POLYPODIACE.E. 227 



Odontoloma Boryanum, of J. Smith, and of this work ; the form, tex- 

 ture, and direction of the pinnae of the latter being very different 

 from that of the present species. 



4. Odontoloma tenuifolium, J. Sm. 



Odontoloma tenuifolium, J. Sm. in Hook. Jour. Bot. 3, p. 415. 



Lindscea tenuifolia, Blume, Enum. Plant. Jav. p. 219. 



Davallia {Odontoloma) Blumeana, Hook. Spec. Fil. 1, p. 177, t. 54, A. 



Hab. Islands of Tutuila and Savaii, Samoan Group. 



Excepting some species of Eymenophyllum and Trichomanes, there 

 is perhaps no Fern that has the divisions of its fronds so delicately 

 membranaceous, or so elegantly arranged and finely divided as the 

 present species. The figure in Hooker's Species Filicum is very cha- 

 racteristic : the segments of the pinnules, however, in many of our 

 specimens, are not so deeply divided as they are there represented. 



73. H U M A T A, Guv., J. Sm. 



(Davallia Spec. Auct.) 



Vence simplices vel furcatce; venulis parallelis apice sporangiferis. Ir^- 

 dusium orhiculare seU reniforme, coriaceum, marginem fere adcequans, 

 apice cum lateribus liberum. Sporangia pedicellata. — Rliizomata 

 repentes squamosi: frondes coriaceai, aut integral aut bi-tripinnatir- 

 sectce. 



* Frondes steriles integerrimai, fertiles sinuatm. 

 1. HUMATA OPHIOGLOSSA, Cav. 



Humata ophioglossa, J. Sm. in Lond. Jour. Bot. 1, p. 425. 



Davallia heterophylla, Sw. Syn. Fil. p. 130 & 337; Willd. Spec. PI. 5, p. 465; 

 Hook. & Grev. Ic. Fil. t. 230 ; Hook. Spec. Fil. 1, p. 152 (subgen. Humata). 



Hab. Tahiti, Society Islands ; also Samoan and Feejee Islands. 



