31. PTERIS, § ECPTEKIS. 155 



6. p. ILxAeriama, Agardh ; ii. 6-12 in. 1., naked, erect, pale ; ^. 9-12 in. I., 

 6-9 in. br., with a loi^, linear, entire terminal pitma, and two to sis pairs of 

 sessile opposite entire lateral ones, the largest of which is about 6 in. L, f in. br., 

 and the lowest of which is forked at the base on one or both sides ; texture 

 coriaceons ; raehis and both surfaces naked, opaqne ; veins nearly 1 lin. apart at 

 the base, simple or once forked, oonspicnons aboTe, but scarcely visible beneath ; 

 irtvol. narrow, brownish. — Hi. Sp. 2. p. 165. 



Hab. Adam's Peak, Ceylon, atabont 2, 000 ft Bearded by Mr.Thw^tes as a variefy 



of P. eretica. The sort are slightly inctamarginaL 



7. P. dtu^Una, Hk. ; si. 6-9 in. 1., slender, wiiy, naked, straw-coloured ; Jir. 

 consisting of 3 to 5 linear slightly serrated ptiifue, 2-6 in. L, lj-2 lin. br., which 

 issue from at or near the same point, sometimes the two enter ones from a little 

 below the others ; tezture coriaceous, both surfaces naked ; veins conspicnons, 

 simple or forked, nsnally about 1 Im. distant from one another at the base ; 

 invol. broad, pale.— St. ^. 2. p. 160. 1. 130. A. 



HJab. Nepaul, SikUm, and Khasya, ascending to 9,000 ft, — In habit this conies near 

 F. crttiea P, but the Tenatdon is diffierent. 



8. P. umhrosa, B. Br. ; st. 12-18 in. L, strong, erect, bright reddish-brown, 

 scabrous ; fr. 12-24 in. L, 6-12 in br., with a terminal pinna and usually 6 to 9 

 lateral ones, all of which ran down the stipe at the base so as to form a broad 

 wing which reaches nearly or quite to the nest node, the npper ones linear, 

 3-6 in. L, J-4 in. br., finely serrated in the sterile portions, the lower ones 

 forked or with 2 or 4 erecto-patent linear pinnules ; racUs and both surfaces 

 naked ; texture coriaceous ; vans fine but conspicnons, simple or once forked. — 

 Hk. Sp. 2. p. 162. 1. 130. B. 



Hskb. Tropical and T^npeiate Anstralia. — A larger plant than P. eretica, with a 

 conspicnonslj winged lacbis and several compound pinns. 



9. P. serrulata, L. fil. ; sf. 6-9 in- 1., erect, wiry, naked, pale or brownish ; fr. 

 9-18 in. 1., 6-9 in. br., ovate, bipinnatifid, the main raehis margined with a wing 

 which is 1^2 lin. br. at the top, and grows gradually narrower downwards ; 

 pinnce in six or more distant opposite paiis, the upper ones simple, often 4-6 in. 

 1., ^-^ in. br., the lower ones with several long linear erecto-patent pinnules on 

 each side, the edge of the barren ones spinoloso-seirnlate ; texture scarcely 

 coriaceous ; raehis and both surfaces naked ; veins clearly visible, simple or once 

 forked, about 1 lin. apart at the base ; invol. narrow, membranous. — Hi. i^. 

 2. p. 167. 



Hab. A well-known plant in gardens^ common in Chma, and received lately fiY>m Japan 

 from Dr. Haoce, and from Natal fix)m IL W. Bawson, Esq. — P. Ivxuriota, Knnze, a 

 garden plant, supposed to be a native of Manilla, is said to differ by its longer and nar- 

 rower frond, less branched and more eqnal lower piiuiae, and winged petioles. 



10. P. eK^i'^yrmis, Burm. ; st. 3-6 in. 1., slender, erect, naked, straw-coloured ; 

 fr. 6-12 in. L, .3-6 in. br., with a long terminal pinna and 2 to 4 pmrs of 

 lateral ones, those of the fertile frond slightlv compound, the central portion 

 2-4 ifl. L, ^ in. or less br^ entire, the upper ones of the stenle firond decurrent, 

 the lower on^ subdeltoid, cut down to tiie raehis below into 2 to 6 obvate-oblong 

 sharply-toothed pinnules, which are often § or even 1 in. br. ; texture sub- 

 coriaceous ; raehis and both surfaces naked ; veins not very conspicnons, usually 

 once or twice forked. — ^P. crenata, Sw. HI. iSp. 2. p. 163. t. 127. A. 



Hab. Hindostan, from the Himalayas to Ceylon, Cfansan, and Loo-cboo Islands sonili- 

 ward to Tropical Australia, eastward to Samoa and FijL — ^Thia has the fertile fronds of 

 the present^ with barren ones more like those of the next group. 



