566 4art. PTERIS. § 1. EUFTERIS. C*. SIPINNATIFroAfi. 



asperula, J. Sm., Christ, Bull., Herb. Boiss., VI, 148; Pt. Blumeana, Ag., var. 

 a^erula, Christ, Philipp. Journ., II, 172; — var. Blumeana, Bedd., Handb. 

 Ind. Ferns, 112; Pt. Blumeana, Ag., Rec, 22; — var. argentea, Bedd., 1. c, 

 111; ? Pi. argyraea, Moore; — var. normalis; Pt. normalis, Don, Bl., Enum., 

 211; — var. albido-maculata ; Pt. normalis, Don, var. B., Bl., 1. c, 211; — 

 var. nemoralis; Pi. nemoralis, Witld., BL, 1. c, 210; Bau. & Hk., Gen. Fil-, 

 tab. LXIV; — var. trachyphylla ; Pt. Irackyphylla, Kze, Bot. Zeit.-, ^848, 

 196; — var. Whilfordi; Pt. Whilfordi, Copel, Philipp. Journ., I, Suppl., 255. 



Stipes 15 — 60 c.M. long, erect, strong, naked, or scaly at the base, 

 smooth, green, stramineous or brown. Fronds 15 — 100 c.M. long, 10—^0 

 c.M. broad or broader, with a terminal pinna and 5 — 11 lateral ones on each 

 side. Pinnae erecto-patent, pinuatifid '/s'^^Y ^iown or more to the costa, 

 5 — 30 C.M. long, the lowest ones forked at the base on the lower side with 

 1 — 2 similar, but smaller, regularly pinnatifid segments. Lobes several to 

 numerous, rather close, parallel, pectinate, linear or linear-oblong, rather erecto- 

 patent or falcate, eqtire or serrate, blunt or acute, ± 1 — ^^\^ c.M. long, + 

 2 '/a — 7V2 m.M. broad, the lowest not or hardly decurrent at the base. Tex- 

 ture herbaceous to subcoriaceous ; rachis and surfaces naked, smooth, rachis 

 and costae often canaliculate above and purveyed there with distant, spine- 

 like bristles; veins conspicuous, simple or often forked, the lowest posterior 

 ones springing from the base of the costulae (main veins). Sori often conti- 

 nuous along the whole margin of the lobes. — A very variable species. 



Var. setigera: Costulae spinulose like the costae. 



Var. Blumeana: Very large; lobes 50—60 to a pinna, not falcate, 

 nearly free at the base, eqpially wide throughout or broader at the apex, the 

 apex rounded, barren, entire or crenulate. 



Var. argeutea : Fronds provided with broad, whitish bands running 

 down the centre of the pinnae. Lobes not retuse at the apex. 



Var. noriualis : Lobes subtruncate, retuse at the apex ; lowest posterior 

 veins often springing from the costae at some distance from the costulae. 



Var. albido-inaeulata : Like var. normalis, but the fronds varie- 

 gated like var. argentea. 



Var. nemoralis: Lowest posterior veins springing from the costae 

 as in var. normalis, sometimes uniting with the opposite anterior lowest veins 

 and then forming here and there a single costal areola. 



Var. trachypbylla : Stipe, rachis and costae more or less scabrous. 



Var. IVhitfordi: Lobes conspicuously erecto-patent, nearly close. 



All warm countries, the varieties scattered here and there. 



