148 The Plant WoRtn. 



in differentiating the palustrine areas are such matters as 

 whether uater is running or stagnant, constant oi seasonally 

 interniittent in level, and whether the area is young or old, in 

 terms of the degree to which peat formation has gone on. It 

 appears more than probable to the reviewer that many of the 

 palustrine areas do not possess constellations of physical condi- 

 tions which are sufficiently distinct to explain the differences 

 in their vegetation, as c. q. the Gum {JJqnidamhar) swamps 

 and the '\'\t\ iC/iftonia) swamps of western Florida. In fact, 

 tlic work of I'ar] er suggests a most promising tield for work on 

 the relative o] eration of i)hys'cal and historical factors in a 

 com] arativel\- recent set of habitats. — I'. S. 



GkI'I-k Climatr Axi) A'lcci'TATiox. — -Koutos, in a pai)er * 

 (in the infiucnce of climate on Greek forest \egetat'on, 

 has d:scus^ed the clmatc of coast and hill c(nmtr\-, its changes 

 corres])(inding to latitude and altitude, distance from the sea, 

 direction of \\iiuls in relati n to rain, ; eographic features and 

 climatic conditit ns incident to as] ect and exposure. The in- 

 fluence of these varioiis climatic factors in their relation to the 

 forest vegetation of Greece is consideied in some detail, as, for 

 example, in regard to the influence of wind in determining 

 the distribution of xero])hytic, h\groi?h>tic and tropM)ijliytic 

 s] ecies of trees, and a somewhat extended account is given of 

 the \arious f jrest zones a corrtlated with climatic factors. — -V. 

 j\I. Si'.\i,i)iX(;. 



NOTKS AND CoALAllvNT.. 



iSritish l)otanists have shown no little activity within the 

 ])a^t vear in ]?li\ togeographical work. Moss, Rankin, and Tans- 

 lex- h"a\e re])()rted in 'Jlic New l^hyiohnjist on "The Woodlands 

 of I'ingland," attem])ting to deal, in a general way, with the char- 

 acter and distribution of different types of natural and semi- 

 natural woodland in l{ngland. Types of Knglish woodlands are 

 defined in connection with details as to composition and eco- 

 logical factors. It a])pears that "climate shows its effects in 



♦ Kontos, v., lipidrasis epi ten hellenikeii dasikeii blastcsin toy hellikoy kliinatos. 78 pp. 

 Athens, 1909, 



