38 ART. 1:2.— K. YENDO. 



with the lateral veins rumiiug into the segments. The basal part 

 of each leaf is more or less constricted to form a short cylindrical 

 petiole. The leaves are either directly inserted in the "Kurztrieb" 

 disposed in the manner explained above, or they are alternately 

 pinnately arranged along the margins of subterete, filiform inde- 

 finite branchlets. One or more of the lateral segments of a leaf 

 are often transformed into vesicles. 



Well grown lateral branches often measure 6.5 feet in length. 

 The stems are terete, compressed with round edges. Each gives 

 off minor ramules from its edges in a distichous, alternate and 

 pinnate manner. These ramules are simple or decompound and 

 have vesicles at the lower part and receptacles at the upper ; in 

 a younger ramule, the vesicles only. Both vesicles and receptacles 

 are alternatejy pinnately arranged. 



Vesicles vary in their form according to their position in 

 a frond. Those which are transformed from the lateral segments 

 of a leaf, and usually found at the basal regions of a frond, are 

 ellipsoidal, G-8mm. in major axis and 4-5 mm. in minor axis, 

 slightly narrowed downwards, each having a short stalk, and 

 coronated with a narrow, linear, costated leaflet at the apex. As 

 we trace them upwards, they become much elongated, diminishing 

 in diameter and finally becoming spindle-shape. Such vesicles 

 have stalks often as long as their length and the corona frequently 

 long and setaceous. 



Keceptacles arc racemosely arranged at the upjier part of a 

 ramulet, the terminal one being the largest. They are elongated 

 conical or cylindrical, attenuated above and abruptly ending at 

 the base in a comparatively long filiform stalk. The receptacles 

 uf both sexes have the same appearaifce, except that the female 

 receptacles mostly have a darker colour. 



