34 



(Mem. Torr. Club, 5), Britton and Brown's Illustrated Flora, 

 Rhodora (1 : 68), Heller's Catalogue, and other publications. 



In the Kew Index, Walter's Anonymos capitat. is correctly re- 

 ferred to Burmannia, and the authorship of the combination 

 Burmannia capitata is credited to Martius. 



The correct synonymy of these two species is then as follows : 



Burmannia capitata (Walt.) Mart. Nov. Gen. et Sp. PI. 

 Bras. 1 : 12. 1824. 



Anonymos capitat. Walt. Fl. Car. 69. 1788. 

 Vogelia capitata Gmel. Syst. 2 : 107. 1791. 

 Tripterella capitata Mx. Fl. Bor. Am. 1: 19. pi. j. 1803. 



Gyrotheca tinctoria (Walt.) Sal. Trans. Hort. Soc. 1 : 327. 

 1812. 



Anonymos tinctori. Walt. Fl. Car. 68. 1788. 

 Dilatris tinctoria Pursh, Fl. Am. Sept. 30. 18 14. 

 Lachnanthes tinctoria Ell. Bot. S. C. & Ga. I : 47. 18 16. 

 Gyrotheca capitata Morong, Bull. Torr. Club, 20 : 472. 1893. 

 Several other synonyms for the latter are given in Dr. Mo- 

 ^ rong's paper. 



Columbia University. 



TRANSPIRATION OF RUST-INFESTED RUBUS 



By Frederick H. Blodgett 



On May 23d last, two branches of Rubus sp. were cut from 

 adjacent plants. The branches were as nearly alike in size and 

 number of leaves as possible, but one was healthy, the other 

 badly rusted (with Gymnoconia interstitialis). Fifteen minutes 

 after cutting they were placed in water. Each had wilted some- 

 what, especially in the new growth of which there were several 

 inches on each branch. The rusted branch was wilted consider- 

 ably more than the healthy one. The healthy specimen revived 

 when placed in water, the rusted one continued to wilt, the basal 

 leaves only showing any tendency to recover. 



On the 24th the test was repeated in a more careful manner. 

 The two branches bore the same relation to one another as 

 before, but they were placed in water immediately upon cutting. 



