Fig. 571: MyriophyUum pinnatum: a, distal end of branch, x i/^; b, central section 

 of branch, x ^i;; c, leaf, x 1; d, variation in leaves, x 1; e, bracteole, x 10; f, bud, x 25; 

 g, male flower, x 13; h, perfect flower, x 13; i, face view of single mericarp, x 25. 

 (Courtesy of R. K. Godfrey). 



