922 MINNESOTA BOTANICAL STUDIES. 



the upper ones lanceolate. The flower heads are small, pale 

 purple. 

 April to October (2175); original locality, "in India." 



XANTHIUM L. Sp. PI. 967. 1753. 



Xanthiuni strumarium L. Sp. PI. 987. 1753. 



A common weed about Honolulu. On Kauai it has become a 

 a great nuisance in pasture land near the coast, as the burs 

 become entangled in the manes and tails of horses. It is found 

 only at low elevations. Collected in lower Pauoa valley, 

 Oahu. It is of wide distribution, originally having been re- 

 corded from "Europa, Canada, Virginia. Jamaica, Zelona, 

 Japonia." 



CICHORIACEAE. 



CREPIS L. Sp. PL 805. 1753. 



Crepis japonica (L.) Benth. PL Hongkong. 194. 1861. 

 Prenanthes japonica L. Mant. 1 : 107. 1767. 



Said to be an introduced species. It is found only in the for- 

 ests, and appears to be native. On Konahuanui, Oahu, it is 

 found as high as 2500 feet. Usually a slender plant, eight or 

 ten inches high, but sometimes rather stout, branched above, 

 two to three feet high. The thin leaves are lyrate, and the 

 heads numerous, yellow flowered. 



April to June (2074); original locality, "in Japonia." 



HYPOCHAERIS L. Sp. Pi. 810. 1753. 



Hypochaeris radicata L. Sp. PL 811. 1753. 



A plant not recorded as growing in the Hawaiian group. It 

 is about twenty inches high, with smooth, slender stem, branch- 

 ing above, and destitute of leaves, which are all crowded to- 

 gether as a bunch of prostrate lyrate root leaves. The yellow 

 heads are an inch in diameter. Collected on the plateau above 

 Waimea, Kauai. It grows on the edge of the forest, at 4000 

 feet elevation, and must have been introduced in some way 

 from Australia, as it grows in. that country. 



September 30 (2835); original locality, "in Europae cultoris 

 pascuis." 



