204 PTERIS. 



(fide spec, in Hb. Soc. Linn.J." Ag. Sp. Gen. Pterid. p. 26. 

 Campteria biaurita, Hook. Gen. FU. t. 75 A. C. Rottleriana, 

 PresL Pterid. t. 5. p. 26 ? Pteris geminata, Ag. Sp. Gen. 

 Pterid. p. 31. Pt. Kleiniana, Presl, Tent. Pterid. t. 5./. 19 

 {Agar dh).— Plum. Anier. t. 14. Fil. t. \5. 



Hal). The following localities are entirely from our own herbarium. East 

 Indies: Kumaon, Blinkvwrth, Strachey and Winierbottom ; Nepal, Wallich, 

 J. D. Hooker ; Sikkim, 1-4000 ft., J. D. II. ; Assam, Griffith ,■ Khasia, Griffith, 

 2000 ft., J. D. H.; Silhet and Chittagong, Hooker, Thonison, and Griffith; {Dr. 

 Hooker and Dr. Thomson's specimens distributed are n. 148-9). Ava and 

 Peiiang, Wallich; Concan, Mr. Law; Nilgiri, Gid. Thomson, M' Ivor. Ceylon, 

 Gardner, n. 1130, 1240, 1128. Bourbon {Herb. Mus. Par.); Mauritius, Bojer ; 

 ia.\A, Millet ; Tropical Western Africa, Dr. Ctirror ; Fernando Po, Dr. Vogel. 

 West Indies : Antigua, Dr. Nicholson, segments narrow distant ; Guadaloupe, 

 U Herminicr. Brazil, Arayos, Gardner, n. 407G. — Specimens entirely according 

 with the character of this species, I possess, as will be seen above, from much more 

 numerous localities and countries than the preceding one. Its essential character 

 consists in the chain or series of areoles, more or less broad, sometimes very narrow, 

 one between every pair of costules (or midrib of the segments), caused by the 

 meeting of the two basal or inferior veins, forming an arch more or less angled, 

 and which gives out free veinlets or branchlets from the upper side, while the 

 opposite boundary of the areole is formed by the costa. In general the two 

 basal veins spring from the axis or sinus formed by the costule, so that the whole 

 space between the base of the costules is occupied by the areole, but at other times 

 one of the two nerves springs from the costa at a distance from the sinus ; 

 then the areole occupies only ^ or f of the space between the costules. All the 

 other veins are generally free, rarely and only here and there anastomosing ; 

 in such cases indicating a passage to Litohrochia. Equally rare is it to find the 

 basal veins free, though not unfrequently they unite in such a manner as to form 

 a very acute angle rather than the curvature of an arch. — Both in this and the 

 precedhig species we have, like Agardh, felt it impossible to guess at what authors 

 in general have intended by Pteris biaurita, 



70. Pt. (Campteria) Galeotti, Fee; "fniiids pinnated bi- 

 partite at the base glabrous, pinnules pinnatipartite pectina- 

 ted shortly petiolated caudiform at the apex, segments oblong 

 numerous almost all fertile leaving between sinuses which 

 are rounded at the base, basal nervelets uniareolate uniting 

 the segments, indusium straight narrow, sporothecia thick at 

 the maturity of the sporangia."--Litobrochia (§ Campteria) 

 Galeotti, Fee, Fil. Stne Mem. p. 75. 



Ilab. Mexico : Oaxaca and Teotalingo, n. 6485, Galeotti. — " Large species 

 of the size and with the habit of Pt. nemoralis, Willd." 



71. Pt. (Campteria?) ameena, Bl. ; "frond bipinnatifid, 

 pinnre opposite shortly petiolate lanceolate attenuate at both 

 extremities pinnatifid membranaceous glabrous lowest ones 

 bipartite, segments subfalcato-oblong somewhat acute ap- 

 presso-serrate lowerones obtuse,stipcs and rachis glabrous." — 

 Blume, En. PL Jav. p.2\0. Ag. Sp. Gen. Pterid. p. 27, in note. 



