XXIT. GBNEEA OP FBENS: 



§ 3. LoMABtBS. 

 (a) Veins free. 



18. LOMABIA, Willdemw, Mag. Nat. Ber. 1809, 160. 



SXEGAKIA, BroiOM ; L OMAHEDItTM, PrcsZ; POLYGBAMMA, PresZ ; PABAI.0- 

 MABIA, P^e; Onocle^ sp., ii«. and Auct.; AcEOSTICHi sp., j4ttci.; Os- 

 MTnsT>JE sp., .^ucj. ; Blechni sp., Metteniu9 ; SALPICHX.ffiN.ffi sp., Pee; 

 Ptebidis sp., Auct.; Hemioniiidis a^.fAuct.i PAEAELECHifisp.,Pre«2; 



POL-XTODII sp,, .^UC^. 



fi'oW indusiate, linear, contiuuous, on a broadish linear recep- 

 taole, oooupying nearly the whole under surface of the contracted 

 fertEe fronds. Iiubisium attached at the margin, linear, conti- 

 nuous, scariouB, opening along the inward side. Veins (sterile): 

 simple or forked from a central costa, the venules direct, free ; 

 or (fertile) obsolete. 



Fronds simple pionatifid pinnate or bi-pitmatifid ; the fertile 

 contracted. Khizome short, thick, erect or decumbent, rarely 

 creeping or arborescent. — This genus is technically very nearly 

 allied to Blechmmi,, its typical species differing in having the aori 

 and indusia at the margin, whilst in Blechtmm they are distinctly 

 intramarginal ; but there are some species in which these differ- 

 ences are not very obvious. L. Fraseri, which, haa a slender 

 arborescent trunk-like rhizome, is an anomalous species, ap- 

 proaching Onychiwm, but wanting the pinnate veins of the fertUe 

 segments which occur in that genus. 



Ex. : L. Patersoni, Spr. 

 L. aJpina, Spr. 



L. Bsnkmi.Hewwrd; Sook.fZ. 

 L. blechnoides, Bory. 

 L. procera, Spr. 

 L. discolor, WiUd. 



L. elongata, Bl. 

 L. glauca, Bl. 

 L. caJlosa, Fie. 

 L. Boryana,TFtZM. 

 L, alta^ Sewcurd. 

 1. Praseri, A. Cwrm. 



19. BLECHNITM:, Lmnaus, Gen. PL, ed. 5, 1039. 



Osthogeamma, PresJ; Spicasta, Fresl; Blechitopsis, Pretl; Duxsik, 

 Preil; Mbbothema, PresJ ; Distasia, PresJ ; Paeableohhi 8p,,"'P«:^sZ ,• 



LoUABLffi sp., Auct J SlEGAlTLS, Sp,, Atlct ; SlSHfOCULMNM sp.,P^e; 

 TmnITUHB Gp.,Aucti ASPLEITII sp., Auct; OSMUND.ffi sp., Atict; Oho- 



CLE.ffi sp., Auet; AoBOBiioHi Sp., Auct ; Stetjthioptebibis sp., Auci. 



Sori indusiate, linear, continuous or rarely interrupted, on a 

 transverse receptacle, approximate to the costa ; central, or some- 

 times sub-marginal by the contraction of the fronds. Ind^mim 



