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state, Delaware County; while for New Jersey the record is for 
Gloucester County, south of Philadelphia, and Cape May 
County in the extr.me southern end of the state. 
In the light of the data given aboveit appears that the emenda- 
tions to the last Gray's Manual would give to Ohio the honor 
of “farthest north" in the distribution of Tipularia and a glance 
at the map shows that the new station at Jefferson, Ohio, marks 
the extreme northern limit in the known distribution of the orchid. 
This last station is considerably farther north than either of the 
Ohio stations previously reported—Lorain and Cuyahoga Coun- 
ties—Ohio Naturalist, то: 34. December, 1909. 
In the latter part of August (1911) the writer had the pleasure 
of being guided by Mr. Sim up the gorge of Ashtabula Creek for 
perhaps two miles above the town of Ashtabula. То a naturalist 
this is a delightful place, abounding in insects and plants, and 
in the soft shales of the perpendicular bluffs bounding the gorge 
on either side àre excellent brachiopods and cone-in-cone struc- 
tures. Mr. Sim pointed out some large patches of Tussilago 
Farfara L. growing vigorously on the damp talus at the base of 
the bluff along the stream. This species is an interesting example 
of the spread of an introduced plant, it now being found in the 
East from Philadelphia to eastern Quebec and in various places 
along the Great Lakes to Minnesota. It occurs in several places 
near Erie, Pennsylvania; and besides Ashtabula County it has 
been reported in at least two other lake counties of Ohio,— 
Cuyahoga and Lake. 
In places along Ashtabula Creek the shaly bluffs rise almost 
perpendicularly to a height of perhaps one hundred and twenty- 
five feet; and here and there have a more or less well-developed 
forest-covering, which might be designated as a hemlock-birch 
association, with also much of the white pine and mountain 
maple (Acer spicatum). The birch has proved to be interesting, 
as approaching pretty closely the typical form of Betula lutea 
Michx. f., but yet differing in several points. The leaves are 
quite typically those of B. lutea in the subcordate form, quite 
pubescent beneath and with a larger number of veins than in 
B. lenta; the bark is yellowish and peels off in thin layers; the 
