PLATE 98 



SPURIOUS HOREHOUND (Marrubium peregrinum, L.) 



i. Surface view of the leaf epidermis. 2. View of the petal epidermis. 

 3. Non-glandular multicellular branched hair from the stem, leaves, or flowers 

 with a few of the lower branches broken. 4. Broken pieces and branches from 

 the compound hairs scattered throughout the field. 5. Unicellular glandular 

 hair with a two-celled stalk. 6. Under-surface view of an eight-celled gland- 

 ular hair. 7. Side view of eight-celled glandular hair. 8. Long, pointed, 

 unicellular, non-glandular hair from the corolla, the wall irregularly thickened 

 near the apex. 9. Fibres. 10. Pollen grains, n. Conducting cells of leaf. 



