190 



THE DICTIONARY OF GARDENING, 



Folypodium continued. 



cut down to a broadly- winged rachis into entire, acute lobes, 

 which are often 1ft. to lift, long and Sin. to 4m. broad, son 

 small, copious, slightly immersed, scattered. Java and Philip- 

 pines. See Fig. 36. (H. G. F. L) SYNS. P. morbillomm, 

 Drynaria Heraclea. 



PIG. 236. POLYPODIUM HERACLEUM. 



P. hcxagonoptcrum (six-angled-winged). rhiz. wide-creeping. 

 sti. 1ft. to lift, long, slender, glossy, stramineous, fronds Sin. 

 to 12in. long, and nearly as broad, deltoid ; lower pinnae 4in. to 

 6in. long, the lowest pair deflexed, often 2in. broad ; pinnules 

 reaching down nearly to the rachis, those of the lower side lin. to 

 liin. long, pinnatifid half way down with broad, blunt lobes ; 

 under side slightly villous. sori marginal. North America, 1811. 

 Hardy. SYN. Phegopteris hexagonoptera. 



P. himalayense (Himalayan), rhiz. wide-creeping, woody, with 

 long, yellowish-brown scales, sti. 6in. to 9in. long, firm, erect, 

 naked, fronds 1ft. to 2ft. long, Sin. to lOin. broad ; pinnae in 

 distant pairs, lin. to Sin. long, liin. to 2in. broad, with an 

 acuminate point, scarious, wavy edges, and the base rounded or 

 cordate ; under surface pubescent, sort in one or two rows, of 

 three or four each, between the main veins, areolce close, fine. 

 North India. SYNS. P. venustum, Phymatodes himalayensis. 



P. incannm (hoary), rhiz. wide-creeping, woody, with dense, 

 dull brown scales, sti. lin. to 4in. long, erect, firm, f urfuraceous. 

 fronds 2in. to 4in. long, lin. to IJin. broad, cut down to the 

 rachis into entire, spreading, somewhat distant pinnae, in. broad, 

 dilated at base ; under side densely scaly, sori uniseriate. Tem- 

 perate America and South Africa, &c., 1840. Greenhouse. SYN. 

 Lepicystis incana. 



P. incuryatum (incurved), rhiz. woody, with adpressed scales. 

 fronds dimorphous ; barren ones 6in. to 9in. each way, deltoid, 

 ternate, or pinnatifid, with broad, lanceolate, acuminate, entire 

 lobes, and a firm, glossy stem, 6in. to 9in. long ; fertile ones larger, 

 cut almost, or below quite, to the rachis into distant, erecto- 

 patent, entire lobes, 4in. to Sin. long, about Jin. broad, the lowest 

 occasionally forked, sori uniseriate, quite immersed, and forming 

 prominent papillae on the upper surface. Malaccas. SYN. Phy- 

 matodes incuroata. 



P. irregulare (irregular). A synonym of P. di/orme. 



P. juglandifolium (Walnut-leaved).* rhiz. woody, stout, with 

 bright ferruginous scales, sti. 1ft. or more long, erect, fronds 

 lift, to 2ft. long, 1ft. or more broad ; pinnae 4in. to Sin. long, lin. 

 to liin. broad, in pairs about 2in. apart, with an acuminate tip, 

 thickened and wavy edges, and a rounded base, sori large, one 

 between each main vein, forming a row nearer the midrib than 

 the edge, areolce copious, hidden. North India. SYNS. P. capi- 

 tellatum, Pleuridium juglandifolium. 



P. lachnopodium (downy-footed), sti. densely hairy at the base 

 (as is also the rachis). fronds 2ft. to 5ft. long, bi-tripinnatifid ; 

 pinnules 9in. to 12in. long, lanceolate. Jamaica, 1843. A rare 

 species in cultivation. 



P. lanceolatum (lance-shaped), rhiz. wide-creeping, wiry, with 

 bright ferruginous scales, sti. lin. to 3in. long, distant, erect. 

 fronds 3in. to 9in. long, about iin. broad, gradually 



Polypodium continued. 



each side, areolae fine, uniform. North India. SYN. Phymatodes 

 leiorhiza. 



