542 



The spinulose serratures begin in both about the middle of the leaf, 

 and are of a brown colour, and firm texture. The apex of the leaf in 

 the Canadian Udora is usually more pointed or lanceolate than of the 

 Whitadder Alsinastrum, but, in an aquatic plant, such a slight cha- 

 racter is of no consequence. Pursh, in fact, of the American plant, 

 says : — " Michaux describes the leaves to be oblong and obtuse, 

 which is only the case in the early part of the season ; at flowering 

 time they constantly are long linear and acute." — Flor. Amer. Sept. 

 p. 33. 



The American plant is "frequent from Canada to Virginia." Dr. 

 P. W. Maclagan writes me, that it is extremely common in Upper 

 Canada, " but I never could make more than one species, although I 

 looked at them well after I got Mr. Babington's paper. Dr. Gray 

 makes but one species in the Northern States." Dr. Gray's descrip- 

 tion of Udora canadensis is as follows : — " A perennial ? herb, growing 

 under water with elongated branching stems, thickly beset with pel- 

 lucid and veinless, 1 -nerved, sessile, whorled or opposite leaves," 

 which, in the specific character, he says are " oblong, ovate or lanceo- 

 late, finely serrulate (|- long)." All this agrees with our Berwickshire 

 plant. Dr. Gray continues : — " The staminate flowers break off as in 

 Valisneria, and float on the surface, where they expand and shed their 

 pollen to fertilize the stigmas, which are raised to the surface by the 

 excessively prolonged calyx tube which varies in length according to 

 the depth of the water." — Bot. North. Un. States, p. 462. 



Remarks upon Mr. Watson's Case between Mr. Andrews and Mr. 

 Babington. By C. C. Babington, Esq., M.A., F.L.S., &c. 



As the discussion between " C", who has now transferred the mat- 

 ter to Mr. Watson, and myself, is probably of interest to a very small 

 number of the readers of the ' Phytologist,' it is only from necessity 

 that I again intrude upon its columns ; but after the remarks of Mr. 

 Watson, in the number for May, I can take no other course. 



In the first place, 1 have to call attention to the following extract 

 from a letter addressed to Mr. H. C. Watson, on April 8 last, as it 

 totally contradicts the remark in his communication, that " a copy of 

 Mr. Andrews' paper was given by Professor Allman to Mr. Taylor, 

 for publication in the Annals." The extract is as follows : " Perhaps 

 you will also tell 'C that 1 have consulted Mr. Taylor, and the 



