274 GLOSSARY 



I 



Tomentum. A felted mass of radicles that sometimes cov- 

 ers a considerable part of the stem. ^ 



Tripinnate. Three times pinnate. When the bipinnate 1 



branches are again branched. (Plate II, Fig. 4.) 



Undulate. Waved up and down, same as wavy. 



Vegetative. Growing in some way other than from the 

 spore. 



Wavy. Same as undulate. In reference to leaves, with the 

 surface not flat and smooth, but with more or less regular 

 depressions. (See Dicranum undulatwn, p. 93, and 

 Catharinaea uftdulata, p. 157.) 



Whorled. In reference to branches, arranged in a circle 

 about the stem. (See Fhilonotis, p. 145.) 



