228 Plants and their Ways in South Africa 



just detect in the tops of some of the stalks little bodies, sur- 



Fig. 20I. — Section of Pellia epiphvlla through an involucre. R, rhizoids ; 

 T, I, involucre ; AA, developing archegonia (magnified). (From Evans* ' Inter- 

 mediate Text Book of Botany ".) 



rounded by a rosette ol leaves. These correspond to the 

 antheridia of the liverwort. 



Fig. 202. — Pellia epiphylla. A liverwort with impergate sporangia. T, 

 lobe ; R, rhizoids ; F, fruits enclosed in calyptra ; C, central slightly thicker 

 layer ; C, C, capsules ; V, capsule open ; CF, collapse of seta after dispersal of 

 spores. (Evans' " Intermediate Botany".) 



The egg-cell pockets, archegonia, usually borne on 



