T h e h ab it is similar to th a t o f Davallia polypodioides.
Rhizoma stoutish and c reeping, an d covered w ith silky whitish
hairs.
T h e fertile fronds are erect, an d curve only towards the
apex.
F o r fronds I am in d eb ted to M r. Sim, o f F o o t’s Cray.
Mr. R. Sim, o f F o o t’s Cray, is th e only N u rse rym an who
possesses this F e rn .
T h e illustration is from Mr. Sim’s frond.
GENUS IV.
T H Y R S O P T E R IS . K u n z e .
F r o n d s decompound-multlfid, w ith th e fertile po rtio n contra
c ted and paniculate. Veins p in n a te , with free venules, th e
apices forming soriferous pedicels. A special indusium.
A solitary species, from Ju a n F e rnandez.
. I
c;!
