IX] 



" SEEDS ' 



149 



Kceleria cristata, Pers. (Fig. 62). 

 Palea 6 mm., keeled, entire, no awn but stiffly tapering, 

 ribbed, no hairs. Rachilla large. Fruit 45 mm. 



Fig. 61. Molinia ccerulea. u,, 

 " seed," nat. size ; b and c, 

 ditto, X about 8 ; d, the cary- 

 opsis, nat. size; e, ditto, x about 

 7. Note the compressed, keeled 

 and glabrous palea, and the 

 long slender bone-shaped ra- 

 chilla. Nobbe. 



Fig. 62. KceleHa cristata. a, 

 the "seed" (to the left) and 

 oaryopsis (to the right), nat. 

 size; 6, "seed," x about 7. 

 The palea is compressed and 

 keeled, and, like the large 

 rachilla, glabrous. Nobbe. 



** Palea not taper pointed, but mucronate, or two- 

 toothed, with a sub-terminal point or spine. 



Elymus arenarius. 

 Agropyrum repens. 

 Dactylis glomerata. 

 Sesleria coerulea. 



' Elymus arenarius, L. (Fig. 63). 



Fruiting palea lanceolate, 13 — 1.5 x 3 mm., tough and 

 stiffly hairy or velvety : 5 — 7 ribs. Rachilla stout, hairy. 

 Fruit hairy above, 5 — 11 mm. x 2'.5 x 1'2, somewhat grooved. 



