catia 
The Natural Hiflory of Jamaica. 
Inches diftance, it puts forth Leaves about a Foot long, having about 
two Inches of their Foot-Stalk naked. This Foot-Stalk afterwards divides 
its felf into Branches, fometimes fet oppofite to one another, but moftly 
alternatively: the Branches have their Twigs, on which grow the Pinnule 
or Leaves, being long. deeply cut in on the edges, very thin, pellucid, 
of a yellowith green colour, having fome dark opaque Ribs running through 
them, and a woolly Hair on them, and the Seed on the ends of their 
Segments in a little Cup. | 
Ic grows on the Truncs of the larger Trees on Mount Diablo, and Ar- 
thers Ridge. 
It is very plain that this is not the Adianthum Petreum perpafillam Anclicum 
foliis bifidis vel trifidis Newtoni. Raii hiff. p. 14x. nor any of thofe. Plants 
concerning which Dr. Plukenet raifes doubts in his Mantiffz, p. 5. 
LXXXVIL Adiantum nigrum ramofum maximum, foliis few pinnalis tenuibus; 
longis, acutis, {pinofts. Cat. p. 22. Tab. 57. Fig. 4. Filix ramofa Famaicenfis ci- 
cute majoris foliis, frve adianti nigri vulgaris pinuulis amplioribns, Bub. hift. Ox. 
part. 3. p.534. An Filix ramofiffima cicate foliis. Tourncf. Inft. p. 537? 
This rifes three Foor high, having areddifh coloured {mooth Stalk, di- 
vided at one Foot and a half from the Ground into feveral Branches, having 
their Twigs, and they their Pinnule or Leaves, after the manner of the Adi- 
antum Nigrum Oficin. J.B. only they are longer, thinner, fharper at point, 
having there a very little prickle, as well as others, much fmaller. ({o as 
to be {earce difcernible,) along their Margin, where are no incifures or very 
{mall ones. They have on their back parts, many round, rufty Spots, aftet 
~ manner of the other Ferns. 
It grewon Mount Diablo very plentifully. 
This is fometimes of a pale green colour, with almoft pellucid thin Leaves 
or Pinnule. 
. This cannot poffibly be the Filix Africana floride fimilis, Gc. Plukenet. 
Alm, p. 156. Phyt. Tab. 181. Fig. 5. as that Author doubts in his AMantiff 
p. 83: | 
LXXXVIN. Adiantum nigrum ramofum majus, foliis feu pinnulis tenuibus, lon 
gis, acutis, fpinofis. Cat. p.r3. Filix Famaicenfis ramofa adianti nigri pinnulis an- 
guftioribus. Bob. hiff. Ox. part.3. p. 584. | aS 
The Root of this was knobbed, and had many blackifh Thongs run from it 
into the Earth, to receive its Nourifhment. It differed only from the former 
in bignefs, and fo perhaps may be only a variety. Of this I have fevecal 
Samples differing in bignefs and colour. 
They grew on Mount Diablo with the preceding 
LXXXIX. Adiantum nigrum ramofum minus, pinnulis minoribus, tenuibus, obtit- 
Shs, crenatis. Cat. p. 23. Tab. 54. Fig. 2. Filix Famaicenfis humilior acuta alarum 
pinnulis inferioribus, brevioribus, Bob. hift. Ox. part. 3. p.576. , 
This is about the ordinary bignefs of the Adiantum Nigrum Offcin. J. B. 
has a whitifh or pale gre2n Foot-Stalk , the Pinnule or {mall Leaves lef- 
fer, thinner, and not cut in on the edges, being not fo fharp, and with- 
out thofé {mall prickles the precedent Kind has, It has a fmall creeping 
Root, like that of Polypodium, with hairy fibrils, by which it draws its Nou- 
rifhment, and fometimes comes to be a Foot high. 
I found it grow with the others, 
Cec XC, Adana 
