476 GRAMINE^S. [PHLEUM. 



** Empty glumes gradually pointed ; fl. glume 3-nerved, with the pedicel 

 of a 2d at its base. 



3. P. arcna'rium, L. ; upper sheaths inflated, panicle cylindric-oblong 

 narrowed at the base, empty glumes hardly awned, keel ciliate above. 



Sandy dunes, &c., local, from Aberdeen (E. Scotland only) southd. ; Ireland ; 

 Channel Islands ; fl. May-June. Annual, glabrous. Stems 2-6 in., crowded, 

 leafy. Leaves broad, flat ; sheaths smooth ; ligule long. Panicle f-1 in., 

 most contracted at the base, glaucous. Spikelets T a ^ in., crowded ; empty 

 glumes lanceolate, acuminate, punctulate ; fl. glume very small, hairy ; 

 anthers minute, short, yellow. DISTRIB. Europe, W. Africa. 



4. P. phalaroi'des, Koel. ; sheaths hardly inflated, panicle cylindric 

 long, keel of shortly awned empty glumes almost smooth or ciliate. P. 

 Bcehmeri, Schrad. (not Wibel). 



Sandy and chalky fields, Norfolk and Bedford to Essex and Herts ; fl. July. 

 Annual, glabrous. Stems 10-18 in., ascending, smooth. Leaves short, flat, 

 scabrid, rather glaucous ; upper ligules long. Panicle 2-4 in., rather narrow, 

 obtuse, green, slightly interrupted. Spikelets ^ in., fascicled; empty 

 glumes linear-oblong, obliquely truncate below the short rigid subulate 

 awn, very coriaceous, green ; margins white, punctulate ; fl. glume minute ; 

 anthers linear-oblong. DISTEIB. Europe, N. Asia. 



11. MIBO'RA, Adans. 



A minute annual. Spikelets minute, subsessile, laterally or distichously 

 arranged on a simple slender flexuous rachis, dorsally compressed, 1-fld. 

 Empty glumes 2, a little exceeding the flowering, broad, subequal, concave, 

 not keeled, truncate, awnless, membranous, 1-nerved, upper next the 

 rachis. Fl. ghime hyaline, very hairy, truncate, 5-nerved. Palea 2- 

 nerved or 0. Scales 2, very minute. Stamens 3 ; anthers short. Ovary 

 glabrous ; styles 2, very long, stigmas slender hairy. Fruit ellipsoid, 

 compressed, enclosed in the fl. glume and palea. DISTRIB. W. Europe 

 from Hanover to Spain and Italy, 1ST. Africa. ETYM. unknown. 



M. ver'na, Adans. ; stems capillary. Sturm' ia min'ima, Hoppe ; 

 Knap'pia agrostide'a, Sm. ; Chamagros'tis min'ima, Borkh. 



Wet sands, especially near the sea, Anglesea ; Channel Islands ; formerly in 

 Essex; naturalized in Haddington ; fl. March-April. Stems 1-3 in., tufted. 

 Leaves short, strict, setaceous, scaberulous, obtuse, margins involute ; sheaths 

 white, inflated ; ligule short. Spike J-l in. 



12. AGROS'TIS, L. BENT. 



Spikelets very small, in an open or contracted panicle with whorled 

 branches, 1-fld., rachilla not produced. Empty glumes 2, exceeding the 

 flowering, unequal, membranous, awnless, convex, keeled. FL glume 

 hyaline ; awn slender, dorsal, or 0. Palea 2-nerved or 0. Scales glabrous, 

 entire. Stamens 3. Styles short, stigma feathery. Fruit enclosed in 



