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 PLANTS JAVANIC^ RARIORES.

��POLYPODIUM (DIPTERIS) HORSFIELDII.

Tab. I. 1

Char. Subgen. (Dipteris) Sort subrotundi, sparsi (v. transversim subseriati), inter (frondis palm at se) venas primarias dichotomas earumque divisiones, veimlis di- varicatissimis anastomosantibus insidentes. Indusium (verum) nullum.

Caudex repens teres. Frondes elongato-stipitatce binatce; partiales dimidiated p aim at o -lob at cb. Venulse secundarice tertiarice et ultimce divaricatissimce, crebre anastomosantes, penultimce latere sori/era, ultimce apice via dilatato libero. Indusium spurium vel {in D. Horsfieldii) pili sorum cingentes et capsidis intermixti ; vel (in D. Wallichii) materia pulp oso -gummosa capsulas immaturas obtegens.

Polypodium (Dipteris) Horsfieldii, frondis binatse palmatse subtus glaucse lobis serratis, soris pilosis.

Dipteris conjugata. Rei?nv. in Syllog. PL Nov. Soc. Bot Ratisb., torn. \\,p. 3.

Polypodium Dipteris. Blume Enum. PL Jav.,p. 135.

Descr. Filix 2 — 3-peclalis, vel elongatione stipitis usque orgyalis. Caudex repens crassitie pennae olorinae fibrillas copiosas nigricantes subramosas dimittens squamisque rigidis strigosis atris subulatis setaceo-acuminatis tectus, solidus, constans ligno quasi duplici, utroque e cellulis 2] elongatis impunctatis utrinque acutis composite), cum strato interposito tubum completum constituente, e vasis scalari-

1 The Plates of " Plantse Javaniese Rariores," not being at present acces- sible, will not be given among the Illustrations. They are entirely systematic, and the reader is referred for them to the original work. — Edit.

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