An Encyclopedia of Horticulture. 



129 



Aspleuliun — co7itinued. 



or more long ; pinnules lanceolate, distant, 2in. to 3in. lonp, and 

 liin. broad ; segments lanceolate, ^in. Innj;, two lines broad, 

 deeply and sharply toothed, sori small, six to twelve to a seg- 

 ment, in two rows near the midrib, the lower ones curved, often 

 double. Jamaica, &c. Stove species. Syn. Athyriwm breviaorum. 



A. bnlbifenun (bulb -bearing), sti. tufted, 6in. to 12in. long. 

 /roiids 1ft. to 2ft. long. Sin. to 12in, broad, dblong-deltoid, with 

 numerous horizontal pinna? on each aide, which are often pro- 

 liferous from the upper surface, the largest 4in. to 8in. long, l^in. 

 to 2in. broad ; pinnules lanceolate-deltoid, slightly toothed, mri 

 oblong, when mature often filling the whole breadth of the seg- 

 ments. New Zealand, Ac, very widely distributed. Greenhouse 

 species. 



A. b. Fabianuni (Fabia's). Lower segments deeply pinnatifid, 

 with nairow divisions and sub-marginal sori. Syn. .^4. Fabxaniim. 



A. b. laxum (loose). Habit more slender; segments narrow, 

 .so that the snri are often as if marginal. 



A. caudatnzn (tailed). Pndiably a form of A. falcatum, but 

 having tlie s<iri more confined to tlie centre of the pinna-, being 

 often restricted to two parallel rows close to the rachis. Poly- 

 nesia, &.Q. Greenhouse species. 



Fig. 170. Asplenium Ceteracii. 



A. Ceterach,.* Scale or Scaly Fern. sti. densely tufted, lin. U\ 

 3iii. long, scaly. fromU 4in. to 6in. long, .^in. to lin. broad, cut 

 down nearly or quite to the rachis into alternate, blunt, sub- 

 entire, broadly-oblong or roundish pinna?, with a rounded sinus 

 between them ; upper surface naked, lower densely clothed with 

 tleep brown membranous scales, aori linear oblique. Britain, 

 throughout Europe, Northern Asia, »fec. This is a variable species, 

 but the forms do not remain constant under cidtivation. It should 

 be tinuly planted in a vertical chink of the rockery in loam, lime 

 rubbisii, rock cliippings, and sand, and be watered freely during 

 the ^summer. Syn. Ceterach ojjicinarum. See Fig. 170. 

 A. C, aureum (golden).* A large variety, producing fronds from 

 9in. to 15in. long, l^in. to Sin. broad, and pinna* more oblong 

 than the type ; scales toothed. Canaries and Madeira. This is a 

 charming fern, requiring greenhouse treatment. Syn. Ceterach 

 aureum. 

 A. cicntariTUn (Cicuta-leaved).* sti. tufted, 4in. to Sin. long. 

 jronds 6in. to 15in. lon]g, 4in. to 6in. broad, tripinnate, with ten 

 to fifteen horizontal pinnas on each side, the lower ones 2in. to 

 3in. long, lin. broad, cut down to the rachis into numerous ovate- 

 rhomboidal pinnules, which are |in. to ^in. long, Jin. broad, 

 obliquely-tnnicate on the lower side ; segments once or twice 

 cleft at the apex, sori principally in two rows along the pinnules. 

 Tropical America, &c. Stove species. 

 A. Colensoi (Colenso's). sd. tufted, Sin. to 4in. long, fronds 6in. 

 to 9in. long, 2in. to 4in. broad, tripinnatifid, with numerous rather 

 rigid erecto-patent pinna% the lower on stalks ^in. to ^in. long ; 

 lower pinnules spreading, deeply inciso-pinnatifid, with linear 

 segments, .sori oblong, solitary. New Zealand. A beautiful 

 greenhouse species. Syn. A. Hooker ianiun. 

