ADVENTITIOUS FLOWERS. 269 



appearance of the structure, that we have to do in this 

 <;ase with a spikelet arising adventitiously on the upper 

 surface of the tip of the inferior pale (bract of the 

 flower, according to the view here held). At any rate 

 this is the view which has been generally adopted. 

 As Penzig points out, however, Easpail observed the 

 separation of the awn-bearing midrib from the inferior 

 pale (in several grasses) as a short floriferous axis. 

 Hence the anomaly may merely consist in fusion of an 

 axillary product with its subtending bract. 





y" 



I'iG. 155. — Hordeitm trifurcatum (Nepaul Barley). Three spikelets 

 showjng the trilobed apex of outer palea of each (op). Diagram 

 showing reflexed raohilla (r) within the hood bearing two adven- 

 titious florets (a/). (After Masters.) 



Above are cited three cases of adventitious flowers 

 occurring on foliar organs, viz., on carpels and a bract. 



There must now be mentioned two instances of their 

 ■occurrence on the floral axis. The first was in a 

 carnation-flower, sent by the editor of the ' Gardeners' 

 Chronicle,' which had proliferated into a second flower 

 whose calyx consisted of the carpels of the first; the 

 petals of the primary flower, which was .double, were 

 replaced by numbers of very small flowers consisting 

 entirely of petaloid organs ; these flowers^ "not being 

 axillary, must be regarded as adventitious. -'< 



Some hypertrophied female catkins of the cracfe- 



