THE GENERA AND SPECIES OF CULTIVATED FERNS. 
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pctiolatc, linear-acuminate, about one inch broad and eighteen long. Sori linear, continuous. Raehis and stipes 
pubescent, lateral, adherent to a scaly creeping rhizome. 
2. L. denticulata, Presl : Swartz.— An evergreen stove Fern, from Brazil. Fronds glabrous, triangular, from 
one to one and a half foot high ; lower branches sub-pinnate, with the inferior segments bipartite ; upper part 
pinnate, with the inferior segments divided ; sterile pinna; broad, oblong, acuminate, dull green, decurrent at the 
base, serrate at the margin, with spinulose teeth. Fertile fronds erect, of the same form as the sterile ones, 
terminal, adherent to a fasciculate rhizome. Sori linear, continuous. 
3. L. leptophijlla, J. Smith : Swartz (Pteris spinulosa, Maddt).— An ornamental evergreen stove species, from 
Brazil. Sterile fronds glabrous, triangular, bipinnatifid, tripinnatifid below, one foot long, with linear acuminate, 
light green pinna?, decurrent at the base, and serrate at the margin, with long spinulose teeth. Fertile fronds 
glabrous, erect, triangular, two feet high, bi-tripinnate, with linear narrow acuminate distant segments, serrate 
at the apex. Sori linear, continuous. Fronds terminal, adherent to a fasciculate rhizome. 
i. L. polita, 3. Smith : Link.— An ornamental evergreen stove Fern, from Brazil. Fronds glabrous, deltoid, 
sub-tripinnatifid, three to four feet high, of a bright green ; pinnae oblong-linear, acuminate ; segments oblong- 
obtuse and serrate at the apex. Sori linear, continuous. Stipes scaly at the base, terminal, adherent to a creep- 
ing rhizome. 
5. L. vespertilionis, J. Smith: Labillardiere. — A free-growing evergreen greenhouse Fern, 
a native of New Holland. Fronds glabrous, two to three feet high, tripinnate, of a light 
yellowish green, and glaucous beneath ; pinna? opposite, lanceolate ; pinnules opposite, 
sessile, oblong-linear, acuminate, with roundish oblong-obtuse membranous segments, de- 
current at the base. Sori oblong-linear, llachis and stipes glaucous, scaly at the base ; 
lateral, adherent to a scaly creeping rhizome. 
LONCHITIS, ZimuRus. — Name derived from lor/che or lonche, a lance ; alluding to the form 
the fronds. 
Sori marginal, oblong or linear-arcuate, produced on the apices of four or five convergent 
venules, which terminate in the sinus of the segments. Indusium linear ; venation reticu- 
lated, forming unequal areoles. Fronds from two to six feet long, pinnate or bipinnate ; 
pinna? sinuose or bipinnatind, and usually pubescent. — The few species belonging to this 
genus, of which there is only one at present in cultivation, have a very close affinity -with 
Litobrochia, agreeing with them in habit and venation ; the only character by which they 
are distinguished is the position of the sori, that of Lonchitis being situated in the sinus of 
the segments, assuming the form of the segment of a circle, whereas that of Litobrochia is 
linear, and occupies more or less of the sides of the segments. Fig. 38 represents a portion 
of a pinna of L. pubeseens (med. size). 
1. L. pubeseens, Willdenow. — An arborescent evergreen stove Fern, from the Mauritius. 
Fronds hairy, bipinnate, two to four feet long ; pinna? lanceolate acuminate ; pinnules 
oblong acuminate, opposite, sessile, membranous, pinnatifid, light green, with round blunt 
segments. Fronds terminal. Sori linear-arcuate, in the sinus of the segments of the 
pinmdes. This Fern is not common in cultivation, being at present confined to very few 
collections. It was introduced a few years ago to Chatsworth, from the Continent. 
eAMPTEBIA,* Presl (rteridis sp. of Authors).— "Sams derived from kampylos, a curve, 
alluding to the curved costal venules. 
Mg. S8. 
Sori linear, continuous or interrupted, occupying the sides of the segments only. Indusium plane, linear. 
Veins forked ; venules direct, the inferior pair arcuately, or transversely anastomosing, forming a single row of 
elongated costal areoles, the superior ones free, and combined at their apices by a transverse sporangiferous recep- 
tacle. Fronds from three to five feet high, glabrous, pinnate or bipinnatind. — The cultivated representatives of 
this genus are but few in number, one only being at present in cultivation. In habit, texture, and circumscrip- 
tion of fronds, they so closely resemble Pteris, as to be scarcely divisible from them, the only technical character 
that can be pointed out being a solitary row of anastomosing or arcuate costal venules, wlrieh may be considered 
• Wc have thought it desirable to include this genus in our enumeration, rather in deference to the opinions of others, than ns 
accordant with our own. The genus was established by Presl, on a few species of Pteris baring a solitary row of costal arcuate 
venules ; and Mr. J. Smith, in his "Enumeration of Ferns Cultivated in the Moyal Gardens at Kew," in 1845, following up the idea 
that this slight variation of venation was sufficient ground for generic distinction, has adopted it. But taking into view the 
venation of some species of Adiantum, where a partially anastomosing and a free state of venation are found in the same 
frond, it is evident that such variations cannot be of sufficient importance for purposes of generic distinction. Moreover, if this 
single character were here considered sufficient on which to found a genus, two others at least must he established on precisely 
similar characters— one in Stenochtena, as may be seen by our fig. 23 (p. 130), the other in Hcmitelia ; and this, instead of 
facilitating the study of Ferns, would only render it the more intricate. In our opinion, therefore, Campteria ought not to he 
retained, hut the species should revert to Pteris. 
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