40 Psyche [April 



inflated calyx; kataplasma, organoid type; calyx slightly inflated 

 to sub-spherical form, 2 mm. dia,, segments but slightly differen- 

 tiated if at all, yellowish, normal nutlets undeveloped. Eather 

 abundant on specimens of pennyroyal seen. Jeffersonville, Ind. 

 1-4 larva? present in galls. 



Collected by Mr. Chas. C. Deam. 

 ' Fig. 13, upper, normal calyx; lower, affected calyx. 



TIeterothecn. 

 Lepidopteron. Cecidinm nov. Fig. 14. 



14. On Heterotheca siihaxillaris (Lam.) Britton and Rusby, 

 stem gall; kataplasma; simple fusiform enlargement of stem, 

 3.5-5 cm. long, about 1 cm. wide, epidermis split into elongate 

 diamond-shaped areas concolorous with stem, chamber relatively 

 large, shape of gall. Xot uncommon, Arlington, Texas. Types in 

 collection of writer. 



Ilex. 

 Cecidomyia sp. Cecidium nov. Fig. 15. 



15. On Ilex vomitoria Ait., leaf; kataplasma, leaf -fold type; 

 a simple fold of leaf along midvein with accompanying thickening 

 of part involved, commonly affecting the terminal leaves in which 

 the largest part of the blade is involved, 3-5 mm. long, 2-3 mm. 

 wide, surface same as normal leaf except color is lighter or where 

 exposed to sun, red tinged; Carolina Beach, ^N". C. (Fort Fisher) 

 occurring on shrubs exposed to ocean; rather common. Types in 

 collection of writer. 



Lepidium. 

 Cecidozoon undetermined. Cecidium nov. Fig. 16. 



16. On Lepidium virginicum L., stem or root surface; kata- 

 plasma; simple, sub-globular, sessile, at stem base or crown of 

 root. .5-1 mm. dia., yellow, smooth; in each gall a yellow-ovoid 

 egg was found (.2x.l5 mm.) enclosed by the homogenous, pith- 

 like tissues of the gall; Arkansas. Types in collection of writer. 



The fact that this gall has developed in the presence of the uu- 

 hatched egg indicates the stimulus to have originated with ths 

 adult cecidozoon at the time of oviposition. I was unable to rear 

 the adults and am unable to assign the gall to any group. 



