llvi. GKENEBA OF TEEN'S : 



confluent. Veins arcuately anastomosing at the base, forming 

 costal areoles; venules simple or forked, parallel; connivent with 

 the thickened margin. 



Fronds rigid sub-coriaceous, pinnate, becoming pinnato-pin- 

 natifid. Rhizome arborescent, three or four feet high. This ele- 

 gant and interesting tree fern strongly resembles Sadleria, a 

 genus of LomariecB, the differences being that it has short, instead 

 of elongated sori, which are quite naked instead of being indu- 

 siate, and are sometimes continued up the oblique veins, instead 

 of being strictly confined to the costal line. It seems to us to 

 connect the Lomarieee, through Woodwardiea, with the Menis- 

 cieee, among which we place it in consequence of its short, 

 transverse, naked sori. 



Ex. : B. insignis, J, Sm. (Bowringia, Hook.J 



(b) Venules regularly anastomosing transversely between the 

 pinnate parallel veins. 



59. MENISCIUM, Schreler, Ian. Gen. PI. ed. 8., ii. 757. 



POIYPODII sp., Linncsus ; ASPLEHTI sp., Jacquin. 



Sori non-indusiate, linear- oblong, curved, often becoming con- 

 fluent ; the receptacles seated on the transverse parallel-curved 

 venules, between the primary veins. Veins pinnate from a central 

 oosta, prominent ; venules angularly or arcuately anastomosing 

 between the veins, producing an excurrent free sterile veinlet 

 from the apex of the arc or angle. 



Fronds herbaceous or sub-coriaceous, simple or pinnate. 

 Bhizome creeping. A tolerably well-marked genus ; never- 

 theless sometimes approaching the Acrostichece by the partial 

 contraction of the fertile fronds, and the consequent crowding 

 of the sori. It is connected with the Pofypodiece, through those 

 species of Goniopteris which have two contiguously -placed series 

 of sori between their principal veins. One of the most remark- 

 able species is the M. giganteum of Mettenius, from Peru, 

 which has large simple fronds crowded with sori. 



.: M.triphy] 

 M. reticul 



lyllum, Sw. 

 'atum, Schreb, 



M. longifrons, Wall. 



M. giganteum, 3fett. 

 M. ouspidatum, SI. 

 M. salicifolium, Wall. 



