On some female trees, however, I found a few anthers containing pollen grains
apparently sound. On the male trees most of the flowers include pistils, but
these likewise drop off at an early period; and the ovules, which ultimately
abort, are very small compared with those in female flowers of the same age.
Of the other or monoicous sub-group of polygamous plants, or those which bear
hermaphrodite, male and female flowers on the same individual, the common Maple
(Acer campestre) offers a good instance; but Lecoq states that some trees are
truly dioecious, and this shows how easily one state passes into another.
(Introduction/19. 'Geographie Botanique' tome 5 page 367.)
A considerable number of plants generally ranked as polygamous exist under only
two forms, namely, as hermaphrodites and females; and these may be called gyno-
dioecious, of which the common Thyme offers a good example. In my seventh
chapter I shall give some observations on plants of this nature. Other species,
for instance several kinds of Atriplex, bear on the same plant hermaphrodite and
female flowers; and these might be called gyno-monoecious, if a name were
desirable for them.
Again there are plants which produce hermaphrodite and male flowers on the same
individual, for instance, some species of Galium, Veratrum, etc.; and these
might be called andro-monoecious.
Pages:
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41