The mite, f A ca ru s te lla riu s ,) or red spider, and A . holosericeus
are both very destructive, giving the leaves a scorched appearance.
Besides these, a large green caterpillar is so rap id in its
work of destruction, th a t if not removed, the fronds are soon
all eaten u p ; whilst several small beetles add th e ir ravages to
the above pests of our hothouses, greenhouses, and gardens.
Glabrous; fronds oblong-pinnate, the pinnie being alternate,
and attached by short petioles. Lanceolate, acuminate, coriaceous;
the sterile se rrated fronds being broadest.
Stipes and rachis covered with ferruginous hairs. Rhizoma
creeping.
T h e colour of the frond a b rig h t olive g reen, and shining
both on th e up p e r and under side; wedge-shaped at the base.
L en g th of frond twelve inches.
Sori linear, continuous, extending along b oth margins of the
frond to th e apex.
A stove Lern.
An inhabitant of Tropical America, the W e s t In d ian Islands,
and Jamaica.
I am indeb ted to Mr. H en derson, of W en tw o rth , for a plan t
and fronds of this species.
N o t common in cultivation; it does not appear to be included
in any of the E n g lish N u rse rym en ’s Catalogues. I t is in that
of Messrs. Booth and Son, of Hamburg.
The illustration is from a plant in my own collection.
Portion of mature Frond, under side.
ADIANTUM MACROPHYLLUM.
S war tz. B r o w n e . S l o a n e . H o oker a n d G e e v il l e . F e e .
H um bo ld t a n d B o n p l a n d . P r e s l .
W illdenoav. j . S m it h . K u n z e . M oore a n d H o u l s t o n .
PLATE IV.— B. VOL. HI.
Adiantum microphyllum,
“ striatum,
K a u l f u s s .
ScHKunii.
Adiantum—Dry. Macrophyllum—Long-leaved.
To the uninitiated, the A d ia n tum macrophyllum may very
readily be mistaken for a P te ris. The g re a t length of the
sori in comparison with the majority of the A d ia n tum s , together
with the striking difference in the form of the frond itself,
makes this F e rn a very distinct species.
The fronds are glabrous, pinnate, and the pinn® are large,
sub-sessile, acutely oblong, lobed and slightly dentate; sterile