218 



specimens of Pt. gigantea of Presl, and of Sieber, Fl. Martin, n. 366, which 

 Agardh refers hither, but Kunze (Linnaea, vol. ix. p. 76) to Pt.podophylla, Sw. 



96. Pt. (Litobrochia) Berteroana, Ag. ; fronds ample bi- 

 pinnate below membranaceous glabrous pale-green, superior 

 pinnae and pinnules broad-lanceolate acuminate deeply pin- 

 natifid sessile and decurrent at the base, segments lanceolate 

 approximate erecto-patent acute or acuminate serrated mu- 

 ticous, sirmses acute, basal veins mono-arcuate, secondary 

 areoles marginal, sori on the margin of the segments not 

 extending to the apex nor to the bottom of the sinus, invo- 

 lucres rather broad membranaceous, stipes rachises and main 

 costae tawny very smooth. — A(/. Sp. Gen. Pterid. p. 66. " Pt. 

 tenera, Kaul/.?" Bertero, MS. Colla, Fl. liar. Chil. iv. 

 p. 38. 



Hab. Shady woods, Juan Fernandez, Bertero, Cuming, in Herb. Nostr. — Pinnae 

 a foot long, upper ones and pinnules adnato-decurrent, in the widest part 3-4 

 inches. Segments 2 and more inches long, sterile ones duplicato-serrate. Si- 

 nuses naiTow, acute ; areoles only one or two between the basal arc and the mar- 

 gin, so that the areoles are comparatively large and few. — Claude Gay, in his 

 ' Flora Chilena,' has four species of Litobrochia, all from Juan Fernandez : — 

 1, Pt. incisa, Th., and of this work ; 2, Pt. patens, Presl, Anal. Pterid., not Hook, 

 (a species not retained in the ' Tentamen ' of that author) ; 3, Pt. appendiculata, 

 Kaulf., always considered the same as decurrens, Pr. ; and 4, Pt. decurrens, of 

 Presl and Raddi ; but to none of them can our Pt. Berteroana be referred. 



97. Pt. (Litobrochia) Endlicheriana, Ag. ; fronds ample 

 bipinnate below membranaceous glabrous pale-green, supe- 

 rior pinnae and pinnules broad-lanceolate acuminate nearly 

 sessile, segments lanceolate scarcely falcate rather obtuse 

 serrated muticous, sinuses very acute, basal veins mono- 

 arcuate, fourth series of areoles marginal, stipes and rachises 

 tawny glossy. — Ag. Sp. Gen. Pterid. p. 66. Hook. Ic. Plant, 

 t. 97.3. Pt. comans, var., Hook.fil. FL N. Zeal. '\\. p. 26. Pt. 

 Zahlbruckneriana, Endl. Fl. Norfolk, p. 13? — ^. segments of 

 the pinnae copiously pinnatifid. 



Hab. Norfolk Island, Allan Cunnivgham, Ferd. Bauer, C. J. Simmons, Esq. New 

 Zealand, D'Urville, Cunningfiam, Sinclair, Hooker Ji I. Tasmania, R. Gimn (var. 

 /3 only). Society Islands, Cuming, n. 1-126 (o only). Pacific Islands, north of 

 Norfolk Island ; Sunday or Raoul (Kermadee), and Angau, Feejee (pinna; very 

 large), Macgillivray and Milne, in Capt. Denham's Voyage of the Herald. — Our 

 figure in the ' Icones Plantarum,' 1. c, gives as good an idea as can be done, on 

 so small a scale, of the Pt. Endlicheriana, Ag. ; and those who have seen the 

 Juan Fernandez Pt. Berteroana of the same author, must be struck with the 

 very great similarity between the two; nor was Agardh himself ignorant of this, 

 but he observes that they differ in the nature of the veins. Certainly the areoles are 

 much smaller and more numerous in segments of the same size of the present 

 plant than in Pt. Berteroana ; so that, in general, a second areole from the cos- 

 tule attains the margin in the one, while in the otlier there are four areoles be- 



