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THE GENERA AND SPECIES OF CULTIVATED FERNS. 
143 
ones petiolulate, slightly cordate at the base, deeply pinnatifid, with ovate segments, sub-entire at the margin. 
Fertile fronds erect, hairy, tripartite, one to two feet high ; sterile portion spreading, triangularly elongate, eight 
to ten inches long, hipinnate ; pinnae lanceolate, deeply pinnatifid, with oblong segments, fronds terminal, adhe¬ 
rent to a decumbent creeping rhizome, densely covered with articulated hairs. 
4. A. cicutaria, Kunze.—A low-growing, deciduous stove species, from Jamaica. Sterile fronds slender, tri¬ 
angularly elongate, hipinnate, tripinnate below, light green, six or seven inches long; pinnules obovate-inciso- 
dentate, cuneate at the base. Fertile fronds slender, six to nine inches high, tripartite, with the two opposite 
branches contracted and sporangiferous or triangularly elongate, with two or more pairs of the lower pinnae 
opposite or alternate, contracted, and soriferous. Fertile panicle shorter than the sterile portion. Eachis 
and stipes in both fronds scattered over with hair-like scales. Fronds terminal, adherent to a tufted 
rhizome. 
5. A. adiantifolia , Swartz, (A. asplenifolia, Swartz). —A beautiful evergreen stove Fern, from the West Indies 
and South America. Sterile fronds slender, deltoid, light green, one foot long, bi-tri-pinnate, slightly hairy be¬ 
neath ; segments oblong-ovate, dentate at the apex, cuneate at the base. Fertile fronds erect, one to one and half 
foot long, tripartite ; sterile portion deltoid, with the stipes nearly a foot longlateral, adherent to a scaly creeping 
rhizome. 
JA NEIMIDICTYON, J. Smith (Aneimiae sp, Swartz). — Named from aneimon , naked, and dictyon , a net; 
alluding to the naked inflorescence, and the reticulated venation. 
Sori unilateral on linear segments, forming dense panicles, spore-cases oval, vertical, naked. \ eins forked; 
venules anastomosing, forming unequal oblong areoles. Fronds sterile and fertile, sub-glahrous or hairy, from 
one to two feet high. Fertile fronds usually tripartite, with the two opposite 
branches contracted, erect, constituting unilateral sporangiferous compound 
panicles, the sterile portion spreading, semi-erect, and usually shorter than 
the fertile appendices. Sterile frond pinnate, or sometimes tripartite, with 
the two opposite segments or inferior pinnse small, and pinnatifid or pinnate. 
Ehizome fasciculate, erect.—The analogy existing between this genus and 
Aneimia is very close. The character of venation alone is regarded by some 
as insufficient for generic definition, while by others it is considered of 
paramount importance. We have in our progress already pointed out that, 
in our opinion, a free state of venation, and a partial anastomosing of the 
veins, cannot with propriety he made the ground of generic separation, unless 
combined with other permanent marks, since both forms are sometimes met 
with in the same frond; but we have not been able, in any instance, to detect 
a free, and a regularly retimlated venation on the same plant, consequently 
we are disposed—at least for the present—to retain genera which are founded 
on the reticulated venation. The following list shows the genera which have 
hitherto been established on the character of the reticulated venation, along 
with the genera from which they have been separated, and to which they 
must revert, if the constancy of reticulated venation is ever found to fail:— 
* Syn gramma 
* Hewardia 
Litobrochia 
* Schizoloma 
from Gymnogramma. 
,, Adiantum. 
,, Pteris. 
,, Iso lorn a. 
* Synapblebium from 
* Cionidium-t- ,, 
Lygodictyon „ 
Aneimidictvon ,, 
I indssea. 
Deparia. 
Lygodium. 
Aneimia. 
Those which are marked with an asterisk are not at present in cultiva¬ 
tion. Fig. 88 represents a sterile pinna, and a portion of a fertile panicle of 
Aneimidictyon Phyllitidis (nat. size). 
1. A. Phyllitidis , J. Smith, (Aneimia, Swartz). —A beautiful, evergreen, 
stove fern, from the West Indies and tropics of South America. Sterile 
fronds pinnate, light green, one to one and half foot long; pinnae glabrous, 
oblong-lanceolate, petiolulate, acute at the apex, somewhat round or obtusely 
Fig. 88. cuneate at the base, crenate-serrate at the margin. Fertile fronds erect, 
tripartite, one to two feet high; sterile portion spreading, and from eight inches to a foot long. Eachis and stipes 
slightly hairy. Fronds terminal, adherent to a fasciculate-erect rhizome. 
2. A. Haenkei , Presl (Aneimia longifolia, Raddi). —An ornamental evergreen stove fern, from Brazil. Sterile 
fronds very hairy, pinnate, about a foot long, deep green; pinnee oblong, membranous, petiolulate, obtuse at the 
apex, superior base round and sub-auriculate, inferior truncate-cuneate, crenulate on the margin. Fertile fronds 
erect, tripartite, one and a half to two feet high, very hairy; sterile portion spreading, pinnate, eight to ten inches 
long; pinnse oblong, obtuse at the apex, upper base rounded and sub-auriculate, lower truncate-cuneate. Fronds 
terminal, adherent to a fasciculate erect rhizome. 
3. A. fraxinifolia , J. H., (Aneimia densa, Link in part).—An ornamental evergreen stove fern, from Brazil. 
t Cionidium Moorii, T. M. MS.—Deparia Moorii, Hook, in Journ. of Hot. iv. 55. 
