♦ 



TAB. VIII. 



PTERIS AUSTRALIS. 



FILICES. — Gyrat^. Br. Polypodiaceje. Kaulf. Filices verse. Willd. 



Gen. Char. PTERIS, Linn. Sori lineares, marginales^ continui ; capsulis sinu involucri insertis 



Involucrum marginale, continuum, scariosum, intus liberum. Br 



Pteris australis ; fronde dichotome radiata, laciniis linearibus acutis subfalcato-secundis, stipite 



frondem subsequante. 



Asplenium australe. Sivartz. Sijn. Fil. p. 74 et 258. t. 3./. 1. Willd. Sp. PL v. 5. p. 308. 

 Acrostichum australe. Linn. Suppl. p. AAA. (non Vahl.) 

 Hab. Insulis Mauritii et Borbonise. 



" Stipites plures e caespite squamis lineari-subulatis, membranaceis, ferrugineis, nitentibus congesta, radiculas sim- 



plices villosiusculas fuscas inferne emittente," erecti, flexuosi, 4— 5-pollicares, filiformes, hinc sulcati. 



Frondes lineari-filiformes radiatim dichotomae, laciniis 3— 4,-pollicaribus, acutis, subfalcato-secundis, glabris nitidis, 



ubique dorso sulcatis, marginibusque introflexis. 



Indusia e margine introflexo frondis continua, membranacea, initio fere ad costam attingentia. 

 Capsulce numerosae, fuscse. 

 Semina sphserica, minuta. 



Fig. 1. Portio frondis horizontaliter secta, cum indusiis capsulisque. f. 2. Capsulae. f. 3. Semina:— -mam. auct. 



If our figure of the structure of the frond of this plant, and especially of the indusia, be correct, 

 and we have examined it with considerable care, — we trust we shall be considered to have done 

 right in removing it from Asplenium to Pteris. 



Our specimens were ^athered bv Captain Carmichael in the Mauritius. 



