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THE GENEEA AND SPECIES OF CULTIVATED FERNS. 
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\ Phyllitidis, J. Smith. 
1. D.hemionitidea, J. Smith: Wallich (P. membranaceuni, Don.) — A very delicate evergreen stove species, 
from the East Indies. Fronds glabrous, simple, one to two feet long, broadly lanceolate, light green, undu- 
lated, very membranous, attenuated at the base. Sori round, small and irregular. Fronds lateral, articulated 
on a scaly, creeping rhizome. 
2. D. irioidcs, J. Smith : R. Brown. — A glabrous, evergreen, ornamental stove Fern, native of the Mauritius, 
East Indies, and New Holland. Fronds simple, two to three and a half feet long, light green, fleshy, oblong- 
lanceolate, ensiform, attenuated at the base, and often irregularly lobed at the margin. Sori very small (hence 
called Microsorum irregulare by Link), numerous, thickly scattered on the upper half of the frond. Venation 
internal. Fronds lateral, articulated on a scaly, creeping rhizome. 
3. D. crassifolia, J. Smith. — A coarse-growing, glabrous, evergreen, stove species, from Brazil, Peru, and the 
West Indies. Fronds simple, oblong-lanceolate, attenuated at the base, two to three feet long, and three or four 
inches -wide, coriaceous, dull green. Sori large, round, or oval, uniserial between each two of the primary veins, 
Fronds lateral, articulated on a scaly, creeping rhizome. 
? Puvmatodes, J. Smith. 
4. D. pmfulata, J. Smith (P. crespitosum, Link). — A dwarf, glabrous, evergreen, greenhouse Fern, from New 
Zealand. Fronds from a few inches to a foot long, simple or pinnatifid, with lanceolate-acuminate membranous 
pale green segments. Sori round, uniserial, and submarginal. Fronds lateral, articulated on a cajspitose, 
creeping rhizome. 
5. J). Sillardieri, J. Smith : R. Brown (P. scaudens, LabiUardiere). — A creeping, evergreen, greenhouse Fern, 
native of New Holland, New Zealand, and Van Dieman's Land. Fronds glabrous, erect, about a foot high, 
simple or pinnatifid, "with a few linear acuminate segments, coriaceous, deep green, attenuated at the base. Sori 
large, round, uniserial, immersed. Fronds lateral, articulated on a ca;spitose, creeping, scaly rhizome. 
6. D. vulgaris, J. Smith (P. phymatodes, Zinnants). — A beautiful evergreen, glabrous, stove species, native of 
the Mauritius, New Holland, East Indian and Malay Islands. Fronds articulated on a black, scaly, creeping 
rhizome, rather erect, triangularly ovate, pinnatifid, one to one and a half foot long, 
decurrent at the base, light green and shining, with oblong-acute coriaceous segments, four 
to six inches long, the lower one often lobed. Sori round or ovate. There are two forms 
of this species in cultivation. 
7. D. longipes, J. Smith : Link. — A coarse-looking evergreen stove Fern, from the East 
Indies. Fronds glabrous, two to two and a half feet long, pinnatifid, decurrent at the base, 
coriaceous, with three or four large, broad, oblong, acuminate segments, six or eight inches 
long, deep green. Sori large, oblong, biserial, immersed. Rachis and stipes pale green ; 
stipes more than half the length of the frond ; lateral, articulated on a creeping rhizome. 
8. D. mclanococea, Hort. Amsterdam. — A tall slender evergreen stove species, from the 
East Indies. Fronds glabrous, pinnatifid, two to five feet long, almost lanceolate, with 
lanceolate-acuminate, membranous, undulated, distant, pale green segments. Sori large, 
round, uniserial, immersed, forming elevated protuberances on the upper surface of the 
fronds. Fronds lateral, articulated on a scaly, creeping rhizome. 
9. D. capitellata, J. Smith : Wallich (P. juglandifolium, D. Don). — A neat evergreen 
stove Fern, from the East Indies. Fronds glabrous, pinnate, one to one and a half foot 
long, with oblong, ovate, mueronate, cuspidate, membranous pinna;, which are round at the 
base and articulated with the rachis, glaucous, with a thickened white margin. Sori large, 
round, uniserial. Fronds lateral, articulated on a scaly, creeping rhizome. 
10. D. Uiorhiza, J. Smith : Wallich (P. cuspidatum, D. Don). — A very ornamental 
evergreen stove species, a native of Nepal. Fronds glabrous, pinnate, two to three and a 
half feet long, with lanceolate-acuminate bright green pinna\ the inferior ones petiolate, six 
to eight inches long, upper ones adnate and decurrent. Sori round, uniserial, very large. 
Fronds lateral, articulated on a thick, creeping rhizome. 
\ DllYNARIA VEBJSB, Bon/. 
11. D. qacrcifulia, Bory : Linnoms. — An extremely rigid evergreen stove Fern, having 
an extensive geographical range throughout the tropi. s of the eastern hemisphere. Fronds 
of two kinds : sterile — sessile, oblong-ovate, cordate at the base, sinuose or laciniated, with 
the vascular structure rigid, and permanent : fertile — stipitate, piniuitifid, \vi(h linear, 
acuminate, undulated segments, having a thick margin, and articulated with the rachis. 
Sori round, obliquely and rather irregularly disposed throughout the whole under surface 
of tho frond. There aro various well-defined forms of this species distributed throughout 
the Eastern hemisphere, but only two at present in cultivation; the one has cordate, 
ovate, sterile fronds, six inches long, with stipitate fertile fronds, two feet long, generally 
sorifcrous throughout ; tho other has cordate-oblong, rigid, pinnatifid, sterile fronds, three to four feet long, forming 
a noble object, but is without fructification. The rhizomes are thick, scaly, and creeping. 
• The render is requested to transpose this cut with that at page C>2, which represents Dictyinia; the present figure belongs to 
Plucbodium. 
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