VOLUME XLIII NUMBER 3 
BOTANICAL Gxzerre 
MARCH 1907 
RUBIACEAE: ANATOMICAL STUDIES OF NORTH AMER- 
ICAN REPRESENTATIVES OF CEPHALANTHUS, 
OLDENLANDIA, HOUSTONIA, MITCHELLA, 
DIODIA, AND GALIUM 
THEO. HoLm 
(WITH PLATES VII-IX) 
To students of plant anatomy few books have proved to be of 
greater service than SOLEREDER’s Systematische Anatomie der Di- 
cotyledonen.* It is a book that contains a vast amount of information 
as to the work that has been accomplished in anatomy thus far, and 
gives in concise and clear form the most important results in respect 
to the general characters of the dicotyledonous families, as well as a 
number of purely generic or even specific peculiarities observed in 
their internal structure; the classified lists of the enormous literature 
bearing on this subject are of no less importance. Whether the book 
be consulted for the sake of ascertaining the distinguishing characters 
of certain families or genera, or for obtaining a general view of the 
structure possessed by the dicotyledons, one is always sure to obtain 
exact information as to the plants that have been treated from this 
particular point of view. The number of dicotyledons that have 
thus far been studied is of course very large, and very few of the most 
interesting families or genera have escaped the attention of investi- 
gators. Most of the parasitic, saprophytic, and climbing plants, 
with their more or less anomalous structure, have already been duly 
considered and very carefully described. 
However, when we remember that most of the literature has been 
contributed by European botanists, it is readily understood that very 
t Stuttgart, 1899. 
153 
