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TAB. XXVI.
A S P ID IUM S INGA POR IA N UM.
FILICES.—G y r a t æ . B r . P o l y p o d i a c e æ . K a u lf. F i l i c e s ve ræ. irUld.
G e n . C i ia e , A S P ID IU M , V,:. H Y P O P E L T I S , VI\A\. A S P I D I I species,
Sori rotuiidi, dorsales. Involucrum orbiculare, pcltatum, stipitatum, in medio sori insertum,
undique liberum. B r .
A s nm uM Singaporianum ¡ fro n d e s im p lic i s tip ita ta la te la n c e o la ta a c um in a ta in te g e rrim a , b a si '
d e c u rre n te , so ris in ven is tc n ia r iis , c ap su lis lo n g e pedic e lla tis.
Aspidium Singaporianum. JValtich M S S .
H a b . In insula, Singapore dieta. Wallich.
Caudex repens, sublignosus, hic illic radiculosus.
Slipes erectus, 4—8-polIicaris, teres, glaber, nigro-fuscus, hinc sulcatus, inferne subsquamosus.
Frons octo uncias longa, late lanceolata, submembranacea, utrinque glabra, margine oninmo mtegernma, apice
acuminata, basi decurrens, costata, venisque lateralibus rectis subobliquis instructa. E x his venis aliæ venæ,
venulis fructiferis reticulaUe, ortoe sunt.
Sort numerosi, fusci, venis ternariis siti, parvi.
Jnvolumm exacte orbiculare, medio depressum, raembranaceum, peltatum, vix stipitatum, demum, margmibus
solutis, subrecurvis, undulatis.
CapsìiUe sphoerico-compvessoe, aimulo integro cinctæ, reticulatæ, longe pedicellatæ.
Semina subsphærica, reticulata, limbo subpelliicido marginata.
Fig. 1. Portio frondis, cum soris. f. 2. Sorus vix nmturus. f. 3. Sorus maturas, f. *. Ejusdem sectio.
f. 5. 5. Capsulæ. f. 6. Semina.
1,1 the chira ctcr we huve here given of Aspidium, wc liuvc in view the adopting Michuux's iiid
' Mr. Brown’s idea of separating the old Aspidium o f Swartz into three genera, Aspidium, Nephrodium,
and A lh yrium. We have not yet ourselves had sufficient experience to determine how far
their characters arc well defined; Imt feeling the necessity of grouping into something more than
divisional cliavacters th e overgrown genus Aspidium, we willingly follow such able botanists as
those now quoted.
O f the original Aspidia, three only are described by Willdcnow with “ nndivided fronds ;” and they
have all an articidiited or jointed stipes. There is a fourth species with a stipes destitute of jo in t
given in the Exotic Flora, A sp . Walliehii, H o o k .: b u t th a t would bo a Nephrodium of Brown, and
hits the sori confined to a line on each side the m id rib ; w h e r e a s h e r e the fnictifications arc very
numerous, arising, as in some Polypodia, from the ultimate divisions of the v e in s : and indeed the
whole plant has much the appi'aranee of a Polypodmni.
We aro indobfcd for onr siiocimens to onr liberal friend Dr. Wallich.
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