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A N 
APPENDIX 
TO THE 
FIRST PART of this HISTORY of FERNS. 
ACROSTICHUM. Parti. Page ai. 
ACROSTICHUM alpinum. 
Frondihus fubbipinnatis^ pinnis remotis fubalternh^ lohis rotundis fub^- 
crenatis fuhtus hirfutusy flipite Icevi* Flub, Phyt, Tab, 89. Fig, 5. 
Barrelier Icon, 432. Fig, 2, 
FAB, XLII, 
ALPINE ACROSTICHUM. 
root of this little Acroftichum confifts of a few black, hard 
* branches, conneded to a fmall head, and furnifhed with black, 
hard, capillary fibres. 
The rib of the firfi: leaf, when full grown, is about three inches 
high, of a pale, brownilh-green colour, {lender and fmooth, being quite 
deftitute of hairs. 
Second leaves, fix or feven pairs, oppofite below, alternate above, of 
a triangular figure, obtufe at the corners; three or four of the lowed; 
pairs being all of equal fize, and remote ; two or three of the upper 
gradually leifening, and growing clofcr together. 
Lobes 
