Brackenridge) : B, Mergui, Griffith ; Aneiteum, trees on moun- 
tains, New Hebrides (exactly according with the P. caudiforme 
of Blume); Fiji Islands, Seemann (Pleuridium vulcanicum, 
J. Sm., in Seemann’s Cat. of Fiji Island Plants). The oldest spe- 
cific name of the plant, which we have preserved, is only expres- 
sive in certain forms of it. 
Descr. Caudex long, creeping on the surface of the ground, 
or more frequently on the trunks of trees. S#ipi/es a span to a 
foot long. Frond 6-10 inches long, and 3—4 inches wide in the 
broadest part, very firm and coriaceous ; primary veins very con- 
spicuous and very prominent beneath, the rest of the venation 
internal anastomosing and seen with difficulty. 
Fig. 1. Portion of a sterile frond, showing the venation. 2. Portion of a 
fertile frond, showing venation and sorus, and a receptacle from which the sorus 
have been removed :—magnified. 
