262. THE FERTILISATION OF FLOWERS. [PART Il 
= 
(16) E. livida, L., both sucking, abundant; (17) Syrphus ribesii, L., tpl 
D. Lepidoptera—Sphinges : (18) Ino statices, L,, s. See also No. 590, IL @ and ; 
No. 609. 
Epilobium Fleischeri, Hochst. (#. denticulatum, Ulender), 1 
visited by numerous humble-bees. It is sometimes homogam a 
sometimes proterandrous, sometimes proterogynous, and the short 
style always occupies the same position below the stamens. Cross 
fertilisation is generally insured, but self-fertilisation is not quite 
excluded (No. 609, fig. 82). 
Insect-visitors of #. Dodonwi, Vill., #. origanifoliwm, Lam 
and FL. montanum, L. (E. collinum, Grek are enumerated in Di 
Alpenblumen. 
167. EPILOBIUM PARVIFLORUM, Schreber.—In regard to the | 
power of attracting insects and the possibility of self-fertilisation, - 
two species of the same genus could scarcely stand in greater 
jt nt ac ee ee ee 
He, 
Fic. 86.—Epilobium parvijlorum, Schreber. 
Flower, in side view, the greater part of the calyx and ovary and the two anterior petals havit 
been removed, 
st, stigma; a*, longer stamens; a2, shorter ditto. 
contrast to each other than Hpilobium parviflorum and £. ang 
tifolium ; for the solitary, pale-red flowers of the former species < 
easily overlooked even by the practised eye, and generally expo: se 
their honey to no purpose, receiving insect-visits only one 
Accordingly self-fertilisation is a regular occurrence. ; 
The honey is secreted by the upper surface of the ovary 
lodged round the base of the style ; it is sheltered from rain not 
so much by the stamens as by a ring of hairs projecting inwe ds 
from the petals. Stamens and stigmas ripen together. The for 
