IX] "seeds" 171 



■»-+++ Palea seven-rihhed, smooth. 



Brachypodiurn pinnatum, 



Bracliy podium, pinnatum, L., is similar, but the palea 

 more open and boat-like and narrows more suddenly 

 above into the smooth awn which is shorter than itself 

 (Fig. 77). Length 8 — 9 mm. The caryopsis is, however, 

 much more slender than in Agi^opyrum. 



For distinction from B. sylvaticum., see above. The inner palea 

 is ciliate and more delicate than in Agropyrum. 



= = Palea? rolled round the " seed " which is terete 

 and tapering gradually into a stiff awn. 



A Awn longer than the palea. 



Festuca Myurus. 



See also Festuca ovina, Cynosurus, &c., p. 147, and Arimdo. 



Festuca Myurus, L. (Fig. 80). 



"Seed" 5 — 7mm. without the long (10mm.) awn, 

 tapering and slender (like JSfai^dus), grey or brown. Finely 

 mamillate upwards. Rachilla small. 



A A Awn shorter than palea. 



Festuca ovina (var. rubra). 



Nai^dus stricta. 



Aira Jlexuosa, Molinia and other moor-grasses occur with these 

 narrow-leafed Fescues, but are easily distinguished : Molinia by 

 having no awn and being shorter and stouter, and Aira Jlexuosa by 

 the dorsal awn and basal hairs. 



Festuca rubra, L. (Fig. 78). 



"Seed" pale brown with rosy tinge, 3 — 5mm. long 

 without the awn, smooth, or slightly hairy upwards. 

 Caryopsis 2 — oo mm., compressed, with a shallow broad 