 A. compressnin (compressed), sti. tufted, 6in. to Sin. long. 

 jroiuls 2ft. to 3ft. long. Sin. to 12in. broad, simply pinnate, lanceo- 

 late-oblong, witli ten to twenty sessile pinnae on each side, which 

 are 4in. to bin. long, about lin. broad, acute or bluntish at the 



{Joint, edge slightly dentate, the upper ones decurrent at tlie 

 lase upon the stout fleshy compressed rachis, the upper side 

 narrowed suddenly at about a right angle, the lower one obliquely 

 truncate, sori broad, distant, not reaching either the midrib or 

 edge. St. Helena. Stove or greenhouse species. 

 A. contigilUlll(contig\ious). sti. tufted, 6in. to 9in. long, fronds 

 12in. to 18in. hmg, 4in. to 6in. broad, with twenty to thirty hori-- 

 zontal sub-falciite pinna'^ on each side, which are acumuiated at 

 the apex ;edge more or li'ss seriated, the base narrowed suddeiUy, 

 and sometimes auricled on the upper, obliquely truncate in a 

 curve on the lower side, sort close, copious, falling considerably 

 short of the margin Sandwich Isles. Greenhouse species. 



Asplenixun— continued. 



A. crenatum (crenated).* sti. 6in. to 12in. long, scattered, fronds 

 9in. to 15in. each way, deltoid, tri- or quadripinnate, with nine to 

 twelve pinnre on each side, the lowest much the largest, 6in. to 

 9in. long, lAin. to 2in. broad ; pinnules lanceolate, cut ao^vn to the 

 rachis except towards the point on each side into four to six 

 blunt oblong segments, two lines long, one line broad, which are 

 bluntly toothed, sori two to six to a segment, oblong, usually 

 nearly straight, often double. Scandinavia, &c. Hardy species. 



A. cultrifolium (hook-leaved).* sti. 4in. to 6in. long. frond,<s 6in. 

 to 12in. long, 4in. to 6in. broad, bipinnate, deltoid-ovate, with a 

 lobed terminal point and six to ten pinn;e on each side, which are 

 Sin. to 4in. long, ^m. to |in. broad, acute; edge broadly toothed, 

 sometimes lobed below nearly or quite to the rachis, the base 

 nearly at a right angle on tlie upper, but obliquely truncate 

 on the lower side. sori falling short both of tlie edge and 

 midrib. West Indies, 1820. Stove species. Syn. Diplaziuin 

 cidtrifolium. 



A, cuneatum (wedge-shaped), sti. tufted, 6in. to 9in. long. 

 fronds 6in. to 15in. long, 6in. to 9in. broad, tri])innatifid, narrow- 

 <leltuid, with numerous spreading pinna; on each side, the lower 

 Sin. to 4in. long, lin. to liin. broad, lanceolate-deltoid, cut down 

 to the rachis into several distinct ovate-cuneate pinnules, which 

 are dentate and cut down in the lower part nearly or quite to the 

 rachis. sori linear, sub-tlabellate. West Indies, and ^videly dis- 

 tributed in both hemispheres, 1832. A very handsome stove 

 species. 



A, Dalhonsl^e (Dalhouse's). Synonymous with A. altcrnans. 



A. decussatum (decussate), sti. 1ft. to 2ft. long, fronds 2ft. to 

 4ft. long, simply pinnate, with numerous pinupe on each side, 

 which are 6in. to 12in. long, lin. to 2in. broad, often proliferous 

 in the axils ; edge nearly entire, sori reaching nearly to the edge, 

 and copiously double. Polynesian and Malayan Islands, &c. 

 Stove species. Syn. Anisogoniiun dccKssatum. 



