APPENDIX A. 



TYPES OF FLORAL CONSTRUCTION IN ANGIOSPERMS. 



A DESCRIPTION of a few types of Flower, together with notes on the 

 Natural Families to which the Plants that bear them belong, are 

 here added, so as to illustrate more fully the methods of floral con- 

 struction described in Chapter XIII. They have been selected partly 

 because they are common Flowering Plants easily accessible to all ; 

 partly because they represent characteristic features of the Natural 

 Families whose products are of importance to Man ; partly also because 

 of their biological interest in relation to the production and dispersal 

 of seeds. A study of such examples will give some idea of the various 

 forms which the flowering shoot may assume. A few added notes 

 will help to explain in the several examples the biological advantages 

 which follow from the form adopted. 



CONSPECTUS OF THE PLANTS DESCRIBED. 

 MONOCOTYLEDONEAE. 



ORDER. 

 LiLIALES - 



Orchidales 

 Glumales - 



FAMILY. 



rLiliaceae 

 J AmarylHdaceae 



[iridaceae 



- Orchidaceae 

 rjuncaceae - 



- - Cyperaceae - 

 I Gramineae - 



examples. 



- (l) Tulip, (2) Squill. 



- (3) Snowdrop, (4) Pheasant's 



Eye. 



- (5) Iris, (6) Crocus. 



- (7) Orchis. 



- (8) Wood-Rush. 



- (9) Cotton-Grass, (10) Sedge. 



- (11) Rye- Grass. 



DICOTYLEDONEAE. 

 (Dicotyledoneae — Choripetalae). 



Salicales - - Salicaceae - - (i2)-Goat Willow. ^ 



Curvembryeae - Caryophyllaceae - (13) Ragged Robin, (14) 



Campion. 



492 



