GLOSSARY OF TEEMS USED 201 



Fertilising organ, see Antheridium. 



Foliose, leaf-bearing ; of certain liverworts which bear leaves, 



as distinguished from the frondose plants. 

 Frondose, frond-like, i.e. taking the form of a flat green plate ; 



of certain liverworts. 

 Fruit-bearing organ, see Archegonium. 



- GemmcB (Latin, gemma, a bud), small bud-like bodies on the 



plant, from which fresh plants may spring (pp. 86, 117, 137). 

 Germ-cell, see Oosphere. 



- Guard-cells, the crescent-like cells which surround the pores, 



(or stomata) on the capsules of certain mosses (p. 55). 



Immersed, covered ; of the capsule, when it is covered by the 

 surrounding (perichsetial) leaves (p. 54) ; of the stomata, 

 when the guard-cells are situate below the surface of the 

 capsule wall (p. 56). 



Inclined, of the capsule, when it is slightly bent at an angle to 

 the fruit-stalk. 



- Involute, rolled inwards ; of the margin of certain leaves (p. 18). 



Lamina, the blade of the leaf, as distinguished from the nerve. 

 Lid, see Operculum. 



Mitriform, shaped like a bishop's mitre ; of the veil (or calyptra). 

 ~ Monoicous, the equivalent of Autoicous. 



Neck, the lower end of the capsule, where it joins the stalk. 



Nerve, the central strand running up the middle of the leaf- 

 blade of most mosses, corresponding to the mid-rib in the 

 leaf of a " flowering plant." 



Oosphere, the special cell in the base of the fruit-bearing organ 

 from which, when fertilised, the capsule is developed (p. 38). 



- Operculum, the lid of the moss capsule (p. 60). 



