504 98. GE AMINES. 



40. Crxosu'Rus Linn. Dog's-tail-grass. 



1. C. cristdtus (L.); raceme spikelike linear, fl. with a very 

 short awn. E. B. 316. P. 28. St. 1218 in. high. Spike 

 unilateral, plane-compressed. Spikelets closely placed. Bract 

 comblike. Pastures. P. VIII. E. S. I. 



[C. echindtus (L.) ; raceme contracted close ovate, awns about 

 as long as the pales. E. B. 1833. P. 28 & 129. St. erect, 

 1 2 feet high. Bract comblike with long points. Sandy 

 places in Guernsey and Jersey. A. VII.] 



41. DAC'TYLIS Linn. Cock's-foot-grass. 



1. D. glomerdta (L.) ; pan. -branches with ovate clusters of 

 spikelets, st. erect linear flat with rough margins, root cees- 

 pitose. E. B. 335. P. 29. A coarse grass. Pan.-branches 

 long, spreading or divaricate with fl., afterwards adpressed, dis- 

 tant ; each bearing an ovate cluster of spikelets ; or panicle 

 reduced to one cluster. Meadows. P. VI. VII. E. S. I. 



42. FESTTJ'CA Linn. 1 Fescue-grass. 



* Root-leaves very narrow. Ligule with round auricles. 

 Awn terminal. 



t Awn longer than the pale. Gl. very unequal. VULPIA. 

 \ Usually triandrous. 



1. F. uniglumis (Sol.) ; uppermost sheath far distant from the 

 erect close 2-ranked simple panicle, fl. compressed keeled, yl. rery 

 unequal of ten only one, larger gl. very long and very acute. E. B. 

 1430. P. 112. St. 612 in. high, erect, leafy nearly to the 

 top. Panicle close, short. Lower gl. usually scarcely di^- 

 tinguishable. Upper gl. setigerous nearly equalling 1st fl. on 

 same side. Sandy sea-shores. A. VI. E. I. 



\\ Usually monandrous. 



2. F. sciuroides (Roth) ; uppermost sheath far distant from 

 the erect-patent oblong pan., lowermost pan.-branch about equal- 

 ling \ pan., fl. terete rough, gl. unequal as 2 to 1, larger gl. about 

 equalling lowest flower. F. bromoides Sm., E. B. 1411. 



1 See Prof. Hackel's exhaustive Monographia Festucarum europK- 

 arum. H. & J. G. 



