941 



" 3, P. nustriaca (Craiitz) ; leaves in a rosette obovate obtuse larger 

 than the oblong-lanceolate ones on the flower-shoot, wings of 

 the calyx oblong or obovate obtuse their nerves simple or sliyhtly 

 branched free, capsule wedge-shaped below roundish broader 

 than the wings, lobes of the arillus nearly equal, lateral bracts 

 shorter than the pedicels. 



" [a. genuina ; leaves of the rosette smaller than those of the branch- 

 ing flower-shoot, flowers smaller, capsules rounded below. 

 " P. austriaca, ' Crantz, Aust. v. 2 ;' Reich. Iconog. i. 23, t. 21, f. 

 39, et Fl. excurs. 350, et Fl. exsic. 1923 !]. 



" B. uliginosa ; leaves of the rosette larger than those of the nearly 

 constantly simple flower-shoot, flowers larger, capsules wedge- 

 shaped. 

 " P. uliginosa, Reich. Iconog, i. 23, t. 21, f. 40, 41, et Fl. excurs. 

 350, et Fl. exsic. 52 ! ; Fries, Summa, 154, et Herb. Norm. 

 iii. 14 ! 

 " P. myrtifolia. Fries, Nov. ed. 2, 227 ; Wimm. et Grab, Fl. Siles. 



iii. 24. 

 " P. amara, Sven. Bot. t. 484 ; Fl. Dan. t. 1169. 

 " P. austriaca, Coss. et Germ. Fl. Par. 56, t. 7, not Reich.'"' 



The paper, in extenso, forms part of the ' Transactions of the 

 Botanical Society of E(^nburgh,' and will be received by botanists as 

 a valuable contribution to our knowledge of the genera Thalictrum 

 and Polygala ; although we are fully aware that considerable diffe- 

 rence of opinion will exist as to the status of the forms described. 

 We are quite willing to leave this an open question, but at the same 

 time acknowledge our great obligation to Mr. Babington, for the 

 pains he has taken in collecting and arranging the materials so requi- 

 site to the formation of just conclusions. 



On some Excrescences, 8fc., on Plants, occasioned or inhabited by 

 Mites. By Mr. James Hardy.* 



A FEW days ago, I met with several small galls on the leaves of 

 the hackberry {Prunus Padus), which I expected would furnish the 

 larva of a gall-midge (Cecidomyia) or gall-fly [Cynips). They are 



* From the ' Proceedings of the Berwickshire Naturalists' Ckib.' 

 VOL. IV 6 E 



