882 THE JOURNAL OF BOTANY 
the authors do not follow what they describe as the current view, 
fl ma 
structures both above and below. In their opinion, too, the vast 
majority of simpler flowers are better. regarded as primitive than 
reduced forms. In the two following chapters, which deal respec- 
tively with the microsporangium and macros orangium, attention is 
awn to the numerous cases of a cauline as opposed to a foliar 
origin of the sporangium, especially in the case of the ovule, and 
it 1s suggested that the cauline origin should not be regarded 
as indicating the primitive character of the group in which it 
occur 
Space will not allow us to follow in detail the successive 
treatment in the following chapters of the male and female 
chest interest 
fo) 
nd are a useful presentation of the series or cohorts -0 
the Monocotyledons and the two divisions, dArchichlamydee and 
nally, under the title Phylogeny and Angiosperms, the authors 
y discuss the various views which have been put forward as to 
are thus summed up. The Monocotyledons and Dicotyledons 
_ Fepresent two independent lines derived directly from the Pterido- 
= stock, probably from the. Filicales. At the same time the 
