i
ASPIDIUM FILIX-MAS, V a e . W i l l i s o n i i .
L o w e .
P L A T E X L A 'I I I . . B .
Lastrea filix-mas, var. Willisonii, S t a n s f i e l d , M S .
SLioId-Fern. Filix -mas— Malo Fern. W illi sonii— IS amoA
after Air. Willison, th e discoverer.
I n t h e S e c t io n L a s t r e a o p A u t h o r s .
T h i s singular variety of the British Male Fe rn was discovered,
in 1859, near Whitby, Yorkshire, by Mr. Willison.
The fronds are narrow and attenuated, the pinnæ are also
narrow and prolonged. Pinnules short, somewhat eroded, and
decurrent.
Length of frond from twelve to twenty-four inches.
My thanks are due to Mr. C. Monkman, of Malton, for a
frond of this variety.
