TRITICUM. 207 



Pamelas careful observations on the inner glumes of the 

 lateral spikelets, which so materially differ from the 

 outer ones, while in the Wall Barley the inner and outer 

 glumes of the lateral spikelets are alike. 



Abroad it does not extend further north than the 

 Baltic ; it abounds along the shores of the Mediter- 

 ranean, and is unknown in America. 



It flowers in June and July. 



Genus XXVII. TUXTICTTM. 



Gen. Char. Inflorescence spiked ; rachis zigzag, toothed, 

 elongated; spikelets single, sessile, several-flowered ; outer 

 glumes two, ovate, bluntish, concave ; flowering glumes 

 similar to the outer ones ; palea resembling the flowering 

 glume, but not concave ; scales two, swollen at the base ; 

 filaments three, hair-like ; anthers pendulous, oblong, cloven 

 at each end ; ovary turbinate ; styles two, slender, reflexed ; 

 stigmas feathery ; seed ovate, oblong, blunt at the ends, 

 convex at the outer side, with a longitudinal furrow on the 

 inner. 



1. Triticum repens, Linn. Couch Triticum. 



(Couch-grass, Eng. Bot.) 



Eoot perennial, creeping extensively ; stems slender, stiff, 

 erect or ascending, two feet high ; leaves spreading hori- 

 zontally, often all to one side, dark green, pointed, roughish, 

 upper ones broader than those springing from the root ; 

 sheaths shorter than the leaves ; spike two or three inches 

 high ; rachis rough on the margins, zigzag ; spikelets oval, 

 containing four or five florets ; outer glumes narrow, stiff, 

 acute, or slightly awned, with four or five ribs ; flowering 

 glumes gradually shorter, with fainter ribs, the terminal 

 one very small ; palese with two green marginal ribs. 



