Perigynous, inserted on the calyx, that is, with the lower part of filament adnate to the calyx-tube.

Epigynous, borne apparently on the top of the ovary; all which is explained in Fig. [270]-[274].

Fig. 284. Style of a Lady's Slipper (Cypripedium), and stamens united with it; a, a, the anthers of the two good stamens; st, an abortive stamen, what should be its anther changed into a petal-like body; stig, the stigma.

Gynandrous is another term relating to insertion of rarer occurrence, that is, where the stamens are inserted on (in other words, adnate to) the style, as in Lady's Slipper (Fig. [284]), and in the Orchis family generally.

[283.] In Relation to each Other, stamens are more commonly

Distinct, that is, without any union with each other. But when united, the following technical terms of long use indicate their modes of mutual connection:—

Monadelphous (from two Greek words, meaning "in one brotherhood"), when united by their filaments into one set, usually into a ring or cup below, or into a tube, as in the Mallow Family (Fig. [286]), the Passion-flower (Fig. [260]), the Lupine (Fig. [287]), and in Lobelia (Fig. [285]).