374 



The October number contains, in addition : — 



' Notes on a few Species of Hieracium ; by James Backhouse, Jun.' 



' Occurrence of Bacillaria paradoxa of Gmelin at Stafford ; by the 

 Rev. R. C. Douglas, M.A.' 



' Note concerning Anacharis Alsinastrum ; by Charles C. Babing- 

 ton, M.A.' 



' Literature :' — ' Botanische Zeitung,' ' Annales des Sciences Natu- 

 relles.' 



* Proceedings of Societies :' — ' British Association for the Advance- 

 ment of Science,' ' Botanical Society of London.' 



' Record of Localities.' 



Mr. Backhouse's paper on Hieracium is curt, but excellent. The 

 author observes that, having had an opportunity of examining Nor- 

 wegian plants of H. alpinum, in a growing state, he found the dis- 

 tinguishing characters as strongly marked as on the Scotch moun- 

 tains : it was dwarf, unbranched, and had lax, blunt, foliaceous outer 

 involucral scales. The variety melanocephalura of Fries was dis- 

 tinguished from the type, by its acute involucral scales being all alike 

 in form, and the entire plant having shorter hairs. 



H. nigrescens, when living, is marked by dark, appressed involucral 

 scales, broader, less acute leaves, and generally branched stems. 



Home specimens of H. pallidum, given to the author by Professor 

 Blyth, differ from the Scotch plant, in their more lanceolate, acute, 

 and dentate leaves, and in the smaller size of the entire plant. 



H. Dovrense, said by Fries to have been found in Britain, the 

 author considers a good species. The upper leaves are rather por- 

 date and semiamplexicaul, the lower ones narrower at the base, and 

 the root-leaves stalked and blunt. 



The Clova H. saxifragum is not the normal form of that species, 

 having broader, blunter leaves and larger heads, with darker involucral 

 scales. 



H. plumbeura is to be regarded as a truly distinct species, differing 

 from caesium and murorum in the absence of stellate pubescence on 

 the involucres and panicles, and in having broadly-acuminate, apicu- 

 late, dark involucral scales, with green margins ; it also flowers earlier 

 than caesium. 



Mr. Babington's note on Anacharis Alsinastrum appears to have 

 been elicited by a note in the September ' Phytologist.' It is as fol- 

 lows : — 



" In order to prevent future mistakes it is desirable to place upon 

 record that this plant was introduced into a tub in the Cambridge 



