292 



F I L I C E S. 



A very small specimen of this was received by the Expedition, 

 from Mr. Balestier, United States Consul at Singapore. The speci- 

 men is without fructification, and otherwise not in a very good condi- 

 tion to determine whether it is specifically distinct from G. semi- 

 vestita, Labill., to which Mr. John Smith, in his Enumeratio Filicum 

 Philippinarum, has referred it. The form of the pinnules and segments 

 is certainly much the same ; but the common rhaohis in our plant 

 is densely covered on both sides with brown and slender paleaB. 



87. ME B TEN SI A, WUld., Presl. 



(GrLEiCHENi^;, Spec. R. Br. & Auct.) 



*■ Stipes simplex: frondes bipinnatce; pinnulis pinnatifidis. 



1. Mertensia GLAUCA, Sw.? 



Mertensia glauca, Sw. Syn. Fil. p. 164 & 390? 

 Gleichenia glauca, Hook. Spec. Fil. 1, p. 4, t. 3, B. 



Hab. Oahu, Sandwich Islands ; at the elevation of 1,500 feet. 



The figure in Hooker's Species Filicum accurately depicts a very 

 marked character in this species, namely, the incised inferior pair 

 of segments, which present a crested appearance close along the 

 rhachis. 



2. Mertensia glabra, Sp. Nov. 



M. stipite elongate Icevi cum rhaclii antice piano leviter marginato; fron* 

 dibits glabris coriaceis Upinnatis ; pinnis amplis oppositls dicaricatis ; 

 pinnulis alternis petlolulatis linear i-lanceolatls acuminatis pinnati- 

 partitis, segmentis lineari-oblongis obtusis integerrimis subtas sub- 

 glaucis; venis furcatis ; sporangiis ternis eel quaternis. 



Hab. Sandwich Islands; on mountains of Kauai and Hawaii; at 

 the elevation of 1,000 to 1,500 feet. 



