( J . Mackaii.) 
BRITISH JUNGERMANNIJE. 
REFERENCES TO THE PLATE. 
PIG. 
1. J. Mackaii, natural size. 
2. Female plant, magnified 6 
3. Male plant 6 
4. Leaf and stipule, with a portion of the stem and roots 3 
5. Perigonial leaves 3 
6. Fertile extremity of a branch, shewing the under side of the calyx and ) 
perichcetial leaves ) ^ 
7. Germen .■ 2 
8. Calyptra 2 
9. Calyx, with a capsule after the discharge of the seeds 2 
10. Spiral filaments, enclosed within their pellucid tube 1 
11. Seeds „ 1 
