
containing plants do not grow most abundantly on the north side of 
trees, as is commonly supposed by the laity at least, and as stated in 
at least one of the more recent books on botany, the author herewith 
presents some of the results of his observations, which are still im 
progress. 
The trees on which the observations were made were located in 4 
piece of woodland and were principally black oaks with a few white 
oaks, chestnuts, and beeches. The chlorophyli-containing plants 
found growing upon these trees were principally pleurococcus and 
some members of the Bryaceae. These were growing upon all sides 
on the bark of the trees except the southwest side, and approximately 
in the following ratio: In ro per cent. of the trees upon the west 
side; in ro per cent. upon the northwest side; in 10 per cent. upon the 
north side; in 20 per cent. upon the northeast side; in 35 per cent. 
upon the east side; and in 15 per cent. upon the southeast side. 
