rOLYl'OniUM, § DICTYOPTERIS. 103 



the costa and a double series on every segment occupying 

 nearly the whole space between the costule and the margin. 



Hal). Java, Thos. Lobb. — A most distinct species of this Sagenioid group of 

 Poll/podium, -with unusually large sori and arranged with great regularity. 



40G. P. (Dictyopteris) Erovgniariii, Bory ; caudex " subar- 

 horeous," sti])es?, frond " 3-!^ feet long at least" broad ob- 

 longo-ovate acuminate firm-membranaceousglaln'ous pinnate 

 bipinnate below, deeply pinnatifid at the ape.v, primary pinnte 

 short petioled G-14 inches long j-Sj inches wide from a 

 broad base oblong much acuminated distant, upper ones 

 more lanceolate and lobato-pinnatifid the rest deeply almost 

 to the rachis pinnatifid, segments l|-2 inches long |-H 

 inch wide from a broad base gradually acuminate entire or 

 crenato-lobate, lowest pair (or more?) pinnate with distant 

 pinnae 2-.3 inches long lanceolate, veins or costules straight, 

 veinlets nearly equally reticulated having here and there free 

 included veinlets, costular areoles included always elongated, 

 sori quite marginal. — Bory, in Du Perry, Voy.p. 263. t. 34. P. 

 pteroides, Pr. Relig. Hcenk.p. 25. t. 5./". 4 {not KL). Dicty- 

 opteris, /. Sm. Fee, Gen. Flip. 267- t. 21. A.f. 1. 



Hah. Indian Archipelago: Sorzogon, Hcenke ; \Vaigiou, D'Urville; Luzon, 

 Cuming, n. 171. — More compound than P. irregulare, with more elongated seg- 

 ments, and remarkahle for the constantly marginal sori. 



407. P. (Dictyopteris) Cumingimmm, Hook. ; caudex ?, 

 stipes ?, frond 2 feet and probably more long broad ovate 

 acuminate more or less firmly membranaceous glabrous bi- 

 pinnate below, pinnate above the middle, pinnatifid at the 

 apex, pinn£E short petiolate distant primary simple ones G-S 

 inches long 1-2 inches and more broad oblong-acuminate 

 deeply sometimes nearly to the costa pinnatifid, segments 

 ^-1^ inch long oblong acuminate subfalcate entire or lobed 

 at the margin (lowest ones sometimes free), lowest primary 

 pinnated pinnas nearly a foot long from a very broad base 

 triangulari-oblong, pinnules 3-4-5 inches long \-\ inch wide 

 lanceolate acun)inate lobato-pinnatifid, veinlets mostly reticu- 

 lated with large angular areoles (no free included veinlets as 

 far as I can find) costal ones the largest generally free at the 

 apex of the segments, sori dorsal or usually compital irregu- 

 larly scattered chiefly on the segments, the disk (parallel 

 with the costa;) without sori. — Dictyopteris Cumingiana, Pr. 

 Ohs. in Epiinel. BoLp.61 {without cliaracter). Dictyopteris 

 macrodonta, J. Sm. in Hook. Journ. Bot. m.p. 306 {as regards 



