Production of gemmæ in place of spores.—An instance of this is recorded by Dr. Montagne[171] in the case of a moss, Encamptodon perichætialis, in which, in the interior of the capsule, in lieu of spores numerous minute gemmæ of the same nature as those in the cup of Marchantia were seen.
Formation of flowers on leaves.—It is very doubtful whether a flower-bud has ever been found actually on a leaf. Mere adhesion of the pedicels of the leaf, such as happens in Ruscus, in Helwingia, Erythrochiton hypophyllanthus, and a few other plants, is, of course, not really to be considered in the light of an actual growth from the leaf, and it is very doubtful in the present state of our knowledge whether the case of the Nepaul barley should find a place here, but for convenience sake it is placed in this section, as it is uncertain at present where it properly belongs.
Fig. 87.—Three-lobed end of outer palea of Nepaul barley bearing supplementary florets.
Fig. 88.—Three spikelets of Nepaul barley.
