192 



THE WHEAT PLANT 



VARIETIES OF T. dicoccum, Schubl. 

 GROUP I. INDO- ABYSSINIAN EMMERS. Coleoptile 4- (3-6) nerved. 



SECTION A. Speltae. Rachis fragile, 

 i . Ears bearded 



(i) Glumes white, glabrous ; grain red .... var. Ajar, mihi 



SECTION B. Tenaces. Rachis tough, 

 i . Ears bearded 



(1) Glumes white, glabrous ; awns white ; 



grain red ...... 



(2) Glumes white, glabrous ; awns black ; 



grain red ...... 



(3) Glumes white, glabrous ; grain purple 



(4) Glumes white, pubescent ; grain white 



(5) Glumes red, glabrous ; grain red 



(6) Glumes red, glabrous ; grain purple 



(7) Glumes dark brown or mottled, pubescent 



var. uncinatum, mihi. 



var.pseudo-uncinatum, mihi. 

 var. Arraseita, mihi. 

 . var. tomentosum, mihi. 

 var. rufescens, mihi. 

 var. Schimperi, mihi. 

 var. persicum, mihi. 



GROUP II. EUROPEAN EMMERS. Coleoptile 2-nerved. 

 i . Ears bearded 



(1) Glumes white, glabrous. 



i. Awns short ..... 

 ii. Awns long. 



a. Ears simple * narrow 



** broad and dense 



b. Ears branched .... 



(2) Glumes white, pubescent. 



i. Awns short. 



a. Ears simple 



b. Ears branched . 

 ii. Awns long. 



a. Narrow lax ears. 



* Awns straight 

 ** Awns bent, often black . 



b. Broad dense ears ; black awns 

 (3) Glumes red, glabrous. 



i. Awns short. 



a. Ears simple 



b. Ears with double spikelets . 



c. Ears branched . 

 ii. Awns long. 



a. Ears simple. 

 * Narrow 

 ** Broad and dense . 



var. tricoccum, Korn. 



var.farrum, 

 . var. liguliforme, 

 var. albiramosum, 



var. submajus, 

 var. Metzgeri, 



var. semtcanum, 



var. flexuosum, 



var. majus, 



var. Fuchsit, 

 var. Dodonaei, 

 var. cladurum, 



var. rufum, 

 var. pycmirum, 



Korn. 

 Korn. 

 Korn. 



Korn. 

 Korn. 



Korn. 

 Korn. 

 Korn. 



Korn. 

 Korn. 

 Korn. 



Korn. 

 Korn. 



