472 BOTANICAL GAZETTE [JUNE 
adjacent parenchyma, though at first richer in chromatin. In most active 
nectaries they are said to have a predilection for blue stain, though in some 
cases they have been found, either at first or throughout, to take the red stain 
by preference. 
The behavior of the chromatin and nucleolar contents of the nuclei dur- 
ing activity of the gland appears to differ greatly in different plants, but in 
general one or both diminishes noticeably. Nuclei becomes deformed and 
lobed or even fragmented, send out pseudopodia like prolongations to the So 
ends of which plasma threads become attached, or the nuclear membrane is : 
absorbed and the nuclear material diffuses in the cytoplasm, which itself : 
gradually diminishes or even disappears ; meantime the starch accumulation 
in the vicinity of the nectary is used up, though some reserve starch is often 
brought into this tissue later. 
0 In the main the descriptions of structure are clearly written, and the plates 
are all excellently drawn and reproduced. If any fault were to be found 
with the paper it would be that the student of a given genus or species is 
confused by the division of the work and plates into separate sections, each 
of which contains partial studies of a number of species, which, in the absence 3 
of a general index, cannot well be united by the reader.—W. T. . 
Physiological plant anatomy.’ 7 
THE first edition of this book appeared in 1884. In its preface the author 
ab _ explains that his endeavor was to make plain the connection between anatom- 
eae ical structure and physiological performance. Inthe preface of the present 
edition the author states that the subject has made such progress that the 
a book must be much enlarged. The plan and manner of arrangement has 
‘not been materially changed, about 150 pages and 95 illustrations having ae 
been added. The Same number of chapters is retained, although an entirely 
new one on the apparatus for special functions is added; the two on normal aus i 
open peg in thickness being here combined. An introduction 
: of the plant cell is added to the first chapter. In short, 
arene still holding to the same object as before, the book is enlarged and 
oe hates in metas meee The author says of the new edition : 
is 1 ents of pk siological anatomy, but a veritable sein boekes 
‘not a hand book or aida ‘because a great deal of relevant matter has been 
omitted. — Al the research — agg broaden our knowledge is omitted, me 
: ed it. oe 