A. dentatam (dentated).* sti. tufted, 2in. to 6in. long, fertile 

 jriiinh 2in. to 3in. long, lin. broad, with six to eight pairs of 

 stalked, sub-opposite pinnre, which are i^m. broad, iin. deep, 

 oblong-rliomboidal, the lower side at the base truncate in a curve, 

 the outer edge irregularly crenate. sterile fronds smaller, on 

 shorter stalks, sori copious, in two parallel rows. AVest Indies, 

 Ac, 1820. A pretty little gi-eenhouse species. 



A. dimidiatuin (unequal-sided).* sti. tufted, 6in. to 12in. long. 

 fronds bin. to loin, long, 4in. to bin. broad, deltoid, simjtly 

 pinnate, with six to nine opposite pairs of pinna", which are 2in. 

 to Sin. long, Jin. to lin. broad, acuminated, sharply serrated, sort 

 radiant, narrow, long linear. Tropical America. Stove species. 



A. dimorphum (two-formed).* sti. tufted, bin. to 12in. long. 

 fronds 2ft. to 5ft. long, 12in. to 15in. broad, ovate-deltoid, sterile 

 and fertile ones different or combined ; lower pinna; ovate-deltoici, 

 bin. to Sin. long, 2in. broad, bluntly toothed, and the base on 

 the lower side obliquely truncate ; fertile pinnre the same size, but 

 with very narrow simple or forked pinnides. sori linear, solitary, 

 marginal. Norfolk Island. One of the handsomest warm green- 

 house species. Syns. A. diversifolinm (of gardens), and Darea 

 diinorpha. 



A. diplazioides (Diplazium-like). A synonym of A. Amottii. 



A. diversifolium (diverse-leaved). A garden synonym of A. 

 duniirpfnnn. 



A. diversifolium (diverse-leaved). Synonymous with A. inaxi- 

 viuin. 



A. ebeneum (ebony-stalked).* sti. tufted, Sin. to bin. long, fronds 

 i2in. to ISin. long,"2in. to Sin. broad, linear-lanceolate, with twenty 

 to forty sessile pinnie on each side, which are about lin. long, 

 ^in. broad; point acute or bluntish; edge faintly serrate; base 

 hastately auricled, often cordate, sori ten to twelve on each 

 side, oblong, short. Canada, &c., widely distributed, 1779. Green- 

 house species. A. ebenoides is very like this, but the pinnre are 

 not cut down to the rachis, and the frond has an elongated 

 point, which is only sinuated with a single row of sori on 

 each side. 



A* erectum (erect). Synonymous with A. lumdatum. 



A. erosum (bitten), sti. tufted, bin. to 9in. long, fronds bin. to 

 12in. long, 4in. to Sin. broad, deltoid, with nine to fifteen pinnie 

 on each side, which are Sin. to 4in. long, iin. to ^in. broad, the 

 edge slightly lobed and crenato -dentate, the point acuminate, 

 the two sides unequal, sori falling short of the edge. West 

 Indies. Stove species. 



A. esculentum (edible).* can. sub-arborescent, sti. 1ft. to 2ft. 

 long, fronds 4ft. to bft. long, pinnate or bipinnate ; lower pinn?e 

 12in. to 18iu. long, bin. to Sin. broad ; pinnules Sin. to bin. long, 

 about lin. broad, acuminate ; edge more or less deeply lobed ; base 

 narrowed suddenly, often auricled ; lines of sori often on all tlie 

 lateral veinlets. India, &c., 1822. Stove species. Syn. Aniso- 

 gonium esculentum. 



A. extensnm (extended), sti. tufted, 4in. to bin. long, fronds 

 12in. to24in. long, about lin. broad, with twenty to forty sessile 

 pinuje on each side, which are ^in, long, Jin. to fjin. deep, blunt 

 and entire, the upper side rather the broadest and often cordate, 

 the lower merely rounded at the base, sori linear-oblong, two 

 or three on each side uf the nuiirib. Andes of Columbia and 

 Peru. A very rare greenhouse species, allied to our native A. 

 l^richomanc^. 



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