Quercus marilandica 
Black Jack, Jack Oak 
"Root” galls 
Eumayria floridana Ashm. 582. Fig.42. Abrupt roundad maaa with a botryoidal 
surface , up to 25 mm. in dia., at Burface of ground on sprouts. 
Sphaeroterae caepuliforme (Beut.). 556* Fig.Jl. Onion-Bhaped, in a cluster 
surrounding stem below ground, cream-oolored to brown, 7-9 mm.high. 
Dryocosmus favua Beut. 595. Figs,46-7. Dense clusters at or below surface 
up to 60 mm. in dia., consisting of up to 250 individual galls. 
Flower galls 
Like Oalllrhytl s o perator (O.S.) sex.gen. 455a. Fig.58. 
Oallirhytis florensis Weld. 429. Fig.288. Galls scattered among the stamens 
in a shortened catkin, conical,2.2 mm. long Type host. 
Acorn galls 
Like Oal llrhyt ls operato r (O.S.) agamic. 455b. Fig.65. 
Amphibollps gainesi Bass. 285. Fig.6l. A plum gall, up to 52 mm. in dia., 
and does not wrinkle in drying. 
Oallirhytis balanaspis Weld. 404. Fig.68. A pip gall in tail on immature 
acorns 6 mm. in dia. and larger than normal young acorns,secreting 
honeydew, 
Oallirhytis balanopsis Weld. 406. Fig.76. Pip gall in fall on small acorns 
of current season, secreting honeydew. 
Oallirhytis fructicola Ashm. 451. A stone gall like Fig. 70 inside mature 
acorn in fall.not distinguishable in field from Cal lirhytid fr uctuos a 
Weld and sometimes reared along with it. 
Oallirhytis fructuosa Weld. 452. Fig.70. Stone gall inside mature acorn. 
Oallirhytis sp. Ex gall like above from Batesburg,S.Oar. reared Apr.17- 
May 5 the second spring. 
Bud galls 
Amphibollps globulus Beut. 284. Fig.102. The tyoe gall is like the figures 
and labeled: "VI, LakehurBt.N.J." and was on ^.marilandica. 
Amphibollps murata Weld. 289. Fig.115. Lemon-shaped, tan, smooth, 8-12 mm. 
in dia., in fall, wall thick, spongy tissue about larval cell. 
Andricus ellipsoidal!* (Weld). 504. Fig.94. Spindle-shaped, blunt at both 
ends, up to 14 mm.long, smooth, mottled, dropping when mature. 
Cell inside bud. Exit hole thru bud scales. Seen in Fla. in April. 
Stem galls 
Woody stem swellings 
Abrupt hemispherical swellings, 10-11 mm. in dia. In Texas in Sept. 
Spindle-shaped or lumpy swellings containing many cells in thickened bark, 
50 by 10 mm. Seen in Texas and Mo. in Sept. 
Detachable 
Dryocosmus imbricariae (Ashm.). 597* Banded Bullet Gall. Globular, 7-10 
mm. in dia., red, single or group on twigs, dropping in fall. 
Oallirhytis ventricosa (O.S.). 485. Figs.144-5. Conical,short-pubes cent, 
sessile, single or small group, green when young, turning brown and 
dropping later. 
Andricus formosu* (O.S.). JlO. Fig.147. Fig-shaped, in cluster oil twig in 
spring, dropping when mature (in June in D.C.). 
Dryocosmus floridensis (Beut.). 596. Fig.297* A rosette of green bracts 
sessile on trunk or twigs, larval cell in center. 
Cells hidden under bark 
Oallirhytis crypta (Ashm.). 418. Figs.162,501. Cells just under bark in the 
wood. If numerous the twig may be hypertrophied. 
Fig.167. Cell under a very slight blister in the bark. Texas in Bept. 