P lepidopteris rufulum (scaly-winged, reddish), rhiz. stout, 

 with bright reddish-brown scales, sti. lin. to 4in. long, erect. 

 fronds 6in. to 8in. long, liin. to Sin. broad, 

 cut down to the rachis into horizontal, 

 entire pinnae, lin. broad, blunt, much 

 twisted, the lower gradually reduced. 

 sori copious. Mexico, &c. SYN. P. ru- 

 fulum, 



P. L sepultum (inclosed), fronds ovate- 

 lanceolate ; lower pinnae scarcely reduced. 

 Otherwise similar to P. I. rufulum SYN. 

 P. sepultum. 



P. Lindleyanum (Lindley's). A form 

 of P. palmatum. 



P. lineare (linear), rhiz. woody, wide- 

 creeping, with dull brown scales, sti. 

 from almost none to lin. to 2in. long. 

 fronds 6in. to 12in. long, in. to 2in. broad, 

 entire, narrowed gradually to both ends. 

 sori distinctly immersed, large, pro- 

 minent, forming a single row nearer the 

 midrib than the edge, scaly when young. 

 North India. (H. G. F. 14, under name 

 of Pleopeltis nuda.) In the variety sim- 

 plex, the fronds are sometimes IJft. long 

 and 2in. broad. 



P. Lingua (tongue-like).* rhiz. wide- 

 creeping, with ferruginous scales, sti. 3in. 

 to 6in. long, firm, erect, fronds uniform, 

 4in. to Sin. long, lin. to 4in. broad, the 

 apex often cuspidate, the edge entire, 

 the base narrowed or rounded; lower 

 surface matted with close, cottony, some- 

 what ferruginous down, sori in close rows of four to six each 

 between the main veins, rather large and prominent. North 

 India, Japan, &c. SYN. Niphobolus Lingua. The variety corymbi- 

 ferum has fronds much divided at the apex, forming a cluster. 



both ends ; both sides coated with peltate 



arrowed at 

 les, sori large, im- 



mersed, uniseriate, sometimes reaching from the edge to the mid 

 rib. West Indies, &c., 1812. (H. K. F. 62, under name of Pleo- 

 peltis emifolia.) 



P. leiorhizon (smooth-rhizomed). rhiz. very thick, with adpressed 

 scales, sti. 1ft. to 2ft. long, erect, firm, fronds 2ft. to 4ft. long, 

 1ft. to 2ft. broad ; pinnae narrowed at base, the lower ones stalked, 

 6in. to 12in. long, Jin. to l^in. broad, with an acuminate apex and 

 entire edge, sori slightly immersed, in a row near the midrib on 



FIG. 237. POLYPODIUM LINGUA HKTERACTIS. 



P. L. Heteractis (Heteractis). This form differs from the 

 type in having broader, oblong-lanceolate fronds. Himalayas. 

 See Fig. 237. SYN. Niphobolus latus. 



P. longifolinm (long-fronded). rhiz. short-creeping, woody, 

 with nearly black scales, fronds 1ft. to 2ft. long, Jin. to lm. 

 broad, with an acute apex and an entire, revolute edge, the lower 

 part gradually narrowed into a short stem, sori oblong, im- 

 mersed, in a line near the edge. Malaccas and Philippines, 1819. 



P. longipes (long-stalked). A garden form of P. Phymatodes. 



P. longissimum (very long), rhiz. wide-creeping, with brown, 

 adpressed scales, sti. Sin. to 4in. long, firm, fronds 1ft. to 4ft. 

 long, 6in. to 12in. broad, cut nearly to the rachis into numerous 

 sub-entire, erecto-patent lobes, 4in. to 8in. long, Jin. to iin. broad. 

 sori in close, single rows near the midrib, forming distinct papillae 

 on the upper surface. North India, &c. SYN. Phymatodes 

 lonffissima. 



P. loriceum (armour-clad), rhiz. wide-creeping, stout, with black 

 scales, sti. sometimes ebeneous, 4in. to 6in. long, fronds 1ft. to 

 lift, long, 4in. to 6in. broad ; pinnae close, 2in. to Sin. long, lin. 



