Heller : plants of the Hawaiian islands. 789 



GLEICHENIACEAE. 



GLE1CHENIA Smith. Mem. Acad. Turin. 5:419, pi. 9. 

 1793. 



Gleichenia dichotoma ( Willd.) Hook. Sp. Fil. 1 : 12. 1846. 

 Mertensia dichotoma Willd. Act. Holm. 167. 1804. 



This species is common in dry, open situations on the edge 

 of the woods, and also at considerable elevations, in thick wet 

 woods. It is called " Stag Horn." In many places it forms al- 

 most impassible jungles, the long, vine-like branches interlac- 

 ing with one another and also climbing over bushes. 



August 23 (2761). 



Gleichenia longissima Blume, Enum. 250. 1830. 



Gn the ridge opposite Gay & Robinson's valley house, at an 

 elevation of 2500 feet. Also at a higher elevation on the ridge 

 west of the Hanapepe river, and at 4000 feet above Waimea, 

 Kauai, where it was growing along a stream bank. A handsome 

 species, more confined to the ground than G. dichotoma, and 

 much less inclined to spread. 



July 23 (2613). 



Gleichenia owhyhensis Hook. Sp. Pil. 1 : 9. 1846. 



Only a few specimens of this species were picked up near 

 the summit of Konahuanui, Oahu, growing where the stunted 

 trees are covered with dense growths of dripping mosses and 

 hepatics. Here it replaces G. dichotoma, which it somewhat 

 resembles, and which is abundant on the lower and drier slopes 

 of the same mountain. There is no authority for changing 

 this name to haivaiiensis, as some have done. The species is 

 endemic to the Hawaiian group. 



SCHIZAEACEAE. 

 SCHIZAEA Smith, Mem. Acad. Turin. 5:419. 1793. 



Schizaea robusta Baker, Syn. Fil. Ed. 2, 429. 1874. 



The first specimens of this plant were collected at an eleva- 

 tion of perhaps 2500 feet, on Konahuanui, Oahu, on a little 

 level spot in clay formation. The plants were small and 

 stunted. It was also found on the opposite side of Nuuanu val- 

 ley, on the slope of Waiolani, at the same elevation. Near the 

 Wahiawa bog on Kauai, large and beautiful specimens were 



