CHAPTER X 
DISTRIBUTION 
In chapter IX. 220 species are enumerated as South African. 
Included among these are a few species which are admitted 
with hesitation, and which require further evidence of their 
presence, such as Trichomanes erosum, Hymenophyllum ciliatum , 
Hymenophyllum lineare , Asplenium Gueinzianum , Adiantum 
reniforme , Adiantum Paradiseae , Monogramma graminea, 
N otholaena Rawsoni , Vittaria scolopendrina and Polypodium 
Billardieri , while several others have not been collected for 
many years. 
It has been found necessary to exclude several species 
which at one time were considered South African, including 
Asplenium bulbiferum, A. flaccidum, Lomaria spicant , L. eriopus , 
Pellaea andromedifolia, A diantum ro tun datum, Pteris serrulata 
and P. tremula. 
Reference is also made to several, which for various reasons 
are not admitted, including : Trichomanes digit atum, Dryopteris 
obtusiloba , Leptochilus auricidatus, Asplenium polypodioides and 
Cheilanthes refract a. 
But the distribution of the enumerated species, alike in 
South Africa and elsewhere, is worthy of closer analysis, and 
works out as under : 
