these species of pine, according to Sudworth,” has a range extending far- 
ther north than the southern border of Tennessee. This distribution is 
well outside the 180 mile limit established earlier in this paper. Two other 
species of pine, ?. echinata and P. virginiana, have a distribution which 
might possibly meet the requirements, but there seems to be no evidence 
other than their distribution that they carry the iecia of this rust. Since 
Cronton monanthogynus is an annual, the evidence seems to favor the idea 
that the urediniospores are able to survive the winter. 
Two species of Pucciniastrum occur in Indiana, P. Agrimonia, on 
Agrimonia, and P. Hydrangea, on Hydrangea. The former has been taken 
in five counties in the State at various times since 1896, and usually the 
infection is severe. P. Hydrangew has been taken three times in Tippe- 
canoe county only. No zcia are known as yet for either of these species, 
but the «ecia of the different species of Pucciniastrum, so far as known, are 
species of Peridermiwm on leaves of Abies and Tsuga. Judging by the dis- 
tribution for these trees given by the manuals, Indiana is propably just 
outside of a 180-mile zone south of their distribuion. These trees are 
often planted for ornament, however, and the possibility exists that the 
zecia are to be found in the State. The rust occurs, however, as far south 
and west as the state of Mexico in the country of Mexico, and it is not to be 
expected that a species can travel so far in a season. 
Among the Coleosporiacex, there are at-least four species which have 
been collected in the State under conditions which lend color to the idea 
that they were carried over the winter in the uredinial generation. The 
rusts of the genus, Coleosporium, haye their uredinia and telia on various 
broad Jeayed plants. Their :ecia are leaf inhabiting species of Peridermi- 
um on pines. Coleosporium Terebinthinacew was collected in the autumn 
of 1912 and 1914 on Silphiuwm terebinthinaceum in a restricted area near 
Lafayette. In the latter season, the species was limited to a patch a 
few rods in extent; other Silphiwm plants in the same patch were unaf- 
fected; and no affected Silphium plants could be found across a small 
ravine, although unaffected ones occurred in abundance. Other plants a 
mile or so away in two directions were examined but were found unin- 
fected. The ecial stage of this rust is not known, and so it is impossible to 
Say positively how near to this locality the cia may approach. The near- 
est collection of Peridermium on pine leaves to be found in the Arthur her- 
barium is an undetermined collection on Pinus virginiana from Mammoth 
%Forest Atlas. Geographic distribution of North American Pines. Part 1, Maps 25 and 35. 1913. 
