16 ON THE JAMAICA FERNS OF SLOANE’S HERBARIUM. 
But whatever they ed they shall by me be ranged as those of Europe are by 
ri hae be rding to the divisions of their Leaves: and whereas it Ri com- 
monly held that no Fern has, properly speaking, a Caulis or Stalk, yet it will 
hereafter Slaunly appear they have. To avoid a great deal of trouble in the 
di ane hem, 
taken — of in the division. Without doubt all a named Ferns are 
n 
ch: 
are vert and therefore not having seen their Sabie, I aie them this, till a 
better place is foun e name T'richomanes shall signifie with me the second 
divided Fern with broad small Leaves, and the word Lonchitis those with ones 
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they are sinuated; many other Varieties there are, appearing really 
rere — may be sensty found out by any, who considers their al 
It is true, as Sloane says, that ‘‘ Ferns in Jamaica are very 
numerous, and strange’’—that is, Le as their manner of - 
growth.’ Over four times as many are known now than he knew, 
and the variation of form is eorreaponding!y greater. Though 
several extend into the middle and higher regions of the country, 
nearly all that he gathered are Sachraeassvoly low altitude species. 
He was only partly right in regarding the ‘stalks of those 
climbing ferns only as roots’”—that is, root-stocks ; 
twining kinds, such as Blechnum volubile, two o Lygodiums, Hypo- 
lepis nigrescens, Davallia aculeata and fumarioides, all but one of 
clas n he 
tended is left rather ambiguous and indefinite. It is based on the 
divisions of the fronds,—entire, pinnate, bipinnate, &c. He is also 
somewhat obscure in the use of his terms, Trichomanes, Lonchitis 
Filices non Ramose, and Ramose. In going through the plants we 
shall see how the "clansttieabion is carried out, but Sloane did not 
employ his divisional characters as poaaeniee to define what species 
came under —— 
which he h 
Pats were in many cine cited by Linneus as types of hi 
given 
pager tae 
