[ERRATA OF VOLUME XII. 



189 



hl.ATF 



1826* 

 1827 

 1871 

 1897 



For p. 622, read p. 602. 



For Plates 1871, 1872; read Plates 1870, 1871. 



After ATHYEIUM FLEXILE, add Syme; and beneath tin's lino 



insert, Plate 1871. 

 After CETERACH OFFICINARUM, add Dew. 

 For Hurd Fern, read Hard Fern. 

 For Arthur Bennett, read A. W. Bennett. 



36-40 



After the word Brunn, strike out the comma. 



Strike out the words Var. a. genuina. 



Strike out N. glomerata, var. /3 Smithii, with the remarks re- 

 ferring to it, and add the synonymy to that of N. glomerata. 

 Messrs. Groves having intimated in the Journal of Botany, 

 1885, p. 350, that they had found nucules on Mr. Borrer's 

 Lancing specimen, induced me to re-examine it, and in a fertile 

 head taken from another part of the specimen, I find some ex- 

 tremely young nucules in their first stages of development ; the 

 two heads previously examined by me were probably too young, 

 as I could find nothing of the kind upon them, although care- 

 fully searched for under a power of 450 diameters. The var. 

 Smithii must therefore be considered to be founded upon an 

 immature state of N. glomerata. 



Strike out these lines beginning at the words ' The plant,' &c, as 

 there is a specimen of N. prolifera from the Glasncvin Canal in 

 the Herbarium of the late Dr. D. Moore, at Dublin. 



For the word but, read and. 



After var. ? (3. coimivens, add TV. E. Brown. 



After the words ' beneath the nucule ' add — ? (Messrs. Groves in 

 the Journal of Botany, 1885, p. 350, state that this is not the 

 case in their specimen, but do not say how they are situated. 

 As this is the normal position of the globules in the group to 

 which this species belongs, a further discovery of monoecious 

 specimens may possibly prove Messrs. Groves' example to be 

 abnormal.) 



For Isoetcs eu-lacustris, var. Morei, read Isoetis lacustris, var. Morci. 



For Poetes echinospora, read Isoetcs echinospora. 



For Athyrium alpestre, var. flexile, read Athyrium flexile. 



Strike out the words var. Wilsoni. 



N. E. Brown. I 



