224 
PLATYCERIUM. 
PLATYCERIUM BIFORME. (BL) 
The figure is taken from a drawing (on a very reduced scale) made by the Rev. C. S. Parish from a living spe cimen of this 
magnificent fern. Plate No. CIX of this work is a figure of a portion of a fertile frond (natural size), shewing the venation. Mr. Parish 
informs me that the sori cover the whole concavity of a half cup-like coriaceous pedicelled receptacle, my former figure gives the idea of 
the receptacle being as flat as the rest of the frond, but a further examination proves that this receptacle is burst along its margins and 
must have been concave, but it could not have been such a perfect half cup as represented in the present drawing, but the receptacles 
probably differ much according to age, the younger ones being more cup-shaped. Sir W. Hooker describes the fertile segment as a reni- 
form stipitate shield-like receptacle, but does not mention its being concave, and it probably appears quite flat in all herbarium specimens. 
PLATE No, CCXXIV. 
