EPIDERMIS. 



59 



(Fig. 2i) as examples of the leading forms, and for further information refer to the 

 literature above cited, or to any handful of plants. 



Pir ,,_E«amDles of forms of Hairs. ^ transverse section through a young leaf of Plech-antlius fruticosus. 



D Cheiranlhus cheiri; under-surface of leaf, longitudinal section. Explanation ■»"■='«' CM' ^ Folypoa-um 

 Ungiaj under-surfaceof leaf. SteUatehair, a, in surface view (90); {transverse section (.50). 



