PLATE XXVII.— TANGENTIAL SECTIONS OF TRANSVERSE RESIN DUCTS. 



.l-r, Pi.vu.s TELA. D aud li, P. i'alusikis. F, P. echisata. G, p. HISTEUOPHYLLA c. <h , resii 

 transverse tiacheids ; jj., parenchyma. 

 Maguifloatiquof originals, '^^o; of illustrations, ^p. 



