DANJSA. 



109 



readily distinguished from all others by the knotted nature of the frond- stalks, 

 which sometimes show as many as five nodes (knots) disposed on their length 



Fig. 23. Fertile and Barren Fronds of Danasa elliptica 



(i nat. size). 



— usually about 1ft. The leafy portion of the barren fronds, l|ft. to 2ft. 

 long and Sin. to 12in. broad, is composed of from six to nine pairs of sessile 

 pinnae (stalkless leaflets), of a somewhat fleshy and leathery texture, 4in, to 



