212 



THE WHEAT PLANT 



5. Glumes red, glabrous ; awns red. 



a. Grain white 



b. Grain red . 



6. Glumes red, glabrous ; awns black. 



a. Grain white 



b. Grain red . 



7. Glumes red, pubescent ; awns red. 



a. Grain white 



b. Grain red . 



8. Glumes red, pubescent ; awns black. 



a. Grain white 



b. Grain red .... 



9. Glumes blue-black, glabrous. 



a. Grain white 



b. Grain red ...... 



10. Glumes blue-black, pubescent. 



a. Grain white ..... 



b. Grain red ...... 



(2) Ears beardless 



1. Glumes blue-black, glabrous ; grain white. 



2. Glumes red, glabrous ; grain white . 



var. hordeiforme, Korn. 

 . var. mur dense, Korn. 



var. erythromelan, Korn. 

 var. alexandrinum, Korn. 



var. italicum, Korn. 

 var. aegyptiacum, Korn. 



. var. apulicum, Korn. 

 . var. niloticum, Korn. 



var. provinciate, Korn. 

 . var. obscurum, Korn. 



var. coerulescens, Korn. 

 var. libycum, Korn. 



var. australe, mihi. 

 var. sub-austrah:, mihi. 



Ear bearded ; glumes white, glabrous ; azvns white ; grains white. 



T. durum, var. leucurum, Korn. Handb. d. Getr. i. 69 (1885). 



One of the most widely cultivated varieties. It is extensively grown in 

 Italy, Spain, and Portugal, the majority of the forms of these countries having 

 long ears (8-10 cm.), which are comparatively lax (D = 24-28) and almost square 

 in section. 



It is also found in considerable amount in Asia Minor, but the forms met 

 with in this region have shorter and denser compressed ears, 5-8 cm. long ; 

 D = 34-40; oblong in section. 



I received lax-eared forms from the Punjab, with ears 9-10 cm. long ; D = 21- 

 23. Some of them are not far removed from the Indian forms of T. dicoccum. 



1. Punjab 3. 



Ear, lax, about 10 cm. long, almost square in section, 10-11 mm. across the 

 face and side'; awns somewhat slender, 12-14 cm. long ; spikelets 21-23 ; 

 D = 21-23 (Ear types i and 2, Fig. 142). 



Empty glume, n mm. long, apex blunt, apical tooth short, blunt, secondary 

 nerve distinct, and ending a short distance from the base of the apical tooth (3, 

 Fig. 138). 



Grain, flinty, long, and narrow, 9-4 mm. long, 2-6-3 mm. broad, 2-6-3 mm. 

 thick. 



2. Trigo fanfarron. Received from Spain. 

 Young shoots, erect ; young leaves glabrous. 



Straw, tall, 125 cm. (about 49 inches) long ; upper internode solid. 



