POLYPODIUM, § EUPOLYPOniUM. 207 



pellucid strioc or spurious veins, sori copious round or oval 

 often confluent. — Kau/fs. En. Fil. p. 101 . Gaudich. in Freijc. 

 Voy. Bot. p. 35G. Hook, et Am. Bot. of Beech. Voy.p. 103. 

 Hook. Ic. Pl.t. 944. Brack. Fil. U. St. Expl. Exp. p. 10.— 

 Var. bipinnatifidum ; frond elongate bipinnatifid. Hook. Ic. 

 PI. t. 945. P. myriocarpum, Hook. Ic. PL t. 84. 



Ilab. Sandwich Islands, Chaminso, Douglas, Beechey, Diell, Hillabrand, Brnck- 

 p>irli/f/e (elev. on tlie mountains, 8000 feet). — There is a pecuharity in this i)lant 

 which I have not observed in any other Fern. The frond is thiciv and opaque, 

 hut the veins are ])elhicid, nnd of a rich tawny colour, wlien held between the eye 

 and the light ; and, besides the free veinlets, clavate at the extremity, of which 

 the first superior branch bears tiie sorus, there are pellucid strisc or pseudo-veins, 

 always communicating with a crenature or sinus of the marginal teeth, often as 

 conspicuous as the true veins. 



104. P. (Eupolypodium) Hartivegianum, Hook.; caudex 

 stout creeping densely clothed with dark-brown glabrous 

 falcate subulate scales, stipes 4 inches long greenish-brown 

 glabrous, frond a foot long 3^ inches broad oblong-lanceolate 

 firni-membranaceous acuminate opposito-pinnate only at the 

 base, the rest deeply pinnatifid upwards, segments alternate 

 and as well as the pinna) horizontal rather distant with broad 

 sinuses, the bases above and below more or less decurrent 

 oblong-lanceolate somewhat acute entire or subsinuato-cre- 

 Tiate, lowest two pairs of pinna; deflexed scarcely abbreviated 

 at the base, above having a truncated auricle, costule slender 

 black, veins black slender twice forked, sori on every segment 

 and pinnae nearer the margin than the costule bright-yellow 

 oval transversely oblique, rachis brown and as well as the 

 costule (and occasionally the veins) pubescent. — P. Hartwe- 

 num. Hook, in Benth. Plant. Hartweg. p. 55, and in Ic. PI. 

 t. 390. 



Hab. Mexico, on the mountain Sumata, elev. 9500 feet, Ilartxreg, n. 415. 



105. P. (Eupolypodium) Martensii, Metten. ; "caudex 

 creeping stout clothed with rather large reddish membrana- 

 ceous flaccid acuminated serrulated scales, stijjes 1 inch long 

 pubescent, frond membranaceous pubescent on l)oth sides 

 5-6 inches long lanceolate or oblong-acuminate pinnatipar- 

 tite to the costa, segments 10 lines long 2 lines wide elon- 

 gato-oblong or oblong obtuse entire, lower ones distinct, 

 lowest a little abbreviated adnate at the attenuated base, 

 upper ones contiguous, sori intermediate between the costa 

 and the margin 6-8 on each side, capsules loosely collected 

 bearing 2-4 very long hairs at the top thrice as long as the 



