ASPLENIEiE. Iv. 



having forked naked linear sori are referred to Gymtiogrcmma, 

 though all the sori may not be forked. 

 § Eudiplazivm. — Sori linear ; indusixun plane. 

 Ex. : D. lancenm, Presl. I D. grandifoKnin, 8w. 



D. plantagineum, 8w. \ D, celtidifolium, Kze. 



D. HilsenDergianum, Fresl (Anisogonium sylvaticuni, SookJ 

 D. grammitoides, Presl. I D. arboreBcens, Sw. 



D. deltoideum, Presl. \ D. striatum, Presl. 



D. Klotzsehii (Lotzea diplazioides, Kl. et Ka/rst.J 



§ Didymocklamys. — Sori short oblong, sub-basal ; indusium fornicate. 

 Ex.: D. tumulosmn {Lmden 603; I D. athyrioides (D. brevisorum, J. Sm.j 

 Caraccas) | Kew Perm, non En. Ml. PUl.J 



* * Veins cormwently anastomosing. 

 73. CALLIPTERIS, JSory, Voy. i. 282. 



Anisogoitium:, Presl; Di&bammaeia, JECooTcer, (non Presl); Micsos- 

 TSQiA, Presl; AsPLEWii s^.yAuct.; Diplazii, sp., ^Mci. ; OxTGONii sp., 

 iT. Smith. 



Sori and receptacles as m. Di/plaziv/m. Indusium narrow, plane, 

 membranaceous, diplazioid. Veins forked or pinnate from a 

 central costa ; vermles anastomosing irregularly at an acute angle, 

 or each opposite pair uniting between the primary veins in super- 

 posed acute sub -triangular areoles ; the marginal or superior 

 vei/nlets free. 



Fronds herbaceous or coriaceous, pinnatifid pinnate or bi-tri- 

 pinnate, sometimes proliferous. Ehizome short erect. — Large 

 growing ferns, distinguished from Diplazium by the anasto- 

 mosing veins, which are analogus to those of Neph/rodivm cmd 



§ Anisogonium. — Venules sparingly acutely anastomosing. 

 Ex. : C. ambigna (Asplenium, Sw.) I C, elegans, J. Sm. 

 C. eseulenta, J. Sm. \ C. sylvatica, Bory. 



§ Callipteris. — ^Veins angularly anastomosing in superposed pairs. 

 Ex.: C. prolifera, Sory. \ C. undulosa, Presl. 



*** Veins i 

 74. OXYGONIUM, Presl, Tent. Pterid. 117. 



Pteeigltphis, Fee; Ochlogeamma, Presl; Diplazii sp., Auct; As- 

 PLEiai sp., Auct; Cai-lipteeidis sp., J. Smith; Anisogonii sp., Presl, 



Sori indusiate, linear elongate, usually double, and together 



