224 



F I L I C E S. 



proprio membranaceo dblongo seu reniformi margine breviore; venia 

 paucis, venulis angulato-anastomosantibus out liberis. 



Hab. Savaii, Samoan Islands. 



Rootstoch long, slender and creeping, ascending the trunks of trees. 

 Stipe quadrangular, squamose at the base, smooth and slender above, 

 from 3 to 4 inches in length, of a reddish-brown colour, the scales at 

 base slender and reticulated. Fronds from a foot to 15 inches long, 

 elastic, smooth, linear-ensiform, pinnate to the apex. Pinnce alternate, 

 numerous, membranaceous, crowded, dimidiate-oblong, obtuse, the base 

 truncate-cuneate, the inferior margin entire, the superior margin cut 

 into 5 to 6 round lobes, the upper portion of each lobe bearing within 

 its margin a transversely oblong or reniform indusium of a delicate 

 membranaceous texture, shorter than the margin, and resting on a 

 single vein, or on a combination of two venules. 



In habit and in the form of the pinna? our plant very much resembles 

 the Odontoloma Boryanum of J. Smith, which has a free or forked 

 venation, and the superior margin of the pinnae incisely dentate. In 

 the present species the majority of the veins anastomose, forming 

 from 2 to 4 elongated and angular areoles in each pinnae ; so that it 

 may be said to possess the venation of Sy7iaphZebium, with the sori 

 of Odontoloma. 



Plate 30. — Fig. 2. Portion of a plant, of the natural size. 2 a. 

 A pinna, slightly magnified, to show the anastomosing venules. 2 6. 

 Dorsal view of a lobe, with a single sorus, and a portion of the indu- 

 sium turned back to show the sporangia. 2 c. A sporangium. — The 

 dissections more or less magnified. 



4. Synaphlebium davallioides, J. Sm. 



Synaphlebium davallioides, J. Sm. in Lond. Jour. Bot. 1, p. 424. 



Lindscea davallioides, Blume, Enum. Plant. Jav. p. 218 j Hook. Spec. Fil. 1, p. 224, 



t. 68, A. (subgen. Sdrizoloma). 

 Davallia Kunzeana, Hook. Spec. Fil. 1, p. 177. 



Hab. Feejee Islands ; and Tutuila, Samoan Islands : terrestrial. 



