Ix] “SEEDS ” 173 
narrower, with toothed palea, tapering suddenly at the base and 
more awned. J”. heterophylla is much like F. duriuscula, but the 
palea less toothed, and it tapers gradually at the base. The whole 
group is very difficult, and needs attention. 
Fig. 80. Festuca Myurus. a, Fig. 81. Nardus stricta. Type 
Fcaed. nat. size; 0 and “c; of cylindrical ‘‘seed’’ with 
ditto, x about 6. Compare a terminal stiff awn, here 
Fig. 50. Nobbe. serrulate; c, ‘‘seed,” nat. size; 
a and b, ditto, x8. Compare 
Fig. 50. Nobbe. 
Nardus stricta, L. (Fig. 81). 
Outer palea tough and fused, 10—12 mm. long, narrow, 
lanceolate and tapering gradually into the stiff, serrulate, 
