GLOSSARY xxi 



Filament, the stalk of the anther. 



Follicle, a several- seeded pod-like fruit, which splits when ripe down 

 one side only, as in Larkspur or Columbine. 



Geotropic (p. 45), affected by the stimulus of gravity. 



Glabrous, not hairy. 



Glume (p. 431), the bract of a grass flower. 



Gynodioecious, having hermaphrodite and female flowers on different 



plants. 

 Gynomoncecious, having hermaphrodite and female flowers on the same 



plant. 



Heterogamous, having male, female, and hermaphrodite flowers, or any 



two of them united in one head, as in Compositse. 

 Heteromorphous, having more than one form of flower. 

 Heterostyly, when two or more forms of flowers are characterised by 



styles of different lengths. 

 Homogamous, of flowers in which stigmas and anthers are functional at 



the same time. 

 Hypogynous, arising below the ovary on the floral axis. 



Incumbent (p. 76), of the radicle when lying parallel with the faces of 

 the cotyledons. 



Indehiscent, not opening when mature. 



Involucre, an association of bracts round the base of a flower or in- 

 florescence. 



Lanceolate, shaped like the head of a lance. 



Lenticel (p. 219), a small area of loosely arranged cork cells allowing the 



passage of air. 

 Linear, narrow, with parallel sides, like a grass leaf. 

 Loculicidal dehiscence, of a capsule, splitting down the middle line of 



each carpel. 



Mericarps (p. 17), one-seeded portions of a compound fruit which 

 separate when ripe. 



Micropyle, the aperture between the ovule-integuments through which 

 the pollen tube reaches the embryo-sac. 



Monoecious, having stamens and pistil in separate flowers, but on the 

 same plant. 



Monocotyledon, having an embryo with a single seed-leaf or coty- 

 ledon. 



