A NATURALIST'S WANDERINGS
tains any nectar. The column, embraced by the labellum, is massive, expanding into a stigma eleven millimetres broad, secreting an abundance of viscid matter, crowned with the anther and its pollen, wbose caudieles, composed of pollen
FIG. 1.a PH A JUS B LOI El, SHOWING ANTHER WITH POLUNIA REMOVED; C, STIGMA ; F, BASE OF ANTHER ; G, ROSTELLUM.
[The following figures are all slightly diagrammatic.']
FIG. 2.a PHAJUS BLUMET, SHOWING THE rOLLINIA AVALANCHED DOWNWARDS, CARRYING WITH THEM THE ROSTELLUM, G; A, ANTHER-CAP; P, SWOLLEN POLLINIA ; C, STIGMA ; E, TIP OF CAA DICLES OF POLLINIA.
grains, protrude their tips from beneath the anther-cap. I examined more than one hundred and fifty flowers of P. Blumei, but I did not find one that was not, or could be otherwise than, self-fertilised. Its essential organs exist in two forms, slightly but interestingly different.
FIG. 3.a BUD OF PHAJUS BLUMEI, SHOWING POLLINIA IN ERECT POSITION; A, ANTHER-CAP ; B, POLLINIA ; A , STIGMA ; D, MEDIAN RIDGE.
FIG. 4.a LONGITUDINAL SECTION OF COLUMN OF PHAJUS BLU3IEI (SIDE
view); a, p, c, d, as in fig. 3;
I, BOUNDARY OF STIGMA.
Flowers of the first form have, arching over the deep and covered stigma, a well-developed tongue-shaped projection or rostellum, on which lie the caudicles of the pollinia, which have no viscid disk (Fig. 1). On each side, the rostellum leaves between itself and the external walls of the column a