194 



THE DICTIONARY OF GARDENING, 



Polypodium continued. 



P. stegnogrammoldes (Stegnogramma-like). can. sub-arbo- 

 rescent, sti. lift, to 2ft. long, erect, firm pubescent upwards. 

 fronds 2ft. to 3ft. long, 1ft. or more broad ; pinnae 6m. to 9m. 

 'long, liin. broad, the edge bluntly lobed about a quarter the way 

 down, the apex acuminate ; rachis and veins beneath slightly 

 huiry. sori in rows near the midrib. Sandwich Isles. STUB. 

 P. sandvieense, Goniopteris steynogrammoides. 



P. stigmatlcnm (dotted), rhiz. slender, wide-creeping, fibril- 

 lose, fronds sub-sessile, 4in. to 5in. long, iin. to Jin. broad, 

 entire, gradually narrowed towards both ends, both sides naked. 

 sori uniserial. areolce fine, copious, with distinct, free vemlets. 

 Columbia. See Fig. 243. SYN. Anapeltis venosa. 



P. Stigmosum (dotted), rhiz. short-creeping, with ferruginous 

 scales, sti. somewhat tufted, firm, erect, lin. to 6in. long. 

 fronds lift, to 2ft. long, lin. to 3in. broad, the lower part 

 gradually narrowed, the apex acuminate, the edge entire ; lower 

 surface tomentose. sori very small, in several rows between the 

 transverse veinlets, continuous, occasionally covering the whole 

 frond except the base. North India, &c., 1823. SYN. Niphobolus 

 eostatus. 



P. subauriculatum (slightly-eared), rhiz. wide-creeping, with 

 dull brown scales, sti. firm, erect, 6in. to 12in. long, naked, 

 glossy, fronds 2ft. to 3ft. long, 8in. to 12in. broad, decurved, 

 oblong-lanceolate; pinnae 4in. to 6in. long, iin. to lin. broad, 

 sessile, the base rounded or auricled, the edge slightly toothed or 

 entire, sori distinctly immersed, uniserial. areolce in two or three 

 rows. Himalayas, Ac. SYN. Sehellolepis subauriculata. The variety 

 Reiniaardtii is crenate instead of dentate. 



P. subfalcatum (slightly sickle-shaped), sti. less than lin. long, 

 hairy, densely tufted, fronds 6in. to 9in. long, lin. to liin. broad ; 

 pinnae close, spreading, toothed one-third to half way down, de- 

 current at base, the lower ones gradually reduced ; both surfaces 

 slightly villous. sori in rows, one to each tooth. Malay Isles, 



P. subpetiolatnm (shortly-stalked), rhiz. wide-creeping, stout, 

 with ferruginous scales, sti. 4in. to 6in. long, stramineous, firm. 

 fronds 1ft. or more long, 6in. to Sin. broad ; pinnae Sin. to 4in. 

 long, iin. broad, with a slightly crenate edge and a blunt point, 

 the lower ones rounded at base, sub-petiolate ; rachis and both 

 surfaces finely villous. sori in rows nearer the midrib than the 

 edge. Mexico, &c., 1845. P. biserratum is, acconlin<: to Mr. 

 Baker, merely a form of this species, with much more elongated 

 fronds, more numerous pinnae, and more distant sori. 



P. surrucuchense (Surruchu). rhiz. stout, densely grey-scaly. 

 sti. firm, Lin. to 12in. long, glossy, fronds 1ft. to 2ft. long, Sin. to 

 12in. broad; pinnae 4in. to 6in. long, about iin. broad, erecto- 

 patent, numerous, the base sub-cuneate, the edge entire, sori 

 prominent, in a single series with the areolae. West Indies to 

 Ecuador. SYN. Gonwphlebium surrucuchense. 



P. Swartzii (Swartz's). rhiz. 



ginous scales, sti. slender, iin. to lin. D 



4in. long, iin. to lin. broad, nearly or quite uniform, gradually 

 narrowed to both ends, with a slightly lobed or entire edge, sori 

 uniserial on free veinlets. areolce fine, copious, irregular. West 

 Indies and Cayenne. SYNS. P. gerpens, Anapeltis serpen 



ender, wide-creeping, with ferru- 

 o lin. long, naked, fronds 2in. to 



FIG. 244. RHIZOME OF POLYPODIUM FILIPES, WITH FRONDS. 



P. tenelluHL (tender), rhiz. woody, wide-creeping, scaly when 

 young, sti. firm, 2in. to Sin. long, nearly naked, jointed near the 

 base, fronds 1ft. to 2ft. or more long, 2in. to 4in. broad, pendent ; 

 pinnae 2in. to Sin. long, iin. broad, entire or obscurely crenated, 

 narrowed towards both ends, sori in rows near the edge. 

