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H Y M E N O P H Y L L U M CR I ST AT UM.
FILIC ES .—G y 'R a t æ . B r . P o i.v roD iA C F .Æ . K a u lf. F i l i c e s v e ræ . Willd.
G e n . C h a h . H Y M E N O P H Y L L U M , Sm. Sori marginales. Capsulæ sessiles, receptáculo
communi cylindraceo insertæ, intra Involucrum bivalve, textura frondis, valvis planis, exterius
liberis. Br.
H y m e n o p h y l lu m cristatum; fronde oblonga pinnata, pinnis bipinnatifidis, segmentis linearibus
obtusis costaque dorso aculeato-serratis, soris rotimdatis bipartitis spinuloso-ciliatis.
I I a b . In M onte Cayambe, Andium Peruvianorum, ad truncos arborum; altit. 2 5 0 0 hexap.
propc limites uivis perpetua?. 1828. D . Prof. Gui. Jameson.
Caudex repens, gracilis, filiformis, h ic illic radicans, radicibus hirsutis.
S tip e s subuncialis, tei-es, nudus, gracilis.
Frons digitalis ad palmarem, circumscriptione oblonga, pinnata, pinnis oblongis, bipinnatifidis, glabris, fuscis,
superioribus decurrentibus, laciniis linearibus, obtusis, pulchre reticulato-venosis, costatis, margine spinuloso-
serratis, costa subtus rachique spinulis vel serraturis membranaceis latis acutis cristatis.
Soi'i majusculi, marginales, prope basin pinnarum superiorum, sessiles.
Inmlu citcm orbiculare, bivalve, dorso utrinque convexum, marginibus planis ciliato-spinosis.
Receptaculum perbreve, globosum.
Capsula peltatæ, annulo transversali completo cinctæ, sessiles.
S m in a ovalia, subangulata, obscure reticulata, pallide flava, pellucida, granulis minutissimis numerosissimis mixta.
Fig . 1. Po rtio pinnoe. f. 2 . Po rtio altera: magis a iu ta , f. 3. Involucrum. f. 4 . Receptaculum capsularum.
f. 5. Semina cum granulis:—mag«. aac/.
For th is h igh ly interesting addition to th e genus Hymenophyllum wc are likevnse indebted to our
friend Professor William Jameson. I t is distinguished n o less' by the serrated or spinulose crested
midrib and rachis, than by the large and conspicuous involucres.
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