62 . NEW YORK STATE MUSEUM 



Irregular, monothalamous, green twig galls, length i8 mm, diameter 12 mm, 

 when green covered with leaves, on Quercus species. Bassett '90, p. 82 



Cynipid. Andricus howertoni Bass. 

 Club-shaped, woody, apical galls on small limbs, the apex blunt and generally 

 turned to one side. PI. 2, fig. 9. Bassett '64, p. 685 



Cynipid. Scrub oak club gall, Callirhytis si mills Bass. 



4 Galls attached to branches and twigs and more or less separated from the normal Clant tissues (Compare 



with 3, p. 54 and also oak apples (10), p. 95. See also, b and c on p. 71 and d on p. 72. 



a Bullet galls, that is woody galls attached to the twigs and in small clusters or solitary 



(i) Polythalamous 



Subglobular, polythalamous, sessile twig gall, diameter 2 to 6 cm, on Q. 1 o b a t a. 

 FuUaway '11, p. 346 



Cynipid. i\ n d r i c u s c a 1 i f o r n i c u s Bass. 

 Globose, polythalamous, sessile twig galls resembling round apples, surface 

 brown, smooth, 2.5 to 5 cm, on Q. agrif olia. Bassett '81, p. 74 



Cynipid. Callirhytis pomiformis Bass. 

 Globose, irregular, yellowish brown to dark brown, mostly smooth and shining, 

 probably twig gall, diameter i to 1.5 cm, on Quercus species. Bassett '90, 

 P- 83 



Cynipid. Andricus maxwelli Bass. 

 Globose, irregular, hard, pithy, brown gall, externally finely granulated and 

 with a few short, blunt spines, interior hard, pithy, brown, polythalamous, 

 diameter 8—10 mm. Ashm. '97, p. 117 



Cynipid. Andricus murtfeldtae Ashm 



Irregular, rugose, yellowish brown, woody, polythalamous, apical twig gall, 



apparently with a long peduncle or this may be the apex of a leaf petiole, length 



2 to 4 cm, diameter i to 2 cm, on Q. agrifolia, Q. chrysolepis 



Ashm. '97, p. 120 



Cynipid. Andricus congregatus Ashm. 

 Clustered, variable, presumably green, soft, succulent galls occurring in leaf 

 axils and about as large as a chestnut or hazelnut. Beutm. '11, p. 354 



Cynipid. Dryophanta pumiliventris Bass. 

 Globose, clustered, polythalamous, buflf-colored twig galls, diameter 3 to 5.5 cm, 

 on Q. garryana. Gill. '94, p. 235 



Cynipid. Andricus s p o n g i o 1 a Gill. 

 Irregularly rounded, polythalamous, as it ages becoming brown, rugose, fissured, 

 length 55 mm, diameter 3.5 mm, on live oak. Beutm. '13, p. 243 



Cynipid. Andricus m o n t e z u m u s Beutm. 



(2) Small, monothalamous, without distinct central cell 

 (a) Situated in fissures in the twigs 



Irregular, brown, somewhat smooth twig gall arising from a slit and with trans^ 

 verse depressions, indicating coalescence, len-gth 25 mm, diameter 12 mm, on 

 Q. chrysolepis var. vaccinifolia. Fig. 64, 13. Beutm. '09, 

 P- 38 



Cynipid. Disholcaspis truckeensis Ashm. 



Globo.se, densely rugose, grayish, slightly flattened twig galls, the rugosites in 

 five or six transverse rows, diameter 2 to 2.5 mm, transverse 3 to 4 mm, the galls 



