LINDS.EA. 219 



II;ib. British Guiana. R. .Sc/tvmbur(/^. — \o iiinaiks on the aiiinities of 

 this are jfiven. 



47. L. cuneifolid, Pr. " fronds ovato- triangular quadrupli- 

 cato-pinnate tri])innate at the apex, primary and secondary 

 pinnie alternate acuminate, tertiary obtuse, pinnules cuneate 

 truncate at the apex bi-trifid, sori linear continuous, rachis 

 glabrous." Presl, lleliq. Hicnk. 1, j). ()0. 



Hab. Island of Luzon. {Presl.) 



Dubious species, or wholbj unknown. 

 L. bilobata, Pr. name only. 



L. truncata, Pr. name only, said to be a Vittaria of Gau- 

 dichaud, but I do not find such a species described. 

 L. pelacophylla, Pr. in Herb. Meyen. 

 L. secnrifolia, Pr. in Herb. Meyen. 

 L. brevifolia, Reinw. in Pr. 



Subgen. H. Schizoloma, Gaud. J'e ins more or less anasto- 



mosiny, uiih no free leinlets in the areolce. — Sp. 48 — 60. 



* Fronds simple or only lobed. 



48. L. cordafa, Gaud. ; caudex creeping short, slipites 

 tufted elongated, fronds coriaceous, sterile ones ovato-cor- 

 date obtuse entire, fertile linear-lanceolate or tripartite with 

 the segments linear-lanceolate, costa prominent beneath, 

 veins reticulated, sorus continuous the whole length of 

 each margin. (Tab. LXVI. A.) Schizoloma cordatum, 

 Gaud. Ami. Sc. Nat. 1824,/?. 507; in Freyc. Voy. p. 179, 

 /. 16. 



Hal). Rawak in the Moluccas, Gaudichaud. New Guinea, Hinds. — A 

 highly peculiar and Acrostichuin-like fern, apparently of ver\' rare occur- 

 rence. 



49. L. Griffithiana, Hook. ; lax and flaccid, caudex creep- 

 ing short, stipites shorter than the elongato-lanceolate simple 

 membranaceous costate frond, veins reticulated, sorus conti- 

 nuous round the entire margin. (Tab. LXVUI. B.) 



Hab. Merpui, East Indies, Griffith. — The caudex, in the only specimen 

 I possess, bears 5 fronds, and all of them accord in the quite entire nature 

 of the frond. 



** Fronds pinnate (or, when young, simple). Sp. 1!) — ;')(>. 

 •(• Cusla central. Sori on both marr/iiis of the nearly equal pinnce. Sp. JO-ol. 



50. li. penliiplnilla. Hook. ; lax and flaccid, caudex creep- 



