I'TKRIS. 1C7 



linear-lanceolate elongated acuminated, S to 5 or 6 inches 

 long entire at the margin or sul)sinuato-crenate serrated oidy 

 at the apex simple (undivided) or liere and there with only a 

 single or two horizontal loljes or ears near the hase (rarely 

 above the base) at other times the upper pinna; are sparsely 

 lobed and the lower ones gradually more so, the lowest ones 

 pinnatifid in their lower half with 4-6 oblong-lanceolate 

 lobes on each side spreading liorizontally (almost pectinated), 

 veins approximate simple or once forked, veinlets reaching 

 to the margin, sori continuous but not extending to the apex, 

 involucres marginal membranaceous narrow, stipites short in 

 proportion to the length of the fronds and rachises slightly 

 rough to the touch bright tawny glossy. (Tab. CXXVII. B.) 

 Pt. heteromorpha, Fee, Gen. Fil. p. 125, 127- Pt. propinqua, 

 J. Sin. En. Fil. Phil'/pp. ; in Hook. Journ. of Bot. iii. p. 405 

 {not of Agar dl I, and name only). 



Hal). Luzon, Cuming, n. 409. — This Fern is only known to botanists through 

 Mr. Cuming's specimens from Luzon, and Fee has done well to name it hetero- 

 morpha. It is very variable, scarcely any two specimens being alike, and yet 

 there is no great variety of form in the pinnules on the same plant : they are 

 either entire or lobed or pinnatifid with from 1 to 10 or 12 segments: and the 

 most numerous segments are on the lower pinnas. Sometimes upon a specimen 

 pinnaj are seen having only a solitary segment on one side at the base (semi- 

 hastate). Its aflinity is probably with Pt.crenafa; yet some of our specimens 

 have so many of the pinna; regularly pinnatifid, that it might almost be referred 

 to the next subsection or group. 



18. Pt. (Eupteris) sen^iilata, L. fil.; a foot and a half to 2 

 feet high, caudex none, root of copious wiry fibres, frond 

 ovate a foot and more long membranaceous pellucid Ijipin- 

 nate, pinnee opposite, pinnules linear acuminate elongated 

 (especially the terminal ones) sterile portions spin uloso -ser- 

 rate all decurrent on the rachis so as to represent a bipinna- 

 tifid frond, lowermost pinnules sometimes again divided (bi- 

 partite) one or two of the lowest pairs often free (not decur- 

 rent) fertile ones the narrowest, veinlets simple or forked 

 nearly horizontal, involucres subintramarginal membrana- 

 ceous rarely reaching to the apex, stipes slender generally 

 shorter than the frond brown-stramineous glossy. — Linn. fil. 

 Suppl. p. 425 {e.vcl. syn.). Siv. Syn. Fil. p. 97. Willd. Sp. 

 PL p. .S73. Sc/ikh. Fil. t. 91 {excellent). Ag. Pterid. p. 1.3. 



llab. China, on various authorities. Hongkong, Col. Champion, Swartz adds 

 Ceylon ; but I have never seen specimens save from China, and a very young and 

 rather dubious one from Nangasaki, Japan {Uabinyton in Herb. A'o.v/r.). — A well- 

 known plant from being long cultivated in our gardens. Most of our copious 

 si)ecimens exhibit a deeply pinnatifid, rather than a pinnated frond, but analogy 



