F o r fronds my tlianks are due to ]\Ir. J . Smith, Cura to r of
th e Royal Gardens, K ew ; and to jSIr. Sim, of F o o t’s Cray,
I t may be p ro cu re d of Slessrs. Sim, of F o o t’s Cray;" and
Rollisson, of Tooting.
T h e illustration is from jMr. Smith’s frond.
GENUS X.
B L E C nX U M . L ix xæ d s .
F ronds either simple, pinnatifid, or pinnate. Piunæ adherent,
or a rticulated with the rachis. Veins forked, those of the fertile
fronds combined near their base at the poin t of forking by a
transverse vein, and forming the sporangiferous receptacle, mostly
situated n ear the midrib.
F e rtile fronds n o t contracted.
Sori linear, mostly continuons, y e t sometimes in te rru p ted .
A ll natives of warm climates, and easily cultivated.
L en g th of fronds from six inches to six feet.
T h e re is no B ritish example.
P re sl, in his “ T entamen P te rid o g rap h iæ ,” gives the following:—
Blechuum lanceola
“ trifoliatum
“ unilaterale
“ glandulosum
“ pohlianum
“ asplenioides
“ trian g u la re
“ distans
“ longifolium
“ anriculatum
“ intcgervimum
“ procerum
“ scandens
“ hrasiliense
Blechnum radiatum
“ finlaysonianum
“ cartilagineum
“ caudatum
“ meridionale
“ australe
“ rigidum
“ occident'.de
“ ciliatuin
“ stramineura
“ orientale
“ latifoliuui
“ ambiguum
“ fontanesiamun
Blechnum trilobum
“ hastatum
“ remotum
“ gracile
“ silicifolium
“ angustifolium
“ se rrulatum
“ fraxineum
“ appendiculatum
“ elongatum
“ pectinatum
“ striatum
“ volubile
“ flabellatum
Fe e , in his “ Genres de la Famille des Polypodiacees,” en u merates
the following:—
Lanceola, Swartz.
Unila té ra le , Willdenouu
llc tc ro c av p o n . Fee.
v o l.. IV.
A.splcnioides, Swartz.
Glandulosum, L in i;
^Meridionale, Presl.
i i ; S
iM