156 31. PTERIS, § EUPTERIS. 



11. P. dhtans, J. Sm. ; st. about 6 in. 1., slender, erect, naked, pale ; /r. 

 about 1 ft. I., 4-6 in. br,, terminated by a pinna with a long, narrow, sharply 

 serrated linear apex, below which are 12 to 20 pairs of closely-placed short 

 lobes \ in. or less 1., ^ in. br., the lower two-thirds of the frond with 6 to 9 

 opposite pairs of distantly-placed pinnae with a long linear point, and at the 

 base a few spreading pinnules ; rachis scal)rous ; texture coriaceous ; veins con- 

 spicuous, simple or once-forked, about 1 lin. apart at the base ; the barren lobes 

 sharply and finely spinuloso-serrated ; invol. membranous. — Hk, Sp.2. p. \&^. 

 t. 124.'B. 



Hab. Luzon, Philippine Islands ; gathered by Mr. Cuming. 



*** Pinnatce, Lowest pinnae simply pinnate. Sp. 12-18. 



12. P. heteromorpJia, Fee ; st. 6-12 in, 1., naked, erect, pale ; fr. 12-18 in. 1., 

 6-9 in. br., ovate-lanceolate, with the apex of the long terminal point entire, 

 but the lower half sinuated and furnished with a few sliort linear lobes ; pinnce 

 in several opposite pairs, the lowest of which ai-e 3-4 in. apart, the u]iper ones 

 entire or slightly compound at the base, the lowest pair cut down nearly to the 

 rachis with several spreading linear pinnules on each side, 1 in. or more 1., f in. 

 br, ; texture subcoriaceous ; rachis and both surfaces naked, the margins slightly 

 crisped ; veins conspicuous, usually once forked, their bases about 1 lin. apart ; 

 invol. narrow, membranous, Hk. Sp. 2. p. 166. 1. 127. 15. 



Hab. Philippine Islands ; gathered by Mr. Cuming. — Probably a mere abnormal form 

 of quadriaurita. 



13. P, Griffithii, Hk. ; st 6-8 in. 1., slender, etect, wiry, naked, straw 

 coloured ; fr. 6-8 in, 1,, 2-3 in, br., ovate-lanceolate, the terminal pinna Hnear 

 entire, about 2 in, 1,, \ in, br, ; upper lateral ones simple, not more than ^ in 

 apart, and the base decurrent down to the next, the lower ones lanceolate-deltoid 

 with a linear entire point and several short erecto-patent linear entire pinnl. oi 

 each side ; texture subcoriaceous ; rachis and both surfaces naked ; wms obscure 

 about 1^ in. apart at the base, usually once forked ; invol. narrow, mem 

 branous,— i7/l-, Sp. 2. p. 170. t. 123, A, 



Hab. Mishmee, N, Hindostan ; gathered by GrifBth. 



14. P. madagascarica, Ag. ; fr. ample, bipinnate ; terminal pinna linear, tl. 

 upper lateral ones small, linear, sessile, those next in order larger and stalked 

 the lower ones 2 in, apart at the base, deflexed, oblong-lanceolate, about 6 in. 1 

 4 in. br,, with an entire terminal lobe and several stalked \?tXeraX pinnl, on eacl 

 side, which are about 2 in, 1., 2 lin. br,, deeply serrated towards the point, 

 and spreading from the scabrous rachis at right angles ; texture coriaceous • 

 veins conspicuous, about 1 lin, apart at the base and usually once forked 

 near the base; invol. narrow, firm, — Uk.Sp.2. p. 171. t. 122, A. P. subserrata, 

 Bojer. 



Hab. Madagascar ; gathered by M. Bojer. 



15. P, miitilata, Linn, ; st. slender, erect, naked, polished, straw-coloured or 

 bright-brown, those of the fertile frond the largest (9-12 in,) and sti-ongest ; 

 fr. about (J in, each way, deltoid, with a linear entire jioint, several entire jomwo?, 

 but the lowest jjair lanceolate-deltoid, 4-6 in, 1,, 8-4 in. br., with several linear, 

 erecto-patent jiinmdes on each side, the divisions of the barren frond shorter and 

 broader than those of the fertile one, not serrated, but mucronate at the point, 

 and furnished with a cris])ed white cartilaginous border ; rachis and both 

 surfaces naked and shining ; veins about 1 lin. apart at the base, simple or once 

 forked ; invol. narrow, membranous. — Hk. Sp. 2. p. 1G4. t. 131. A. 



Hab. West-Indian Islands. — P. conchina, Heward, is a more compound form than usual. 



