232 THE JOUJINAL OF BOTANY 



J. Hutchinson. Beginning with a full and careful account, both 

 literary and botanical, of the genus as hitherto understood, the 

 authors 2)roceed to a discussion of the species : the former is now 

 divided into seven — Z,eptopyrum lieichb., Eiiemiori Kaf., Semiaqui- 

 legia Mak., Souliea Franch, — to which are added Asteropyrum 

 and Paraquilegiay here first described ; twelve species (one, /. 

 Dalzielii, being new) are retained under Isopi/rum. The paper, 

 which is accompanied by excellent figures, is in every way a model of 

 what such things should be. 



In No. 6 of the Bidletiii Mr. W. B. Turrill continues his contri- 

 butions to the flora of Macedonia ; the present instalment is based 

 chiefly on a collection made by Mr. L. V. Turner in 1917-18 and in- 

 cludes nearly 120 species and varieties recorded for the first time in this 

 series ; they were collected chiefly in the neighbourhood of the Kendina 

 Gulf — a new variety {rigida) of Veronica Chamcedrys is described. 

 Mr. Turrill has a note on *' Amphichromy in Heather," based upon a 

 plant of Calluiia vulgaris from Alness, N.B., showing j)urj)le and white 

 inflorescences on the same stock, with a reference to Lindman's paper 

 in Bot. Notiser. 1907, in which a similar plant is described and a 

 terminology for flower-colouration, here translated, is proposed. He 

 also records the occurrence near Rudgewiek, Sussex, of a striking form 

 of Cardamine pratensis which has one-flowered peduncles about 

 9 centimetres high, quite destitute of cauline leaves or bracts. This 

 was described by Sternberg and Hoppe in 1815 as C. pratensis var. 

 uniflora, and was collected by H. C. Watson in Braemar in 1844, but, 

 growing as it did among quantities of the ordinary form, " may be 

 looked upon as an unstable mutation or sport." In the same number 

 Mr. Dunn describes and figures a new genus of Urticacece-ProcridecB 

 which he names Smith iella : "the genus is resj^ectfully dedicated to 

 Miss Matilda Smith, and the specific name \_myriantha\ not inappro- 

 priately refers to its innumerable flowers as well as to the very large 

 number of beautiful drawings and paintings of flowers with which 

 Miss Smith has for so many years decorated the Botanical Magazine^ 

 the Icones Flantarum, and the Kew Bulletin.'''' 



The Annals of Botany for July contains a continuation of 

 " Studies on the Chloroplasts of Desmids " by Dr. Nellie Carter : a 

 paper by Dr. H. S. Holden, " On the Anatom}^ of some Typical 

 Seedlings of Impatiens Boylei Walp." [ = J. glandulifera Boyle] ; 

 Dr. Bottomley writes on " The Growth of Lemna Plants in Mineral 

 Solutions and in their Natural Medium," and on '' The Effects of 

 Organic Matter on the Growth of various Water Plants in Culture 

 Solution " ; Mr. F. T. Maclean discusses " The Carbon Dioxide 

 Absorption of Coco-nut Leaves " ; Dr. J. F. Dastur writes on " The 

 Mode of Infection by Smut in Sugar-cane " and on " Clioanephora 

 cucurhitarum Thaxter on Chillies " ; Dr. F. J. Lewis and G. M. Tuttle 

 have a paper on "Osmotic Properties of some Plant Cells at Low 

 Temperature " ; and Mr. V. H. Blackman has a note on " Radio- 

 activity and Normal Physiological Function." 



We note with great regret the death, in his 87th year, of Mr. 

 John Gilbert Baker, which occurred at his residence at Kew on the 

 16th of last month. We hope to publish in an early number a full 

 tribute to his memory. 



