FREAKS OF BULBOUS AND TUBEROUS PLANTS 



Analogous to this case of the Arum Lily is that of a Tulip, shown 

 on Fig. 28, in which the leaf, instead of being a flat expansion 

 remained tubular, and formed a kind of extinguisher over the flower. 

 This case rather looks as if the flower was intended to be self- 

 fertilised by being imprisoned in the tubular leaf. 



Fig. 28. — Tulip, showing flower encased in 

 green tubular eEtinguishei-like leaf. 



Fia. 29 — Gloxinia, with secondary corolla 

 lobes. 



Sometimes, as shown in the sketch of Gloxinia (Fig. 29), besides 

 the sepals and petals proper, an extra whorl of organs appear. This 

 is a case of proliferation somewhat resembling the duplication of 

 corollas seen in the well-known biennial Canterbury Bell {Campanula 

 Medium Oalycanthema), and the perennial G. persici/olia, forms of the 

 Columbine (Aquilegia vulgaris), etc. 



In this connection mention might also be made of the Persian 

 Cyclamen (C. latifolium), in the flowers of which "doubling" has 

 taken place, and also in some forms of which peculiar outgrowths 

 or crests have been developed on the surface of the petals. These 

 are ornamental in many cases, and the characters have become 

 fixed. 



The tuberous Begonias have also exhibited this character during 



recent years. Not only have the flowers become very "double" 



39 



