108 



THE TRUE GRASSES. 



dwarf, prostrate grass with the base of the panicle en- 

 closed in the inflated upper leaf-sheath. Stamens two, 

 alternating with the flowering glumes and palea. Grain 

 projecting beyond the flower. 



Species one (C. siihtilis Seid.) (Fig. 50), on the muddy 

 banks of rivers, lakes, and ponds. Distribution remark - 



Fio. 50. Coleanthiis subtilis Seid. 

 (After Nees, Gen. Germ., I. 27.) 



FIG. 51,Sporobolus 

 pungens Kunth. Br. t 

 Mature spikelet ; K t , 

 K y , Fruit, opened and 

 discharging the seed. 

 (After Nees.) 



able : Bohemia, Moravia, Lower Austria, Tyrol, France, 

 Norway, Amur, Oregon, and Washington. 



122. (125) Phippsia Brown. Dwarf ; panicle mostly 

 enclosed in the leaf-sheath ; spikelets minute ; stamen 

 one. 



Species one (P. dgida Br.), in the arctic polar regions, 

 also on the higher Fjelden. 



