Quercus muehlenbergli - Yellow Oak, Chinquapin Oak, Yellow Chestnut Oak 
(list very incomplete - this oak seen only a few times) 
"Root" galls 
Flower galls 
Acorn galls 
Cell in side of acorn cup as in Fig#56. Never reared. 
Stem galls 
Woody stem swellings 
Neuroterus rileyi Ashm. 251. Fig.296. Local thickenings of the bark in late 
summer, confluent, one-to many- celled, covered with normal bark. 
Leaf galls 
Detachable 
Acraspis hirta (O.S.). 255* Fig.188. Globular, 4-6 mm. in dia., on under 
side of leaf on a secondary vein, one to three on a leaf,one-celled. 
Fhilonix nigra (Gill.). 2 65* Fig.228. Globular, 5-8 mm., covered with gray 
felt, on under side of leaf in fall, dropping when mature. 
Fhylloteras sigma Weld. 24o. Fig.241. Flat,sessile, 6-7 mm. long, on under 
side of leaf near the edge, in the fall. Rare. 
Similar to s igma above but straight and without a scar in center , green, on 
a vein. Fig.515* Manhattan,Kansas, June 27 (B.W.Welld). 
Integral 
Neuroterus majalis (O.S.). 222. Fig.26o* Fleshy green parenchyma thickening 
projecting on both sides of leaf when it is hardly half-grown. 
Neuroterus niger Gill. 225. Fig.269* Round parenchyma thickenings, 2 mm. in 
dia., more prominent above with a nipple below, in numbers along the 
main veins in the fall. 
Quercus rryrtifolia - hurtle Oak, Seaside Scrub Oak 
"Root" galls 
Eumayria floridana Ashm. 582. Fig.42. Abrupt rounded mass with a botryoidal 
surface, up to 25 mm. in dia., at surface of ground on sprouts. 
Sphaeroteras caepuliforme (Beut.). 556. Fig.51. Onion-shaped, in cluster 
surrounding stem below ground, cream-colored to brown, 7-9 mm. high. 
Dryocosmus favus Beut. 595. Figs.46—7» -Dense cluster at or below surface,up 
to 60 mm. in dia., consisting of up to 250 individual galls, 11 mm. long 
Trisoleniella enigma (Weld). 586. Figs.54-5. Cluster of up to 150 at the 
base of sprouts. 
Callirhytis ovata Weld. 456. Fig.49. Ellipsoidal, sessile, single or in 
group, 6 mm. high by 5 mm. in dia., colored like normal bark. 
Flower galls 
Callirhytis operator (O.S.) sex.gen. 455a. Fig. 58. Woolly, white. 
Callirhytis myrtifoliae (Beut.). 45U Fig.56. Arrowhead-shaped, one-celled, 
scattered along among normal stamens on staminate axis, drying to black 
Globular, short-pubescent. Fig.55. 
Aoonn galls 
Amphibolips fuliginosa Ashm. 282. A plum gall on side of acorn cup, 7-10 ram 
in dia., dropping in the fall. 
Callirhytis balanopsis Weld. 406. Fig.76 • A pip gall in fall on young 
acorna of current season, green,4 mm., secreting honeydew. 
A pip gall in Oct. like Oal lirhyti a operato r (O.S.) Fig.65. 
A stone gall inside a mature acorn like Fig.70• 
66 
