174 



ALTERATION OF POSITION. 



this is recorded by Dr. Montagne^ in the case of a 

 moss, Encamptodon perichwtlaUsy in which, in the in- 

 terior of the capsule, in lieu of spores numerous minute 

 gemmae 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 Buscus, in Hehvingia, Erythrochito7i 

 hypophijUantlmSi and a few other plants, is, of course, 

 not really to be considered in the hght 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 con- 

 venience sake it is placed in this section, as it is un- 

 certain at present where it properly belongs. 



This curious plant has been described and figured 



Fig. 87. Three-lobed end of 

 outer palea of Nepaul barley 

 bearing supplementary florets. 



Fio. 88. Three spikelets of 

 Nepaul barley. 



' Ann. Nat. Hist.,' 1845, vol. xvi, p. 355. 



