184 PTERIS. 



Fil. of the U.S. Expl. Ejcjy. p. 115. Pt. firma, JVall. Cat. n. 

 100 (segments \ an inch broad). 



Hab. East Indies: Nepal and Silhet, Wallich ; Simla, T. 7'Aowso7j (8000 feet), 

 Col. Bates ; Carwhal, T. Thomson; Kumaon, Blinkivorth, Edgeivorfh, Strachey and 

 IVinterbottotn. Mountains of Ava (very large, lower bipartite pinnae 16 inches 

 long, segments \ an inch wide), Wallich. Mountains near Baiios, Luzon, 

 Brackeuridge. Sandwich Islands, freijuent, Gaudichaud, Brackenridye {and in 

 Herb. Hook, and Lindl.). — This, judging from the comparatively small por- 

 tions in our herbaria, must be one of the very finest species of this group 

 or subsection of Pteris ; and yet, except in size and the more deeply cut, 

 almost pinnulated pinn^, it is not easy to say how it is specifically distinct 

 from some forms of Pt. quadriatirita, while in the broad and decurreiitly 

 confluent bases of many of the segments it resembles Pt. deltea. It could 

 only be the widely different localities that induced Professor Agardh to keep 

 Pt. terminalis of Wallich distinct from Pt. excelsa of Gaudichaud; for be 

 well observes of the latter, " Antecedeuti {Pt, excelsa) simillima et forsan niinium 

 affinis." 



42, Pt. (Eupteris) ligulata, Gaud.; "fronds ternato-pin- 

 nate, pinnae pinnato-partite auriculate, auricles elongate ensi- 

 forni undivided {integrai) coarsely serrated or lobed, segments 

 linear-lanceolate subdecurrent, veins forked the lowest spring- 

 ing from the costa," Ag. — Gaud, in Freyc. Voy. Bot. p. 385. 

 Ag. Sp. Gen. Pterid. p. 23. 



Hab. Vaigiou, Molucca Islands, Gaudichaud. — This Fern is quite unknown to 

 me. Gaudichaud arranges it in the same section with Pt.pedafa, Willd.,and Pt. 

 geraniifolia, Raddi ; but Agardh, who appears to have possessed specimens and 

 to have seen others in the Herl)arium of Delessert and of the Paris Museum, 

 places it between his Pt. Blumeana and Pt. Grevilleana, Wall, (both of which we 

 are disposed to refer to Pt. quadriaurita), and he says of it, "Species valde para- 

 doxa ; Pt. Grevilleana mihi videtur proxima, licet ab hac quoque non parum dis- 

 crepat. Neque inter species Adiantoideas {Pelkea, nobis) jure disponitur." 



43. Pt. (Eupteris) arguta. Ait. ; fronds ample pedately 

 ovate firm-membranaceous pinnate, lowest pair of pinnre 

 bipartite or unequally pinnate, all the pinnae petiolate lan- 

 ceolate acuminate (a span to a foot long) deeply pinnatifid 

 nearly to the costa, segments 1-2 inches long narrow lanceo- 

 late subfalcate acuminate sharply serrated broadest and de- 

 current at the base, veins forked near the middle lowest in- 

 ferior one arising from the main costa bifurcate its veinlets 

 spreading, sori broad abbreviated extending from the base 

 of the sinus to the middle, stipes elongated and rachises 

 smooth stramineous or castaneous very glossy. — Alt. Hart. 

 Keio. ed. \. p. 458 (1789), ed. 2. p. 520. Vahl, Symh. i. p. 84 

 (1 790). Sw. Syn. Fit. p. 98. IFilld. Sp. PL v. p. 387. ^g- 

 Sp. Gen. Pterid. p. 36. Seuher, Flor. Azor. p. 15. Webb, 

 Phytog. Canar. sect. 3. p. 450. Pt. serrulata, Forsk. Ft. 



