638 CLVII. FILICES. 



Tribe II.- — Marattie,e. 



Spore-cases without any perfect ring, opening in 2 valves or 

 in a longitudinal slit, sessile or united, in 2 rows, in sori forming 

 marginal lobes to the segments or placed on their under surface. 

 Lygodium, Sw. — Snake's-tongue Fern. All climbers, often called 

 " Climbing Maidenhair." 



dichotomum, Sw. 



scandens, Sw. 



reticulatum, Schkuhr. 



japonicum, Sw. 

 Schizaea, Sm. 



bifida, Sw. 



dichotoma, Sw. 



Forsteri, Spreng. — Often found growing among the upper 

 roots at the base of Palm-trees. 

 Angiopteris, Hoffm. 



avecta, Hoffm. — This tropical plant is met with in the scrubs 

 of the North Coast line. 

 Marattia, Sm. 



fraxinea, Sm. — Potato Fern. 



Tribe III. — Osmunde.e. 



Spore-cases globular or nearly so without any or with an 

 imperfect or transverse ring, opening in 2 valves or irregularly, 

 few, sometimes solitary, rarely numerous and clustered in sori (a 

 heap of sporangia), on the under surface of the segments or pin- 

 nules. 

 -Ceratopteris, Br on g 11. 



thalictroides, Brongn. — Water Fern. 

 Platyzoma, R. Br. 



microphyllum, R. Br. — Braid Fern. 

 Gleichenia, Sm. 



circinata, Szv. — Parasol Fern. 



dicarpa, R. Br. 



flabellata, R. Br. — Umbrella Fern ; contains saponin. 



flagellaris, Spreng. 



dichotoma, Hook. 

 Todea, Willd. 



barbara, T. Moore. — Swamp Fern-tree. 



(Leptopteris) Fraseri, Hook, et Grev. — Crape Fern. Near 

 the summit of Bellenden-Ker is the only Queensland 

 habitat I know of this plant. 



