546 APPENDIX. 



* Sea Mat-grass — {Ammophila arundinacea.) 

 Underground stems extensively creeping. Straws and leaves eighteen inches 

 to three feet high, erect, and very stiif. Spike four to six inches long, dense, 

 tapering at each end. Fl. July. Common everywhere on the sand-hills. (Curtis, 

 iv. 585 ; E. B. viii. 520 ; hoth as Arundo arenaria.) 



f Small wood-keed — (Calamagrostis lanceolata. Flora, p. 432.) 

 Common at Southport. 



f Silvery Hair-grass — [Aira caryophyllea. Flora, p. 433.) 

 f Vernal Hair-grass — {Aira prcBcox. Flora, p. 432.) 

 Both species common on the sand-hills at Southport. 



CXLV.— THE SEDGE FAMILY. Cyperdcea;. 



* Sand-hill Carex— (CWea; arenaria.) 

 Underground stems very long and creeping ; flowering ones six to nine inches 

 high. Spikelets rather large, ovoid, crowded eight or ten together into a tei-minal 

 spike one or two inches in length. Fl. June, July. Abundant on the sand-hills 

 at Southport. (E. B. viii. 928.) 



* Soft Brown Carex — [Carex intermedia. Flora, p. 454.) 

 Abundant and fine in ditches at Southport. 



CLIV.— THE HORSE-TAIL FAMILY. Equisetacem. 



Variegated Horse-tail — [Equisetiim variegatum.) 



Stems slender, simple, or very rarely branched, six to eight inches high, the 

 central one sometimes taller. Furrows of the stem and teeth of the slieaths 

 eight or ten. Fl. July, August. Southport. Mr. Sidebotham. (E.B.xxviii. 11)87.) 



