a 
Fic. 55. Limnodea arkansana (Nutt.) ‘Dewey. —a, A spikelet; b, the flower- 
ing glume and palea; ¢, @ spikelet of Limnodea arkansana vat. pilosa. 
"55. LIMNODEA Dewey in Contr. U.S. Nat. Herb. 2: 518. 189. (Th 
Benth.; Greenia Nutt., not W. & A.) pence tan 1-flowered, saiasagherodien: 
Empty glumes 2, rather rigid subequal, awnless; the flowering glumes a little 
oo 
th 
the teeth; awns slender, geniculate, fi 
‘base. Palea a little shorter than the neg ptenontes lume, hyaline. Stamens 3. 
Styles short, distinct; stigmas shortly plumose-. Grain narrow, oblong, incl 
within the rigid fruiting glume, free. Slender. pce ct 
_ decumbent at the base. ee tro 
soars few re or pubescen 
tees 
‘df 
