THE BRYOPHYTES 



273 



Fig. 108. Mnium undulatum, a Moss. 



A, female plant with four spore-capsules s ; B, male plant with 

 antheridia at a. 



352. Gross Structure of the Complete Moss-Plant. — Procure a leafy 

 plant with a capsule growing from it and note : 

 (a) The stem. Is it branched or unbranched ? 

 (J) The leaves. How arranged? 



(c) Tlie 7-hizoids. 



(d) The sporophyte, or spore-bearing plant, with a slender stalk 

 bearing the capsule. Draw the leafy plant with the sporophyte x 2. 



