﻿377 



in Macfadyen's Flora oj .1, ii. *W>. and is apparently merely 



synonym. A good many names published in Beliquia Baldwiniana 

 are not taken up ; and Perdicesca, the name which Provancher (Fl. 

 r ■ , : 2. i lj proposed to substitute for Mitchella, finds no place.* 



comprehensive worker than Mr. -lark, on wmiul haw l^.m nillv 

 justified in ignoring. The names in Wei witch's s ;/n o,,, ,.,- r iic«tir„ 

 are not included, and ins Apontmncntus seems to have been in- 

 sufficiently searched. These things are mentioned, not from any 



[■'■■'..■■ . ■ , : ■ _ _ y L 



for the completion of the work about the middle of 1895. 



James Bbitten. 



PoKunogeUm Succin Esmrati. Fasciculus 1. By Gustaf Tisklius. 

 Stockholm. 



The first part of this important contribution to the natural 

 history of the genus Putamogetun is now being issued to subscribers; 

 it comprises one-third of the whole work, and contains pp. 1-7 of 

 title, index, and notes, and sheets 1-50 of beautifully dried and 



n. .o - ... : 



others already in the herbarium— a method we venture to hope 

 that will not often be adopted. 



It is to be regretted that only so small a number of copies as 

 thirtv can be issued. This limit is absolutely fixed by the small 

 supply of some of the scarce forms obtainable by Br. Tiselius. To 

 reme y this as far as possible, he numbers each copy, and will 

 print a list of subscribers in the last fascicle, so that students may 

 know where the work may be consulted. It is also to be hoped, in 

 furtherance of this object, that copies may be secured by the 

 principal national herbariums of Europe. 



As so many of the Scandinavian species of the genus have 

 somewhat similar forms in the northern parts of Great Britain, 

 and as nearly all these species occur with us throughout the 

 kingdom, it will perhaps be of interest to readers of this Journal 

 t 



to add any remarks that may seem called for. But in the first place 

 it will be well to remember that Br. Tiselius has not attempted to 

 give any synonymy, nor to offer a fixed nomenclature. Neither has 

 he tried to decide what forms may be of hybrid origin, nor to draw 

 a fast line between species and varieties or states. This is left in a 

 great measure to the judgment of individual students and to future 



* "Nous avons change le nom du genre Mitchella en celui de Perdicesca, 



■ o:.. .-. .• 



rien d'effrayam pom de. ui-t-hlea nuuvnises '' > !).— Prov. Fl. Canad. vii. 



