CALAMAGROSTIS.] GRAMINE^E, 479 



Damp woods, local, from Mull and Aberdeen to Devon and Kent; Aran Island 

 and Derry in Ireland ; Channel Islands ; fl. July-Aug. Stem 2-6 ft., simple, 

 stout, scabrid above. Leaves very long, flat, scabrid, glaucous beneath, 

 point slender ; ligule acute, torn. Panicle 4-12 in., purplish-brown ; branches 

 suberect. Empty glumes \ in., very narrow, tip and keel scabrid ; awn pro- 

 duced for | its length beyond the fl. glume. DISTRIB. Europe (Arctic) 

 (excl. Spain), Himalaya, N. Asia. 



2. C. lanceola'ta, Roth ; panicle open, empty glumes lanceolate twice 

 as long as the flowering, hairs rather longer than the fl. glume, awn 

 terminal minute. Arundo Calamagros'tis, L. 



Damp copses, hedges, &c., from the Border to Devon and Kent ; fl. July- 

 Aug. Stem 2-4 ft., slender, erect, smooth. Leaves much narrower and 

 smoother than C. Epige'jos, more convolute ; ligule shorter. Panicle 2-6 in., 

 purplish ; branches spreading, tip drooping. Empty glumes nearly as large 

 as in Epigejos, but broader; awn minute. DISTRIB. Europe (Arctic), N. 

 and W. Asia. Andersson observes that the pedicel of an upper flower is 

 sometimes present. 



15. GASTRID'IUM, Beauv. 



Annual. Spikelets small, in a contracted panicle, 1-fld. ; rachilla 

 produced, glabrous. Empty glumes 2, subequal, gibbous at the base, 

 acute or shortly awned. Fl. glume minute, hyaline, truncate, toothed ; 

 awn dorsal or 0. Palea -narrow. Scales oblong, entire. Stamens 3. 

 Styles short, distinct, stigmas feathery. Fruit subglobose, shining, loosely 

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

 Africa, temp. S. America. ETYM. yao-TpiSeov, a ventricle. 



G. lendig'erum, Gaud. ; glumes lanceolate, awn exserted. Agrostis 



austra'lis, L. Nit-grass. 



Maritime sandy marshes, &c., from S. Wales, Warwick, and Norfolk southd. ; 

 Channel Islands ; (a colonist, Wats.) ; fl. June-Oct. Stem 6-10 in., densely 

 tufted, erect or ascending, slender, leafy. Leaves short, flat, scaberulous ; 

 sheaths smooth ; ligule oblong. Panicle large, 1-3 in., cylindric-fusiform, 

 dense, pale green, glistening; branches scaberulous ; pedicels swollen at the 

 top. Empty glumes % in., erect, very acuminate, the swollen base polished, 

 keel obscurely scabrid ; fl. glume white, shining, 4-toothed ; awn near the 

 top, very slender. DISTRIB. Europe, W. Asia, N. Africa. 



16. AP'ERA, Adans. 



Annual. Spikelets small, panicled, shining, 1-fld. ; rachilla produced, 

 glabrous. Empty glumes 2, unequal, membranous, acute, keeled, upper 

 3-nerved. Fl. glume shorter than the empty, membranous, hardly 2-fid 

 with a slender dorsal flexuous awn. Palea hyaline, 2-keeled. Scales 

 ovate-lanceolate. Stamens 3. Styles short, distinct, stigmas feathery. 

 Fruit narrow, free within the fl. glume and palea. DISTRIB. Europe 

 and W. Asia; species 2. ETYM. air-fipos, undivided, alluding to the entire 

 fl. glume. 



