
■ R I F :i A G A. P n I QN O :
IjXX Vol . r.
Portion of fertile Frond, under side.
MOHRIA THURIFRAGA.
S w a e t z . S c h k d h r . H o o k e r . J . S.m it h . S c h o t t .
P L A T E L X X . V O L . V I I I .
Osmunda thurifraga. L in n æ ü s .
Mohr ta—JN^amed after iVI. Molir, a German botauist.
Thurifraga—Frankincense.
A MOST interesting and d istinct F e rn , of ere c t habit.
An evergreen stove species.
N a tiv e of South Africa.
Re ceived into the Royal Gardens, K ew , from th e Royal
Botanic Gardens of B e rlin , in 1841.
Fro n d s bipinnate, narrow, eq u a l iu width, e.vcept ne a r th e
apex and base; pinnæ en tire , laciniated, or multifid, the fe rtile
pinnæ usua lly contracted or sub-contracted. P in næ opposite
or sub-opposite, distant below, approximate above.
Veins free and direct.
Sporangia sessile, nearly globose in form, opening vertically
on th e ir exterior side, and forming a raised b o rd e r of
ro u n d ed prominences along th e edge of th e fro n d on th e
u n d e r side.
Rhizoma short and creeping briefly.