MOSSES WITH A HAND-LENS 



193 



Inflated, applied to the alar cells of leaves when enlarged 

 much beyond the size of the neighboring cells. (Fig. 19.) 



Involucre, the circle of single or united bracts surrounding 

 the perianth in the Hepatics. (See Marchantia.) 



InUorescence, often applied to the clusters of 

 reproductive organs. 



lulaceous, smooth, slender and cylindric ; like 

 a catkin or a worm. 



Lamellae, thin sheets or plates of tissue ; e. g., 

 the plates arising from the costa of the hair-caps 

 and their allies. (Fig. 20.) 

 Lamellate, having lamella. 

 Lamina, the blade or expanded part of the 

 Fig. 19. ]g^£ ^g distinct from the costa. 

 Lanceolate, long and narrow, but widest at base like the head 

 of a lance. (Fig. 30.) 



Leptodermous, thin-coated; applied to 

 capsules when soft and pliable. 

 Lid. See operculum. 

 Limb, the upper part of a leaf as dis- 

 tinct from the leaf base. 



Linear, long and very narrow and of 

 the same width at both ends, like a line. 



Lingulate, tongue-shaped ; e. g., the 

 leaves of Rhacomitrium aciculare. 



Lobe, the upper and usually larger lobe 

 of the complicate-bilobed leaves of Hepatics. 

 Lobule, the under and usually smaller lobe of the com- 

 plicate-bilobed leaves of Hepatics. (See Radula.) 



Mamillate or mammillar (lid of the capsule), 

 convex with a short projection in the center. 

 (Fig. 21.) 



Margined. See bordered. 

 Mitriform (calyptra), cleft on two or more sides, 

 and symmetrical. (See figure of Bruchia p. 36.) 



Monoicous or monoecious, having male and 

 female organs on the same plant. 

 Muticous, not pointed. 



Neck (of the capsule), the lowest part just 

 above the point where it joins the seta. See, 

 Fig. 21. also, collum. 



Fig 20. 



