Heller : plants of the Hawaiian islands. 797 



OPLISMENUS Beauv. PL Owar. 2:14, pi. 58. 1807. 



Oplismenus oahuensis Nees & Meyen, in Steud. Nom. Bot. 

 Ed. 2, 220. 1841. 



Common in damp woods, where it grows luxuriantly. Col- 

 lected on both Oahu and Kauai. Hillebrand calls it Oplismenus 

 compositus var. sylvaticus Trin. 



April to October (2061). 



PANICUM L. Sp. PI. 55. 1753. 

 Panicum colonum L. Syst. Ed. 10, 870. 1759. 



Plentiful about Honolulu, growing along the streets, and in 

 cultivated ground. It was found growing in very dry, and also 

 in wet places. The forms growing in moist or shaded ground 

 were of a more erect growth than the dry ground forms. 



March 21 (1978). 



Panicum crus-galli L. Sp. PI. 56. 1753. 



Two forms of this widespread grass were collected on the 

 edge of a taro pond in Pauoa valley, just outside of Honolulu, 

 one (2384) with long awns, and the other (2384 a) awnless or 

 almost so. The latter may be Hillebrand's variety of P. colonum. 



Panicum nephelophilum Gaud. Bot. Voy. Uranie, 411. 1830. 



Collected above Waimea, Kauai, at 3000 to 4000 feet eleva- 

 tion. Only a few scattered plants were seen, growing on the 

 outskirts of the woods. 



October (2850). 



Panicum pruriens Trin. Gram. Pan. 191. 1826. 



Common on the ridges back of Honolulu, up to about 2000 

 feet. 



March 21 (1972). 



PASPALUM L. Syst. Ed. 10, 2:855. 1759. 

 Paspalum conjugatum Berg, in Act. Helv. 7:129, pi. 8. 1772. 



The "Hilo grass," very common on the lower slopes below 

 the forests on Oahu. A large, coarse decumbent grass, which 

 grows in such tangles, that walking through it is very fatiguing. 



March 21 (1971). 



Paspalum orbiculare Porst. PI. Ins. Austr. Prodr. 7. 1786. 



Common on Oahu, where it has the same range as the pre- 

 vious; except that it extends further up the slopes. 



March 21 (1971). 



