476 BRITTON: TRICHOMANES RADICANS 
followed the English school in taking as the type the specimen in 
the Linnaean herbarium; whereas the Germans have gone to the 
original plates cited by Linnaeus, of pre-Linnaean authors, and taken 
that as the type. 
The Linnaean description is as follows : 
8. TRICHOMANES scandens frondibus supradecompositis ; foliolis 
alternis, pinnis alternis oblongis serratis. 
“Adiantum scandens ramosissimum, laciniss retusis dissectum.” 
Plum. fil., 76 t., 93. 1705. 
“Darea ramosissima scandens.” Pet. fil., 102, t. 12, fig. 5. 
1712. Habitat in America. 
If the type is Plumier’s figure on plate 93, of his Tractatus 
Filicibus Americanus, 1705, it must be noted that this is @ 
folio volume and the rhizome and part of one frond only is 
figured, yet it more than filled the plate with the upper part 
omitted, and the stipe of one frond is over a foot long, So that 
the fronds must have been two and a half feet long, with pinnae 
six to eight inches long, pinnate-pinnatifid, with linear lobes. In 
his description he says the rhizome is very long and stout, and 
that it is completely covered with dark fibers which cling closely 
to the bark of trees, like the ivy. The whole plant is remarkable 
for its great spread, being very long and branching, and giving 
rise to a great number of leaves, alternating on the stem, which, 
though delicate, are nevertheless stout; the stipes are naked, 
black and shining like ebony, and about as long as the leaf; the 
pinnae are alternate, about half a foot long, with alternate pinnules, 
which are about one inch long and are deeply cut into narrow, 
linear lobes, bearing the cup-shaped sporangia, with a membranous 
lid and the black bristle about a line long. 
The type locality is south of Leogano, Santo Domingo 
dense forests climbing on trunks of trees. ae 
The second Linnaean reference to Petiver’s Pteridographia es 
simply a copy of a portion of Plumier’s plate with the descriptive 
phrase cited by Linnaeus. 
Hooker and Baker, in the Synopsis Filicum state t 
den Bosch refers 7. scandens L. to T. Kunzeanum Hook. 
that 7. scandens of the Linnaean herbarium is described by mee 
on another page.” They recognize 7. Kunzeanum as a variety 
in 
hat “ Van 
«but 
