134 



THE DICTIONARY OF GARDENING, 



Asplenium continued. 



down into spathulato-cuneate pinnules, which are serrated round 

 the outer edge, sort copious. Great Britain, and almost world- 

 wide in its distribution. Hardy species. This requires a well- 

 drained position, and a soil composed mainly of old mortar 

 rubbish. 



A. salicifolium (Willow-leaved), sti. tufted, 6in. to 12in. long. 

 fronds 12in. to 18in. long, 6in. to 9in. broad, oblong, with a 

 terminal pinna and four to ten distinctly stalked ones on each 

 side, whicn are 4in. to 6in. long, Jin. to lin. broad, acuminate ; 

 edge usually entire, the base equally truncato-cuneate on both 

 sides, tori falling short both of the edge and midrib. West 

 Indies, &c. Stove species. 



A. Sandersolii (Sanderson's).* sti. tufted, lin. to 2in. long, frond* 

 bin. to 9in. long, iin. to Jin. broad, linear, often gemmiferous at 

 the apex, with twelve to twenty horizontal dimidiate pinnae on 

 each side, which are deeply crenate on the upper edge, and at the 

 base narrowed suddenly into a winged petiole, trie lower one 

 nearly straight and quite entire, tori oblong. Natal, &c. A 

 very rare greenhouse species. 



A. schizodon (cut-toothed). Synonymous with A. Vieillardii. 



A. Schkuhrtl (Schkuhr's). eau. erect, sti. 1ft. to lift. long. 

 fronds deltoid, lift, to 2ft. long, tripinnatifld ; lower pinnae 

 distant, oblong-lanceolate, 6in. to 8in. long, liin. to 2in. broad, 

 rachis winged to base ; pinnules ligulate-oblong, fin. broad, 

 sessile, cut into shallow, close, oblong blunt lobes, sori \in., 

 medial in a single row in the pinnules. Ceylon. Stove species. 

 SYN. Dipiazium Schkuhrii. 



A. Selosii (Selose's).* sti. densely tufted, lin. to 2in. long, wiry. 

 fronds iin. to Jin. long, palmately cleft, usually into three nearly 

 equal forks, which are about one line broad, the ' 



inciso-serrate. sori copious, ultimately occupying the whole 

 surface. Tyrol and Carinthia. A very rare and curious little 

 species, requiring the protection of the frame or cool house ; it 

 should be firmly potted between pieces of sandstone in loam, 

 leaf-soil, rock chippings and sand, with good drainage. 



A. septentrionale (northern).* sti. densely tufted, Sin. to 4in. 

 long, fronds simple, or cleft from the apex into two or three 

 cuneate divisions, lin. to IJin. long, one line broad, with a few 

 sharp lateral and terminal teeth, sori elongated, copious, often 

 at last hiding the whole under surface. Great Britain, and 

 widely distributed in both hemispheres. This rare little species 

 requires to be securely planted in a well-drained elevated chink 

 of the fernery outside, in loamy, gritty soil. 



A. Shepherd! (Shepherd's).* sti. tufted, 1ft. long, fronds 12in. to 

 18in. long, 6in. to Sin. broad ; lower pinnfe stalked, 4in. to 6in. 

 long, lin. to liin. broad, point acuminate, edge lobed above, }in. 

 broad, somewhat toothed, sori linear, not reaching the edge. 

 South America. Stove species. SYN . Dipiazium Shepherdi. 



A. S. inceqtiilaterum (unequal-sided), fronds, texture firm, colour 

 duller than that of the type; pinnae much acuminated; the lobes 

 deeper, more uniform, and falcate, the two sides unequal, the 

 lower one uneqnally truncate at the base. 



A. spathulinum (spathulate). A synonym of A. afflne. 



A. spinulosum (very spiny).* sti. 6in. to 12in. long, scattered. 

 fronds 9in. to 12in. each way, deltoid, tri- or quadripinnatifid, with 

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

 to 9in. long, 2iin. to 3in. broad, ovate-lanceolate ; pinnules lanceo- 

 late, cut down to the rachis on each side into six to nine oblong- 

 rhomboidal mucronate segments, two lines lone, one line broad, 

 which are sharply toothed, sori two to ten to a segment, usually 

 round, but occasionally oblong. Amur-land, &c. Greenhouse 

 species. SYN. Athyrium spinulosum and Cystopteris spinulosa. 



A. splcndens (splendid), rhiz. creeping, scaly, sti. bin. to Sin. 

 fronds deltoid, 6in. to 1ft. long, two to three-pinnate ; lower 

 . to 2in. bro " 



pinnae stalked, deltoid, lin. 



broad, pinnate or bipinnate ; 



egments cuneate-flabellate, lin. to iin. broad, slightly lobed, 

 sharply toothed round outer edge, sori copious, slender, irregular, 

 reaching from base nearly to tip of segments. Cape Colony. A 

 very rare greenhouse species. 



