286 TRIANDRIA DIGYNIA. Pailicum. 



er, and woolly from the middle down, the other sort are small- 

 er, and without wool or hair. Calyx one or two-flowered, 

 as in the last; exterior valve minute, the other two as long as 

 the corol, of which the apex of the exterior one is somewhat 

 three-toothed. Seed smooth, very like common oats, but 

 smaller. 



Obs. It differs from P. Polyslachyon in having- the invo- 

 lucels scattered round the pedicels and flower. It may there- 

 fore be Rumph's gramen caricosum, vol. vi. I. 7. J'. 2. A. 



7. P. interruptttm. Linn. sp. pi. ed. Willd. i. 341. 



Culms above water erect. Spikes simple, cylindric ; flowers 

 crowded, smooth, polygamous; seed smooth. 



Beng. Nardwla. 



Teling. Wolam. 



A very large species, grows in deep standing water. 



Culms ramous, those parts under the water swelled, as 

 thick as the little finger, with many fibres from the joints; the 

 parts above the water erect, about as thick as a common 

 quill, from two to four feet high, smooth, involved in the 

 sheaths of the leaves. Leaves, sheaths longer than the joints, 

 smooth. Racemes or spikes simple, erect, columnar, from 

 four to six inches high. Flowers small, oval, pedicelled, nu- 

 merous, generally many, from nearly the same place. In- 

 volucre entirely wanting/ Calyx two, inner glumes striated, 

 from six to seven-nerved. Corol, the small flower is present 

 here. Seed oblong, smooth, shining, white. 



8. P. curvatum. Linn. sp. pi. ed. Willd. i. 352. 



Culms erect. Spikes curved ; flowers crowded, smooth, 

 hermaphrodite ; seed smooth. 



Grows about the borders of lakes. 



Culms numerous, ramous, erect, as thick as a crow's quill, 

 from two to three feet high, smooth. Leaves numerous, very 

 long, slender, and smooth. Racemes, or spikes columnar; 

 lower part somewhat ramous ; branchlets ad pressed. Flowers 



