6 4 



MOSSES WITH A HAND-LENS 



7 



Plicate ; folded in pleats or furrows; e. g., 

 leaves of Camptothecium. (Fig. 14) 

 Plica % folds of a plicate leaf. 

 Pluriseriate, many ranked; i. e., as applied 

 to leaves arranged in several rows along the stem. 

 Porose, see pitted, with which Fig. 13 be- 

 longs. 



Primordial utricle, "the first layer depos- 

 ited within a cell." As applied to the cells of the 

 moss leaf it refers to the layer of protoplasm lying 

 next the cell wall, which often is very conspicuous 

 when dried and shrunken away from the cell wall. 

 As a character for use in the identification of 

 species it is valueless, because its appearance is 

 due to circumstances not well understood, and is 

 frequently present in some specimens and lacking 

 in others of the same species. 



Proseiichymatous, (cells) with pointed ends 

 dovetailing into each other. (Fig. 15.) 



Quadrate, (cells) square or nearly so. 

 (Fig. 1.) 



Rosulate, in the form of a rosette. 

 Rugose, wrinkled (in the case of leaves it is 

 usually applied to transverse wrinkles); e. g., 

 leaves of Hypnum rugosum. 



Secund, twisted or turned to one side. (Fig. 

 16.) E g , leaves of many Hypnums. Not neces- 

 sarily curved as in the figure. 

 *® Striate, marked with strise or slight furrows. 



Sulcate, deeply furrowed with longitudiual channels. As 

 applied to leaves, both striate and sulcate really refer to the 

 fold whose concave surface is on the inner or ventral surface 

 of the leaf. 



Tubulose, see caftaliculate. 



Uncinate, hooked, curved back at point. (Fig. 16.) 

 Undulate, with an alternately concave and convex 

 margin, wavy; e. g., leaves of Dicranum undulatum. 

 Ventral surface, the surface of a leaf next the stem. 

 Vermicular, narrow and curved like a little worm; 

 applied to leaf cells. 



Verruculous or verrucose, covered with wart-like 

 prominences. (Fig. 17.) 



