60

NEPHRODIUM.

lowest pair of primary pinnae compound ivith two or threepinnules resembling the superior pinnae, primary veins erecto-patent united by arches a little within the margin, the restvariously anastomosing and having no free veinlets in theareoles (inappendiculate), sori very copious scattered, appa-rently indiscriminately, over the whole under side of thepinnae and pinnules moderately large, involucre permanentsuborbicular and peltate but often exhibiting a shallow sinusas in Sagenia in general. (Tad. CCXXXII.)

Hah. Borneo , Sarawak , Thos. Lobb. —In outline and general aspect this comesnear Aspid. semibipinnatum, Wall, (our n. 74) ; but it is less compound, has morespreading pinnre. and pinnules of a different colour, and the venation is consider-ably different, having no free veinlets.

Many supposed species of authors might be added to the Euaspidium- and•Sbi/CTiia -groups, if such a list could be in any way instructive. One supposed As-pidium, however, from N. Granada, I am anxious to notice here, the “ A. dicra-nopterum ” of Mr. Eaton, in his ‘ Filices Wrightian® et Eendleriante.’ Theexcellent description and a fragment which Mr. Eaton was so good as to send mefrom ids only specimen, suffice to show that it is the same as a Polypodium (§Phymatodes) in my possession, first detected by Mr. Purdie, in 1845, at theemerald-mines of Maso, N. Granada, specimens of which, including the stipes,are 6 feet long; and from Tarapota, Eastern Peru, n. 4065; and at foot ofChimborazo , alt. 3000 ft., in woods, n. 5723, Spruce.

3. Nephrodium, Rich. Br.

Nephrodium, Schott, (§ Eunephrodium of this work).Hook. Gen. Fil. tab. XLV1II. B. Sphcerostephanos, J.Sm. (Mesochlsena, Br.) Hook. Gen. Fil. tab. XXIV.;very inaccurate. Hook. Fil. Exot. tab. LXII; very ac-curate. Pleocnemia, Pr. Hook. Gen. Fil. tab. LXX. A.(imperfect) and tab. XCVII. Lastrea, Pr. Hook. Gen.Fil. tab. XLV. A. Haplodictyum, Pr. Abacopteris, Plec-tochlsena, Camptodium, and Oochlamys, Fee. Pronephrium,Pr. Arthrobotrys, Wall. Arthropteris, J. Sm. Lastreas-trum, Pr. Hypodematium, Kze. Dichasium, Braun.

Sori dorsal, subglobose, involucrate. Involucre cordate orreniform, fixed by the sinus on the back of free or combinedveins, or terminal on a free veinlet. Veins either free or va-riously conjoined, and more or less anastomosing.—Ferns ofvery varied form and character, seldom simple (undivided) orpinnatifid, very frequently pinnate, ivith the pinna pinnatifid,or compound and decompound. Caudex erect or creeping.Stipites and pinnules rarely articulated. (Fadyenia, Olean-