

Calamagrostis.] GRAMINEJE, 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 J in., very narrow, tip and keel scabrid ; awn pro- 

 duced for h 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. Arunclo 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. Epiye'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. — Distrtb. Europe (Arctic), N. 

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

 sometimes present. 



15. GASTRID'IUM, Beauv. 



Annual. SpiJcelets 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. — Distriij. S. and W. Europe, trop. 

 Africa, temp. S. America. — Etym. y<x<np>Zeov, 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 iu., cylindric-fusiform, 

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

 top. Empty glume* £ iu., 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. Paha 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-ftpos, undivided, alluding to the entire 

 fl. glume. 



