Fio. 4. B. euneistipula. 4 a. Stem, ventral view, X 30. 4 b. Leaf-cell, X 400. 4 c. 

 Underleaf . 4 d. Female bracts, X 30. 4 e. Upper portion of a female bract of the inter- 

 mediate series, X 260. 4 f. Portion of the perianth-mouth. 



