494 _ CXLIV. GRAMINE X. [ Setaria. 
Fruiting glumes smooth and shining, the minute transverse wrinkles 
visible only under a lens.—Reichb. Ic. Fl. Germ. t. 47; Panicum 
viride, Linn.; Trin. Spec. Gram. t. 203; Pennisetum viride, R. Br. 
Prod. 195. 
N. Australia. Dampiers Archipelago, 4. Cunningham (an exceptional form 
with spikes 3 to 4 in, long). 
Central Australia. cDonnel Range, Giles. 
W. Australia, Drummond. 
Widely spread as a weed in many parts of the Old World, but not so common as 
S. glauca and S. verticillata. 
.. 
Gram. t. 202; Pennisetum verticillatum, R. Br. Prod. 195; F. Muell. 
Fragm. viii. 110. 
N.A alia. Dampiers Archipelago and Nichol Bay, Walcot, 
ustrali 
. Australia, Drummond. 
A common weed of cultivation in warm and temperate countries, in many places 
probably of modern introduction. 
6. PLAGIOSETUM, Benth, 
of partial panicles or involucres, not awned, the involucres few and 
rarely bearing a second spikelet. Glumes 4, the outer one short, t 1 
2nd and 3rd empty. Ue distinct. Nut enclosed in the hardene 
The genus is limited to a single species, endemic in Australia, allied to Setaria and 
Pennisetum, but with the involucre very different from either. 
1. P. refractum, Benth. n Hook. Ic. Pl. t, 1242— Apparently an- 
