24 
The Ferns of South Africa. 
few ferns as yet sent out in “Herbarium Normale Austro- 
Africanum,” by Messrs. MacOwan and Bolus. 
It may surprise some that, after a lapse of 1 7 years since Lady 
Barkly’s list was published, the total number of ferns should now 
be only 157, as compared with 153 then, but it must be re- 
membered, that the cutting down process has again been in 
action, and that some forms, which were then considered species, 
have had to be reduced on further acquaintance to varieties ; while 
not a few have been put off the list as being considered mistakes, 
either in nomenclature, or as to country. 
From these causes, no fewer than 14 of Lady Barkly’s species 
have been excluded from the present work, as under, the reason 
why being explained where they are mentioned further on. 
Species reduced to varieties, or excluded as mistakes : 
Trichomanes filicula, Bory. 
— digitatum, Br. 
Pellsea andromedsefolia, Fee. 
Pteris tremula, Br. 
Asplenium dimidiatum, Sw. 
— splendens, Kze. 
— bulbiferum, For. 
Asplenium brachypteron, Kze. 
— Ceterach, L. 
— aculeatum, Sw. 
Nephrodium conterminum,Desv. 
spinulosum, Desv. 
Polypodium obtusilobum, Desv. 
— Schraderi, Mett. 
The 18 new species, or species again raised to species rank, 
are as under : — 
Trichomanes muscoides, Sw. 
Adiantum reniforme, L. 
— paradisiae, Bkr. 
— thalictroides, W. 
Cheilanthes depauperata, Bkr. 
parviloba, Sw. 
— Bolusii, Bkr. 
Blechnum remotum, Pr. 
Asplenium Schimperi, Br. 
Aspidium luctuosum, Kze. 
— Macleai, Bkr. 
Nephrodium Mauritianum, Bkr. 
crenatum, W, 
— cicutarium, Bkr. 
Gymnogramme ochracea, Pr. 
Acrostichum latifolium, Sw. 
viscosum, Sw. 
Aneimia tomentosa, Sw. 
