276 GLOSSARY 



Tubular. Shaped like a tube or hol- 

 low cylinder. 



Tufted (stems). Short and set close 

 together. 



Type. The specimen on which the 

 first description of a species is 

 based. 



Type locality. The exact station at 

 which a type was collected. 



Umbel. A flower-cluster in which 

 the pedicels all spring from the 

 end of a common peduncle; 

 p. 13. 



Unisexual. Either staminate or pis- 

 tillate only. 



Valve. One of the pieces into which 



a capsule splits. 

 Veins. Branched threads of tissues. 

 Viscid. Glutinous; sticky. 



Whorl. An arrangement (of leaves, 



etc.) in a circle around the 



stem; p. 8. 

 Wing. Any thin border; the lateral 



petals in Leguminosae. 

 Woolly. Clothed with long matted 



hairs. 



