TAB. II. 



ACROSTICHUM SUCCIS^FOLIUM. 



% 



FILICES. — Gyratje. Br. Polypodiaceje. Kaulf. Filices verse. Willd. 



Gen. Char. ACJROSTICHUM, Linn. Sori amorphi, seu Capsula per totam paginam inferiorem 



- 



frondis (interdum diversae) vel ad ejus partem sparsae. Indusium nullum (nisi squamulae, v. setae 

 in quibusdam capsulis interstinctae) . Br. 



\ 



Acrostichum succisafolium ; fronde simplici oblonga coriacea obtusissima stipiteque ferrugineo- 



squamosis, squamis lanceolatis spinuloso-serratis. 

 Acrostichum succisaefolium. Pet. Th. Esq. de la Flore de Trist. d?Ac. p.3l. Carm. Descr. of 



» 



the Isl. of Trist. oVAc. in Linn. Trans. v. 12. p. 510. Kaulf. Enum. Fil. p. 6o. Poir. in 

 Encycl. Meth. Suppl. v. 1 . p. 1 20. 

 Hab. In sylva insulae Tristan d'Acunha. Aubert du Petit Thouars. Carmichael. Insulae 



Mauritii. Aubert du Petit Thouars. 



Caudex repens, hic illic fibrosus, paleis squamosis, subulatis, intense fuscis ubique obsitus. 



) 



Stipes 6-pollicaris et ultra, erectus, crassiusculus, undique ferrugineo-paleaceus. 



Frons digitalis, coriacea, oblonga, costa medio instructa, basi apiceque valde obtusa, utrinque paleaceo-squamosa, 



squamis lanceolatis, acuminatis, spinuloso-ciliatis, membranaceis, reticulatis, non raro subpeltatis :— -fertilis 



magis angusta basi apiceque obtusissima. 



* 



Capsulce numerosissimae, totam inferiorem partem frondis tegentes, costa excepta, intense fuscse, pedicellatae ; annulo 



fere completo. 



\ 



i 



Semina subsphaerica, reticulata, marginata. 



Fig. 1. Squamae. f. 2. 2. 2. 2. Capsulae. f. 3. Semina :— magn. auct. 



This very distinct species of Acrostichum seems to have been found by M. du Petit Thouars in 

 the Isle of France, as well as in Tristan d'Acunha. Our specimens are from the latter island, where 

 they were gathered by Captain Carmichael. 



Poiret has given this plant upon the authority of Jussieu's Herbarium as the A. succisafolium 



■ 



of that author ; but he probably only adopted the name of Du Petit Thouars. 





