302 MR. T. F. CHEESEMAN ON 
MARISCUS SIEBERIANUs, Nees, var. SUBCOMPOSITA, C. B. Clarke.— Ravines towards 
the centre of the island, not common. 
'Tropies of the Old World. 
MARISCUS MACROPHYLLUS, Brongn.—Taro-swamps in the upper part of the Tukavaine 
valley, not common. 
Society Islands. 
TonvLINIUM CONFERTUM, Ham. (Mariscus ferav, C. B. Clarke).—1n Taro-swamps and ` 
in moist places by the sides of streams, at Matavera, Ngatangiia, &c. 
All warm countries. 
FIMBRISTYLIS DIPHYLLA, Vahl.—Plentiful on open dry hills, and in sandy places near 
the seas. 
Most warm countries. 
FrwBRISTYLIS CYMOSA, R. Br., var. suBCAPITATA, C. B. Clarke.—Moist or sandy places 
near the sea, apparently not common. 
New Caledonia to the Sandwich Islands. 
GRAMINE.E. 
(I am much indebted to Prof. E. Hackel for examining and determining a set of my 
Rarotongan grasses, and for contributing the descriptions of the two new species. I have 
also to express my thanks to Dr. Otto Stapf for critical remarks on several of the 
species.) 
PASPALUM SCROBICULATUM, Linn.—Native name Mata. 
growing intermixed with Gleichenia dichotoma. 
Almost all warm countries. 
Dry hills, plentiful, often 
PASPALUM DISTICHUM, Linn.—Muddy places on the shore of Ngatangiia Harbour, not 
seen elsewhere. Identified from habit and foliage alone, the plant not being in flower at 
the time of my visit. 
All warm countries. 
* : i 
PasPALUM CONJUGATUM, Berg.— Fields and waste plaees at Avarua, not seen elsewhere ; 
most likely a recent introduction. 
Most warm climates. 
*PANICUM MAXIMUM, Jacq.—Largely cultivated by the natives as forage for their 
horses, and often holds its own in abandoned cultivations. 
Tropical Africa. 
