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THE GENERA AND SPECIES OF CULTIVATED FERNS. 
317 
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green ; pinna; lanceolate, sub-falcate, petiolulate, deeply pinnatifid, with oblong rather obtuse repand segments, 
lower ones lobed. Sori medial. Stipes and rachis scattered over with small scales. Fronds terminal, adherent 
to a fasciculate tufted rhizome. 
12. L. cristata, Presl (Aspidium, Swartz). — A rather coarse-looking hardy deciduous Fern, indigenous to 
Britain, found more or less throughout Europe and North America. Fronds linear-lanceolate, pinnate, yellowish 
green, one and a half to two feet long ; pinnce triangularly elongate, deeply pinnatifid, somewhat cordate at the 
base, with oblong-ovate obtuse segments, acutely serrate, the lower ones crenately and often deeply lobed. Sori 
medial. Stipes with few broad scales. Fronds terminal, adherent to a short creeping rhizome. 
L. cristata j8, uliginosa (L. uliginosa, Newman). — Fronds lanceolate, two feet long, light green, sub-bipinnate; 
pinnas triangularly elongate, deeply pinnatifid, segments oblong-ovate, obtuse, inciso-serrate, with mueronate 
teeth. Rachis and stipes scaly ; terminal, adherent to a short somewhat creeping rhizome. 
13. L. lancastriense, J. H. (Aspidium, Sprengel). — A hardy deciduous Fern, from North America. Fronds 
narrow, lanceolate, pinnate, one to two feet high, yellowish green ; pinna; triangularly elongate, petiolate, deeply 
pinnatifid, lower ones cordate at the base, with oblong-obtuse dentate segments, largest next the rachis. Stipes 
scaly, terminal, adherent to a tufted rhizome. This plant appears to be only a form of our indigenous L. cristata. 
14. L. Filix-mas, Presl (Aspidium, Swartz ; Dryopteris Filix-mas, Schott). — A handsome hardy deciduous Fern 
indigenous to Britain, and throughout Europe, Asia, Africa, and North America. Fronds broadly lanceolate, 
sub-bipinnate, deep green, from two to three feet high ; pinnce linear-lanceolate ; pinnules oblong-obtuse, the 
basal ones more or less distinct, upper ones confluent, crenato-serrate on the margin. Sori medial. Fronds 
terminal, adherent to a short tufted rhizome, forming large scaly crowns. Of this, one of the commonest of our 
native Ferns, there are two or three rather interesting varieties. 
L. Filix-mas ,6, incisa. — A robust growing variety. Fronds lanceolate-bipinnate, three to four feet long ; 
pinnules elongate, narrowed to the apex, inciso-serrate, the lobes rather sharply toothed. 
L. Filix-mas y, cristata. — This is one of the most beautiful Ferns in cultivation. Fronds ovate or oblong- 
lanceolate, about two feet long, semi-erect, bright green ; pinna; narrow-elongate, pinnatifid. The apex of the 
frond, and also that of every pinna, expands into a compact tasselled tuft, similar to that produced by the multifid 
variety of Scolopenclrium vulgare. Sori confined to the upper half of the frond. Rachis and stipes covered with 
brown chaffy scales. Fronds terminal, adherent to a tufted rhizome. This very elegant Fern, which has been 
known but a few years, is exceedingly rare in cultivation. It was found in Cornwall. 
15. L. Gokliana, Presl (Aspidium, Hooker ; Nephrodium, Hooker ct Grcville). — A hardy deciduous Fern, from 
North America. Fronds broadly lanceolate, one and a half to two feet high, yellowish green, sub-bipinnate ; 
pinnte broadly-lanceolate, deeply pinnatifid ; pinnules linear oblong, rather obtuse at the apex, basal ones distant, 
upper ones confluent, crcnate, serrate, or slightly lobed on the margin. Sori medial. Stipes and rachis scaly. 
Fronds terminal, adherent round the crown of a tufted rhizome. 
16. L. marginalia, Presl (Aspidium, Swartz). — A very handsome hardy Fern, from North America. Fronds 
lanceolate, bipinnate, one and a half to two feet long, bluish green ; pinnte oblong-acuminate ; pinnules oblong- 
ovate, obtuse, largest next the rachis, and crenate on the margin. Sori marginal. Eachis and stipes paleaceous. 
Fronds terminal, adherent to a tufted rhizome, forming large crowns. 
17. Z. acuminata, J. II. — An evergreen warm greenhouse Fern, the native country of which is doubtful; 
probably from Nepal. Frond glabrous, triangularly elongate, bipinnate, a foot or more long, dull green ; pinna) 
triangularly elongate- acuminate; pinnules oblong-ovate, lower ones entire, and slightly pinnatifid, upper ones 
decurrent at the base, and rather rigidly toothed. Sori medial. Stipes scaly at the base ; terminal, adherent to 
a somewhat tufted rhizome. 
18. L. eburnea, J. Smith (Aspidium, Wallich; Polypodium oxyphyllum, Wallich). — A rather rigid evergreen 
stove Fern, from Nepal. Fronds glabrous, broadly lanceolate, bipinnate, one and a half foot long, very dull 
green; pinna; triangularly elongate; pinnules obiong-acute, pinnatifid, lower ones entire, upper confluent, with 
rather rigid dentate or bidentate segments. Sori medial. Indusium very small, and soon obliterated by the 
swelling sori. Eachis and stipes of a brownish red, with scales at the base ; terminal, adherent to a scaly creeping 
rhizome. 
19. L. rigida, Presl (Aspidium, Swartz). — A neat hardy deciduous Fern, indigenous to Britain, said to be found 
also in various parts of Europe and Siberia. Fronds glandulose, narrow-lanceolate, bipinnate, one to one and a 
half foot long, deepish green; pinnules oblong-linear, obtuse, slightly pinnatifid, with rounded broad segments, 
dentate, without spinulose points to the teeth. Sori medial ; indusium fringed with stalked glands. Eachis and 
stipes chaffy ; terminal, adherent to a tutted rhizome. 
20. L. elongata, Presl (Aspidium, Swartz). — An ornamental, evergreen, warm greenhouse species, a native of 
the Canary Islands, Madeira, Azores, &c. Fronds glabrous, triangularly elongate, two to three feet long, deep 
green, sub-tripinnate ; pinnro triangularly elongate, especially below; pinnules oblong-acute, or obtuse, with 
slightly dentate blunt segments. Sori medial. Stipes paleaceous; terminal, adln rent to a thick short creeping 
rhizome. 
21. L. spinulosa, Presl (Aspidium, Swartz ; not A. spiuulosum, Villdenow ; L. spinosa, Newtnan), — An elegant 
hardy deciduous Fern, indigenous to Britain, and dispersed over the whole of Europe. Fronds erect, narrow 
ovate-lanceolate, the margins nearly parallel below, glabrous, bipinnate, one to three feet high, pale yellowish 
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