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NEW YORK STATE MUSEUM 
Rumex crispus L. 
Mr. Fuller sends specimens of a Rumex collected near Rochester, 
in a field locally known as the Riley lot. According to his notes and 
the characters exhibited by the specimens, the plants are from four 
to six feet high, which is nearly twice the hight of the ordinary R. 
crispus growing in the same field. Its leaves are smoother and more 
fleshy, paler, less veiny and less crisped on the margin than those of 
the yellow dock which they otherwise resemble. Its panicles are 
paler and the fruit valves are larger and more rounded with com¬ 
monly only one of them grain-bearing. They are entire or but 
slightly toothed on the margin. The plants begin to blossom four or 
five weeks earlier than R. crispus , but they ripen few or no seeds, 
nearly all the flowers being abortive and falling about the first week 
in July. This indicates that the plants are hybrids. A hybrid of 
R. crispus and R. obtusifolius is known and was reported by Professor 
Dudley in his Catalogue of Plants of Cayuga Valley, but the speci¬ 
mens from Rochester do not agree with the description given of that 
hybrid, and the tall growing plants and the broad rounded valves 
without conspicuous teeth on the margin and commonly only one 
grain-bearing indicate rather a hybrid between R. crispus and R. 
Patientia. 
Arceuthobium pusillum Pk. 
This parasite on the spruce has been found by M. A. Baxter as far 
west as Rochester. 
Hicoria alba (L.) Britton. 
% 
The mocker nut, (Carya tomentosa Nutt.) is common enough on 
Long Island and in the southern part of the State, but in other parts 
it is either wholly absent or occasional in its occurrence. The local 
catalogues of plants do not record it in the western part of the State. 
It is credited to Oneida county on the authority of Knieskern and is 
mentioned as “scarce” in the Catalogue of Plants of Schenectady 
county. It occurs near Cedar Hill, Albany county, which is the most 
northern station in which I have seen it. 
Quercus macrocarpa Mx. 
The form of this oak recognized by Michaux as a distinct species, 
.and to which he gave the name Quercus olivoeformis , is now generally 
