142 NEW YORK STATE MUSEUM 



Quercus alba (white oak) 



*iio A yellowish green dimple, convex on the upper surface of 

 the leaf, lined within with a whitish or brownish fuzz. Perhaps 

 the same as our no. 112. 



Specimens from Kenwood, Albany co. N.Y. 



Quercus coccinea (scarlet oak) 



111 A dense mat of brown hairs (erineum) in large patches on 

 the under side of the leaf. 



Jarvis '07, p. 63, second sp. Ont. 



This may be compared with our no. 117. 



Quercus macrocarpa (bur oak) 



112 A large greenish yellow dimple, slightly convex above, 

 beneath filled with a dense brown pubescence. Sometimes turned 

 inside out forming velvety buttons under the leaf. The mite is 

 Eriophyes querci ( Garman) . 



Garman '83, p.138. (P hy t op t u s querci) Ind., 111. 



(Parrott '07. N. Y. Agric. Exp. Sta. Bui. 283, no. 4) 

 Jarvis '07, p.6i (Eriophyes querci) Ont. 



Jarvis describes the pubescence as white, and the galls as yellowish 

 red when old. Possibly his form is distinct. 



Quercus minor (obtusiloba) (post oak) 



113 ''Deformation of leaves on the margin." 



Hagen '85, no. 65 D.C. 



Quercus nana (bear oak) 



*ii4 A snuff brown erineum in large patches on the under side 

 of the leaf, filling the space between veins. Trichomes simple, fine, 

 matted, much like the normal tomentum of the leaf except that each 

 tuft of three or four hairs is elevated on a common stalk. Appears 

 similar to the form (no. 117) on Q. velutina, which is a 

 glabrous species. 



Specimens in the State Plerbarium from Center, now Karner, 

 Albany county (Professor Peck) labeled " E . quercinum Kz. 

 probably." See our no. 118. N.Y. 



Specimens from Glen Lake, Warren county (Mr Burnham) N.Y. 