 Australia, &c., 1823. Greenhouse. SYN. Arthopteris tenetta 

 P. Filipes is a young state of this species. See Fig. 244. 



P. tenulfolium (slender-fronded). rhiz. stout, with reddish- 

 brown, fibrillose scales, sti. slender, erect, 2in. to Sin. long. 

 fronds Sin. to 12in. long, liin. to 2in. broad, cut to the rachis 

 pinnae distant, entire or slightly crenated, linear, blunt, sori 

 slightly immersed, in two rows of six to ten each to a pinna. 

 SYN. P. Otites. 



Polypodium continued. 



P. terminate (terminal). A garden form of P. Phymatodeg. 



P. tetragonum (four-angled). A synonym of P. androgynum. 



P. thyssanolcpis (fringed-scaled). rhiz. ^in. long, firm, slender, 

 wide-creeping, with dense, pale brown scales, sti. erect, Sin. to 

 12in. long, stiff, scaly, fronds Sin. to 9in. long, 2in. to 4in. broad, 

 lanceolate, simply pinnate ; pinnae Jin. to iin. broad, blunt, entire, 

 distant, ligulate, ascending, all except lowest (which are not re- 

 duced) dilated at base ; lower surface densely clothed with 

 minute, ciliated, brown, lepidote (scales, sori and areolce uni- 

 seriate. Mexico to Peru. SYN. Goniophlebium thyssanolepis. 



P. trichodes (hair-like), sti. scaly at base, and hirsute, fronds 

 1ft. to 4ft. or more Ions, bi-tripinnate ; segments finely divided, 

 covered with minute, white hairs. East Indies, 1840. Greenhouse. 

 SYN. Pheyopteris trichodes. 



P. trichomanoides (Trichomanes - like). sti. short, densely 

 tufted, deciduously hairy, fronds Sin. to 6in. long, about iin. 

 broad, cut to the rachis ; pinnae less than one line broad, close, 

 linear-oblong, blunt ; surfaces sometimes hairy, sori one in each 

 pinna, near the base. West Indies, &c., 1822. 



P. trifldum (thrice-cut), rhiz. stout, with bright ferruginous 

 scales. />ti. Sin. to 6in. long, firm, erect, glossy, fronds oin. to 

 12in. long, 6in. to Sin. broad, with a large, linear, terminal lobe, 

 and one to five similar ones on each side, which reach down 

 within Jin. of the rachis, and are 4in. to 6in. long, iin. to IJin. 

 broad, narrowed to the point, the edge obscurely repand or 

 entire, sori uniseriate, and one only between each main vein. 

 areolce copious, between the transverse veinlets. India, &c. 

 SYNS. P. oxylobum, Pleuridium oxylobum. 



P. tiifurcatnm (thrice-forked), rhiz. creeping, stout, densely 

 scaly, sti. Sin. to 5in. long, close, villous, frequently bent. 

 fronds (tin. to 9in. long, lin. or more broad, with blunt, entire, 

 broad lobes reaching from one-third to half way down, sori 

 copious, mainly in two rows in each lobe, immersed. West Indies 

 to Peru, 1820. 



P. trlanetrnm (three-sided), rhiz. woody, stout, with dense, 

 almost scarious scales, sti. 4in. to Sin. long, distant, firm, erect. 

 fronds, barren ones 6in. to 9in. long, 2in. to Sin. broad, with 

 an entire edge, and an acuminate apex ; fertile ones rather 

 narrower and longer, sori in two close rows between the main 

 veins, five to eight between the midrib and edge, not immersed. 

 Java. SYN. Pleuridium triquetrum. 



P. unidentatum (once- toothed), sti. 1ft. long, tufted, with 

 dark brown scales, fronds 2ft. to 3ft. long, 1ft. or more broad, 

 deltoid ; lower pinnae largest, deltoid, 6in. to 9in. long, 4in. to 

 5in. broad; pinnules lanceolate, the lower segments distinct, 

 ovate-oblong, deeply pinnatifid, with slightly-toothed lobes, sori 

 sub-marginal. Sandwich Isles. This species is rather rare in 

 cultivation. SYN. Phegopteris unidentata. 



FIG. 245. CREEPING RHIZOME OP POLYPODIUM VACCINIIFOLIUM. 



P. vacciniifolium (Whortleberry-leaved).* rhiz. very wide-creep- 

 ing, slender, clothed with grey or ferruginous scales, fronds 

 dimorphous, almost sessile, entire ; barren ones lin. to 2in. long, 

 Jin. to iin. broad, roundish or elliptical, obtuse ; fertile ones 

 linear or ligulate. sori large, uniseriate. Jamaica to Paraguay. 

 See Fig. 245. SYN. Lopholepis vaccinifolia. 



P. vacillans (changing). A synonym of P. loriceum lalipe*. 



