802 MINNESOTA BOTANICAL STUDIES. 



GAHNIA Forst. Char. Gen. 51, pi. 26. 1776. 



Galium maunii Hillebr. Fl. Haw. Is. 482. 1888. Ex de- 

 scriptio. 



Plants referred to this species, were collected at 4000 feet 

 above Waimea, Kauai (2840), in dry gravel, near the edge of 

 the plateau. Later it was again collected in damp woods, on 

 the slope of Konahuanui, Oahu (2912). Hillebrand's type came 

 from Lanai. 



Gahuia gahniaeformis (Gaud.) Heller. 



Morelotia gahniaeformis Gaud. Eot. Voy. Uranie, 416, pi. 28. 1830. 

 Gahnia gandichaudii Steud. Synop. PL Gl. 2: 164. 1855. 



It is stated in Hillebrand's Flora, that Cladium quadr angular e 

 Nees, Linnaea, 9:301, is a synonym of this species, but refer- 

 ence to the page cited does not seem to substantiate that view, 

 as Morelotia gahniaefolia is given as quite distinct, near the bot- 

 tom of the page This species was not collected by me. 



KYLLINGA Rottb. Descr. et Ic. 12, pi. 4, f. 3-4. 1773. 



Kyllinga monocephala Rottb. Descr. et Ic. 13, pi. 4, f. 4. 1773. 



Common, from sea level to 2500 feet elevation, on Oahu. 

 Some of the vigorous plants which grow in rich soil in the for- 

 ests, present a very different appearance from the low, stunted 

 forms which grow in lower and more exposed places. 



March to October (1970). 



RYNCHOSPOKA Vahl. Enum. 2:229. 1806. 



Rynchospora lavarum Gaud. Bot. Voy. Uranie, 415. 1830. 



At an elevation of about 2500 feet, on Konahuanui, Oahu, is 

 a flat place only a few yards in extent, where this species is 

 plentiful. The soil is a stiff clay, so that considerable moisture 

 is retained, instead of rapidly sinking, as is usually the case in 

 the light volcanic soil of the islands. Near the centre of this 

 small space a hole has been dug, in which water can always be 

 found, and on the edge of this hole the plants are thickest. 

 Hillebrand mentions it as growing on the high mountains of 

 East Maui and Hawaii. It must have been collected on Oahu by 

 Lay and Coolie, as it is enumerated in the "Botany Beechy." 



May 23 (2343). 



