xii
CONTENTS.
ARETHUSEÆ.
Cephalanthera grandiflora; rostellum aborted; early penetration of the pollen-tubes; case of imperfect self-fertilisation; cross-fertilisation effected by insects which gnaw the labellum—Cephalanthera ensifolia—Pogonia—Pterostylis and other Australian orchids with the labellum sensitive to a touch—Vanilla—Sobralia
Pages 80–92
NEOTTEÆ.
Epipactis palustris; curious shape of the labellum and its importance in the fructification of the flower—other species of Epipactis—Epipogium—Goodyera repens—Spiranthes autumnalis; perfect adaptation by which the pollen of a younger flower is carried to the stigma of an older flower on another plant—Listera ovata; sensitiveness of the rostellum; explosion of viscid matter; action of insects; perfect adaptation of the several organs—Listera cordata—Neottia nidus-avis; its fertilisation effected in the same manner as in Listera—Thelymitra, self-fertile
93–127
MALAXEÆ AND EPIDENDREÆ.
Malaxis paludosa—Masdevallia, curious closed flowers—Bolbophyllum, labellum kept in constant movement by every breath of air—Dendrobium, contrivance for self-fertilisation—Cattleya, simple manner of fertilisation—Epidendrum—Self-fertile Epidendreæ
128–148
