918 MINNESOTA BOTANICAL STUDIES. 



Dubautia laxa H. & A. Bot. Beechy, 87. 1832. 



On Konahuanui, Oahu, this species is not uncommon from 

 an elevation of 2, 500 feet to the summit. On and near the 

 summit it is very plentiful, the broad as well as the narrow 

 leaved forms being found side by side. It is smaller and more 

 bushy than D. plantaginea, but this is due to the greater eleva- 

 tion, and the fact that it grows only within the limit of scrub 

 vegetation. The inflorescence is hispid, and the flowers purple. 



November 2 (2902); original locality, Oahu. 



Dubautia knudsenii Hillebr. PL Haw. Is. 223. 1888. 



A branched shrub, about six feet high. The branches are 

 slender, glabrous, brownish, and spreading. The leaves are 

 obovate, thin, glabrous, cuspidate, serrate. -In my specimens 

 the corymbose inflorescence is not quite as long as the leaves, 

 and drooping, the latter fact not noted by Hillebrand. Col- 

 lected at an elevation of 4,000 feet, on the plateau above Wai- 

 mea, Kauai, on the banks of a forest stream. This is a rare 

 species, as hitherto it has been "collected only by Knudsen,on 

 the mountains of Waimea, or Halemanu." 



September 30 (2856). 



Dubautia plautaginea Gaud. Bot. Voy. Uranie. 468, pi. 84.. 

 1830. 



HiJlebrand says this species grows on "Oahu on both moun- 

 tain ranges, at elevations of near 3,000 feet." I have seen it 

 on Konahuanui, at elevations of 1,500 to 2,500 feet, but never 

 higher. Above 2, 500 feet, its place is taken by D. laxa. It is 

 much larger in every way than that species, and has a panicu- 

 late instead of corymbose inflorescence. The flowers are either 

 yellow or purple. It is a slender tree, often fifteen feet high. 



November 2 (2909); original locality, Oahu. 



ECL1PTA L. Mant. 2:157. 1771. 



Eclipta alba (L.) Hassk. PL Rar. Jav. 528. 1848. 

 Verbesina alba L. S p. PI. 902. 1753. 



Rather common about Honolulu, in old taro ponds and near 

 streams, but sometimes in dry ground. 



March 21 (1979); original locality, "in Virginia, Surinamo." 



