79 * 
¥) Vegetable Syftem of a feries of experiments 
aud obfervations > Lond. i759* P* *44» 
The 
fc66ne Sßerf t)on *) Mwt in 
«ems $»n i|^,,fo «nangeneDm 
fe^n, bttöienise, wag ev »oti einer 2irt beg Polypo- 
dium , bte er Various Leaf d» Polypodium nennet/ 
faget, mit feinen eignen «Borten anaufüDren. 
feed-veffel is of a roundifh form, 
whitifh, and its circumference is wound about 
with a jointed ring. Each is fupported by a long, 
delicate, tranfparent filament, by way of footftalk. 
tvich is terminated by the ring, and all thefe foot- 
ftalk rife from the under part of the original pa* 
pilla. The fubftance of the central part of each 
feed-veffel is fprungy, üke the open head of 
the papilla, ' 
The ring is membfancous , as the verge of 
the leaf is, anel its joints are brown. Therefore 
the conftruction is this: 
