cxIti. table of oeneea. 



** Veins cormieently anastomosing. 



121. Nephrodium, -KicA. ISOS, (restrict.): ScTtoU, 1834. 



[p. Ixxxvii.] 



Aspidium, Sw. (pt.) 1800. 

 Cyclosorus, Ximfc, 1841. 

 AbacopteriB, JVe, 1843, 

 Pronephrium, PresZ, 1849. 



Arsenopteris Wehh ei Berth. 



(pt.) 1847. 

 Pleotoohlsena, Fie, 1861. 



*** Veins free. 



t Veins simple or pinnate, the lower anterior venule 

 (sometimes morej soriferous. 



122. Lastrea, (Bory, 1824, mutat.) : Presl, 1836. 



[p. Ixxxvii.] 



Dryopteri3, Sda/mon, 1763 : 



Sc%ott, 1834. 

 Gleichenia, J^eeker, 1790. 

 Aspidium, Sv. (pt.) 1800. 

 Nephrodium, Meh. (pt.) 1803, 

 Arthrobotrys, Wall. 1828, 



Thelypteris, iSoSott, 1834. 

 Hypodematiom, Kze. 1837. 

 Amauropelta, Kze. 1840. 

 Dichasium, .^, ^t*. 1841. 

 Lastreastrum, 'Bveil, 1849. 



Arsenopteris, Wehh et B, (pt.) 



1847. 

 Grjinnothala3mum,Zen%er3f,9.; 



Jae. 1851. 

 Hemestheum, iVeww. 1851. 

 Lophodlum, Newm. 1851. 

 Cajnptodium, Fie, 1861. 

 Ooeblamys, J^e, 1861. 

 Pachyaem8,J'.Sm.Jlf5. (1854.) 

 Pycnopteris, Moore, 1854. 



++ Veins parallel forked, soriferous at or near the 

 hose ; fronds simple, a/rticulated. 



123. Oleaadra, Cav. 1802 [p. taxix.] 



NeTU-onia, Dan, 1825. 

 Opbiopteris, Bevtm. 1825. 



++t Fejjw prnnateh/ forked, soriferous at their 

 apices ; fronds piimate, ihepimicB articulated. 



124. Nephrolepis, Schou, 1834. ... [p. ixxxii.] 



Nephrodium, iireX;, 1841. 

 LepidoneuroB, FSe, 1851. 



§ 20. Ctstoptebide«. 



(a) iSori medial. 



125. Cystopteris, .Be™^. isoe [p. xc] 



Cyelopteris, Gray, 1821. 

 Cystea, Sm. 1828. 



(b) iSon terminal, rarely aiHUary in, the forks of the 



venules; fronds membranaceous or herbaceous. 



126. Aerophorus, I'resi, 1836 [p. xd.] 



Leucostegia, Bresl, 1836. 

 Odontoloma, J. Sm. 1842. 



