Page:Darwin - The various contrivances by which orchids are fertilized by insects (1877).djvu/219

especially on the sides, and its edge is crenated. The other petals and sepals are all reflexed, and are not so much spotted as in the Catasetum. The bract at the base of the ovarium is much larger. The whole column,

Fig. 31.

B. Myanthus barbatus.

sep.a. anther.

sep.an. antennæ.

sep.l. labellum.

sep.p. pollen-mass, rudimentary.

sep.s. stigmatic cleft.

sep. two lower sepals.

A. Monachanthus viridis.

A. Side view of Monachanthus viridis in its natural position. (The shading in both drawings has been added from Mr. Reiss' drawing in the 'Linnean Transactions.')

B. Side view of Myanthus barbatus in its natural position.

especially the filament and the spike-like anther, are much shorter; and the rostellum is much less protuberant. The antennæ are entirely absent, and the pollen-masses are rudimentary. These are interesting