790 MINNESOTA BOTANICAL STUDIES. 



obtained. Diligent search in situations favorable to its growth, 

 would probably prove it to be much less rare than it is sup- 

 posed to be, as it is a plant easily passed by. 

 May to August (2246). 



HYMENOPHYLLACEAE. 



HY3IEN0PHYLLOI Smith, Mem. Acad. Turin. 5:418. 

 1793. 



Hymenophvlluin lanceolatum H. & A. Bot. Beechy, 109- 



1832. 

 On trees on Konahuanui, Oahu, especially toward the sum- 

 mit (2229, 2256). On Kauai, it was collected on trees, near the 

 Wahiawa bog (2750), at 3000 feet elevation. 



Hymenophylluni obtusum H. & A. Bot, Beechy, 109. 1832. 



A small fern, usually with brownish fronds. It grows in 

 moss- like tufts on tree trunks. Collected at 2000 feet eleva- 

 tion, above Manoa, Oahu. The type was collected by Lay and 

 Coolie, on Oahu. 



November 5 (2910). 



Hymenophylluni recurvuni Gaud. Bot. Voy. TJranie, 576. 

 1830. 



On trees and rotten logs. Common at medium elevations on 

 Oahu and Kauai. A handsome plant, light green in color. 



July 25 (2620). 



TRICHOMANES L. Sp. PL 1097. 1753. 



Triclionianes apiifolium Presl. Hymenophyllaceae, 44. 1843. 



A few clumps of this species were found at about 2500 feet 

 elevation, on Konahuanui, above the Nuuanu valley gulch. It 

 grows on the ground. 



April 22 (2179). 



Triclionianes humile Forst. Prodi*, n. 464. 1786. 



On the left bank of the Hanapepe river, above the junction, 

 and near the falls, is a large rock shaded by a thick growth of 

 "Ohia" trees (Eugenia inalaccensis), on which this small fern 

 grows in abundance. It was not observed at any other sta- 

 tion. 



July 12 (2556). 



