OF ASPIDIEAE 129 
cultivation, Sagezza (p. 86) was founded on six species of which 
S. dobata (Rich.) is first named. 
The non-indusiate species forming what has been known as 
Phegopteris (in its later Mettenian sense) were left by Presl with 
Polypodium in a distinct tribe. The free-veined species he left 
under Polypodium, where they had been placed by Linnaeus, but 
in a distinct section which he named Phegofteris. The old com- . 
plex genus Polypodium was dismantled for the first time on the 
rational basis of venation, and among the aspidioid types, the 
genera Gontopteris and Dictyopteris were founded. Gontopterts 
(p. 181) was based on nine species, of which G. zzc?sa (Swz.) was 
first named, and Dictyopteris (p. 194) was founded on four species, 
of which D. attenuata (R. Br.) was mentioned first; the last 
named genus is exclusively an old-world group, so need not be 
considered further here. Pleocnemia (p. 183), another old- 
world group, was also established, based on P. Leuceana (Gaud.) 
of the East Indies. Meniscium Schreb. was properly accepted, 
but appears under a third tribe (Grammitaceae) because of its 
elongate sori. 
Link * was the next to divide the genera. His arrangement 
was as follows: 
ASPIDIUM. TECTARIA, 
CYCLosorus. BATHMIUM. 
NEPHRODIUM. DIDYMOCHLAENA. 
POLYsTICHUM. 
Of these, Aspidium was taken up for the species with a reniform 
indusium and free veins (= Dryopteris). Nephrodium was taken 
up for what Schott had named Nephrolepis, thus shifting the name 
in still a new direction beyond the range of the eight genera 
Nephrodium originally contained! Zectaria was adopted as a genus 
but was shifted to the group containing Aspidium coriaceum (Swz.), 
a species later included by Cavanilles in this genus ; for Tectarta 
‘rifoliata, however, which was the sole type of its genus as founded, 
and its allies, Link proposed a new genus Bathmium (p. 1 14).T 
He also proposed Cyclosorus (p. 108) based on C. gong: lyodes 
* Filicum species in hort. reg. bot. Berol. cultae, 1841. 
rr This name was first proposed by Presl asa subgenus of Aspidium for the group 
containing Aspidium Singaporanum Wall. (= Podopeltis Fée). Link included also 
Species of Sagenia Presl in Bathmium, making a new genus include an older one! 
