042 



POACE^. 



annuals or winter annuals with flat leaf-blades. Spikes terminal, 



cvliiulrical, or somewhat llattened. Speckles not over 10, I'ounil in 



the vieinity of tlie Mctliterraneiin Sea. 



The genus Triliciiin excludes A(/ro/)i/ron. Ihe species of wliich 



were at one time included in it, and now includes .Kyilopx. In 



Triticnin the lateral nerves of the floral gflumo are not connivent, 



but parallel or nearly so, and either stop sliort of the apex or are 



produced beyond it into distinct teeth or awns. There are three 



groups: 



I. U7/«;/,s in cultivation. Floral ulumes keeled at the apex and 



sometimes at the base, and terminate in a single awn; lateral nerves 



usually barely reaching to the end of the glume. 



3. ('rifliodium. Link. Spikelets with only 1 fertile flower, floral 



ghune keeled from the base and ends in a single awn. One s])e('ie3 



sometimes has two or even three fertile flowers, and the lateral 



nerves of the floral glumes sometinu'S produceil into sliori teeth. 



3. .Kf/ilop.^ L. DilTering from the cereal wheats in iiaving a 



floral glume more rounded on the ])ack and not at all keeled, lateral 



nerves of floral glume often produced 



into long awns; hybridizes freely with the 



cultivated wheats. 



1. T. vrL(.AKE Vill Hist. PI. Dauph. 



2:15;}. AViiKAT. 



This includes all the well-knoAvn races 



cultivated in this t'ountry, whether 



"bearded" or "bald,"' " i-cd clKitf " or 



"white chall'."' spring wheat or winter 



wheat. ^J'lie luitive countrv of this very 

 Fig. 123. — Triticiim milgare. ' . 



Spiki'let, (Hiclitmisou.) valual)le cereal is not Kiu)wn. it is not 



improbable that a wild plant of southern Europe known as 



^Egilops L. is the original form. 



143. (274). HORDEUM L. Sj). PI. 84 (IT.-);]). B.mm.kv. Citri- 

 eni Koel. Gram. ;52S (1802). Zcorrilun Heauv. Agrost. 114 (1812). 

 Crifcsion Eafin. Journ. Pliys. 89: 103 (181!)). Cri/Jw E. Mey. Ind. 

 Sem. ITort. Kogiom. 5 (1848). 



Spikelets 1 -flowered, 3 together, distichous, sessile or on short 



