yin 
Here the author not only gives his own elaborate descriptions 
of many new, rare, or little known species, but also inserts 
Dr. Schrader’s remarks on Cape Ferns, hitherto concealed 
in a learned periodical,* little accessible to botanical students. 
This important publication, which unhappily has been left 
unfinished, contains the descriptions of twenty-three genera 
and sixty-nine species. The latest monograph on the sub- 
ject we owe to the pen of one of the ablest Pteridologists of 
our time. The rich collections made in this country by 
Ecklon and Zeyher, Drege, Gueinzius, and others, supplied 
the late and much lamented Professor Kunze (of Leipzic) 
with ample materials for his treatise on South African Ferns. 
This appeared under the title of “ Acotyledonearum Africae 
Australioris recensio nova. I. Filices, in the Linnaea f for 1836 
and 1844, and contains thirty-three genera and one hundred 
and eleven species, many of which were perfectly new. Some 
of them are also figured in Kunze’s continuation of Schkuhr.J 
Since then, the number of South African Ferns has been on 
the increase, a fact borne out by the contents of the following 
pages. 
* Goettinger gelehrte Anzeigen, 1818. 
f Linnaea. Ein Journal fiir die Botanik in ihrem ganzen Umfange. 
X G. Kunze, Die Farrnkraeuter in colorirten Abbildungen. Leipz. 1840 
sq. 4to. 