A. subsinnatum (half -waved). Synonymous with A. lanceum. 



A. sundense (Sundanese). Synonymous with A. vittceforme. 



A. sylvatictun (woods), cau. decumbent, sti. 1ft. long, fronds 

 1ft. to 2ft. long, 4in. to Sin. broad, ovate-lanceolate, with numerous 

 spreading pinnae, the largest 3in. to 4in. long, iin. to Jin. broad, 

 acuminated ; edge broadly and briefly lobed ; base narrowed 

 suddenly on both sides, sort in long slender lines, reaching 

 nearly to the edge. India, &c. Stove species. 



A. thelypteroides ; (Thelypteris-like). sti. 1ft. long, frondslft. to 

 2ft. long, 6m. to 12in. broad, lanceolate, with numerous spreading 

 pinnae, the lower ones 4in. to 6in. long, lin. broad, cut down to a 

 broadly-winged rachis into numerous nearly entire elliptical 

 spreading pinnules, sori in close regular rows, reaching nearly 

 from the midrib to the edge, slightly curved, the lower ones often 

 double. North America, &c., 1823. Hardy or cool house species. 

 SYN. Athyrium thelypteroides. 



A. Thwaitesii (Thwaites's).* rhiz. wide-creeping, stout, sti. 6in 



vhite w 



long, slender, densely clothed with strong 



oolly hairs. 



fronds 1ft. or more long, 4in. to 6in. broad, with eight to ten 

 distinct pinnae beneath the pinnatifld apex, the largest 3in. long, 

 |in. broad, cut down two-thirds of the way to the rachis in oblong 



crenulated lobes, Jin. deep, t 



way to the rachis in oblong 

 lines across, snri reaching half- 



Asplenitun continued. 



way to the edge, the lowest about one line long. Ceylon, 

 fine stove species. SYN. Dipiazium, Thwaiterii. 



Very 



FIG. 174. ASPLENIUM TRICHOMANES. 



A. Trichomanes (maiden-hair).* Maidenhair Spleenwort. sti. 

 densely tufted, lin. to 4in. long, fronds 6in. to 12in. long, about 

 iin. broad, with fifteen to thirty opposite pairs of sessile horizontal 

 pinnje, which are Jin. to fin. broad, one and a-half to two lines 

 deep, edge slightly crenate, the two sides unequal, the upper 

 one the broadest, and narrowed suddenly at the base, sori linear- 

 oblong, three to six on each side of the midrib. Great Britain, 

 and almost cosmopolitan. Hardy species. See Fig. 174. There 

 are several varieties in cultivation, of which the following are the 

 most important : 



Fio. 175. ASPLENIUM TRICHOMANES CRISTATUM. 



A. T. oristatum (crested). * fronds 4in. to 6in. long, simply pinnate, 

 with roundish pinnae, and broad crests at their extremities, some- 

 times divided, each fork crested. A very pretty little variety, 

 requiring frame or greenhouse treatment. See Fig. 175. 



A. T. incisum (deeply-cut).* fronds 3in. to 6in. long ; pinnae deeply 

 pinnatifld, the lobes again deeply cut or serrated. A very rare 

 and pretty form. 



A. T. multifidum (much-divided).* fronds Sin. to 6in. long, 

 twice, thrice, or, rarely, quadri-furcate, each division termi 

 with a little crest. A free-growing kind. 



A.T. ramosum (branched).* fronds bin. to Sin. long, freely 

 branched, each division being again forked; pinnae deeply cut or 

 crenated, or serrate. More hardy than any of the other forms. 



A. trilobnm (three-lobed).* sti. tufted, 2in. to Sin. long, fronds 

 lin. to liin. long, lin. broad, rhomboidal, apex acute, base 

 cuneate, entire, the margin undulato-crenate, or the lower part 

 deeply lobed, with broad mciso-crenate divisions, sori broad and 

 short. Chili and South Brazil. A very rare little stove species. 

 SYN. A. parvulum, 



A. nmbrosum (shady), sti. 1ft. or more long, scaly at the base. 

 fronds 2ft. to 5ft. long, 12in. to 18in. broad, ovate-deltoid ; pinnae 

 ovate-lanceolate, 6in. to 9in. long, Sin. to 6in. broad, with laceolate 

 pinnules, which are again cut down to the midribs into unequal- 

 sided rhomboidal lobes, with the margins sharply crenated. 

 sori copious, oblong, with large tumid membranous involucres. 

 Madeira, Canaries, Himalayas, &c. Very widely distributed. 

 A very handsome greenhouse species. SYNS. Allantodia australe, 

 Athyrium umbrosum. 



A. various (variable), sti tufted, lin. to Sin. long, fronds 4in. 

 to 6in. long, lin. broad, oblong-lanceolate, with eight to twelve 



