68 Scientific Intelligence. 
cious, for the case of those plants which produce their two kinds 
of blossoms as hermaphrodites and females, either on distinct indi- 
viduals or on the same plant. ‘So, likewise, the term andro-mone- 
cious and andro-diecious for the case of hermaphrodite and male 
flowers, on the same or on separate individuals. As to andro-dice- 
ism, Mr. Darwin ‘remarks that, after making enquiries from sev- 
eral ‘bouaAintie I can hear of no such cases. The last summer 
brought one such case to light in our Cambridge Botanic Garden, 
perhaps exceptionally, but it raises the inquiry whether Diospyrus 
Virgiiana, our Persimmon tree, may not be of this character. A 
solitary female tree here, and wi ith no male tree in the town, sets 
fruit more or pith n most seasons ; ; but the persimmons are under 
sized and seedless. This year it was loaded with full-sized fruit; 
well furnished with seeds, the latter with a good embryo.: The 
female gp always bear stamens; but these are generally 
thought to be impotent; perhaps they besten produce some 
pollen ; they doubtless did so upon this oc 
. 
Darwin asserts, it would be Prenat and conduce to 
ric i 
and 
females co-exist. This ur in two ways, and possibly in 
three. The English Ash, as he remarks, is tricecious, or has the 
three kinds on as many individual trees ; while some Maples bear 
all three on the same tre 
If we rightly read a sheaiivit on p.10, it implies that proterandry 
and en are known to occu r only i in “some few hermaphro- 
dite plants.” But it can hardly mean that, cases of it being com- 
mon and abvions s in many natural orders 
The first chapter of this volume is dev oted to Primula and its 
allies; the second, to hybrid Primulas, mainly to the Oxlip, which 
is shown to bea spontaneous hybrid between the Cowslip eit: the 
Prim A note is added on some wild hybrid Verbascums, spe- 
cially tho those babtbeen Verbaseum Thapsus and V. Liyehoiteid which 
cross with the greatest ficility, and produce a series of forms 
which almost connect these two widely distinct species 
lly 
hybrids of the first generation almost wholly self-sterile. 
ch cases as this and that of the Oxlip, which was 
thought to prove that the ee and the Primrose were 
varieties of one speci “ show, as Ir. Darwin remarks, “ that bot- 
ben Gini particulart those of some s ax of 
stonia, Mitchella, and other Rubia “The fourth chapter 
discusses the t fl wers of the same ere ah stars 
