H Y M E N O P H Y L L U M GRACILE.
F I L I C E S .— G y i i a tæ . B r . P o l y p o d i a c e æ . K a u l f . E i l i g e s v e ræ . W illd .
Gen. C h ah . H Y M E N O P H Y L L U M , Sm. S o r i marginales. Capsula sessiles, receptáculo
communi cylindraceo insertæ, intra Involucrum bivalve, textura froudis, valvis planis, exterius
liberis. B r .
I-Iy m e n o p h y l l ü m g r a c ile ; fronde pinnata, pinnis remotis bipinnatifidis laciniis lincaribus obtusis
integris bifidisve, rachi marginata, involucra late subrotunda, basi cuneata immersa.
Hymenophyllum gracile. B o iy . W illd . S p . P l. v. h . p . 527- S p ren g . S y s t. V eg e t. v. A. p . 131.
Hab . In sylvis insulæ Mauritii. Dom' B o iy , B o je r, Carmichael.
Caudex, ut in plurimis hujusce generis, gracilis, flexuosus, ramosus, hic illic radiculoso-fibrosus.
S tip e s erectus, atro-fusciis, nudus, 2— S uncias longus.
Frons digitalis et ultra, circumscriptione ovata, pinnata ; pinnis alternis remotis, bipinnatifidis, glabris, siccitate
fusco-badüs, laciniis linearibus, integerrimis, obtusis, simplicibus vel bifidis, minute reticulatis.
Involucra ad apices laciniarum, solitaria, semi-immersa, fere orbicularia, magis lata quam longa, inferne cuneata,
superne bilabiata, labiis semiorbicularibus.
Receptaculum inclusum, breve stipitatum, apice capsuliferum.
Cap su la orbiculares, compressæ, annulo completo cinctæ.
S emina subangulata, pellucida, obscure reticulata.
F ig . I . Pinna fructífera, f . 2 . Laciniæ pars, cum involucro, f. 3. Receptaculum capsuliferum. f .4 . Semina:—
magn. auct.
L ik e some others o f the genus, the present species, in a dry state at least, is o f an almost chestnut-
brown colour; it has a peculiar aspect, in consequence o f its remote pinnæ and n o t very numerous
luciniæ.
¡ 1:
\ .