I , . x
L
. ’I ,
h ' '
' , r l 1 ' I 1
I, I I
I.
, ' S
' : r '
' r ¥
r i M
■ I *
’ H
i
' t t
I
iI i if' I i l
H a b .— Shaded banks of rivulets in forests near Mobile, Alabama,
C. M o h r . Walls in the City of Charleston, South Carolina, Professor
L ew is R. G ib b e s . China, Japan and Natal Colony.
D e s c r i p t i o n : — l a many respects this fern is so like
Pteris Crctica that a full description is not needed. It has the
same habit of growth, and fronds of about the same stature.
The pinnæ and pinnules of the sterile fronds are shorter and
broader than in the fertile. The terminal pinna is commonly
longer than all the frond beside. The terminal segments of
the lower pinnæ are also much elongated. The pinnæ are
so far decurrent on the rachis that the latter is winged from
the top nearly or quite to the base. The sterile pinnæ are
sharply and irregularly serrate ; the fertile ones serrate only
towards their apices. The pinnæ have not the narrow cartilaginous
edge seen in Pteris Crética.
Mr. Mohr thinks the plant native in the station he discovered,
but as it is otherwise known only in the far East,
it is possible at least, that it may be introduced. It is well
established in Charleston.
Plate LX X V III .— Fig. 5-7. The drawing Is taken from a plant
kindly furnished by Professor Gibbes. The details are a part of a
pinna and a , spore.
ll J
1 ! i ' !
1' Ml