RIVET OR CONE WHEAT 251 



Kornicke received samples as " Giant wheat " from an exhibition in Denver, 

 Colorado, U.S.A. 



A dense-eared form of wheat from Baluchistan has been referred to var. 

 melanatherum by Howard. 



The Ble G-aragnon du Languedoc, cultivated in the south and north-west 

 of France, is a form of this variety or of var. nigrobarbatum . 



1. Received from Italy and Greece. 



Young shoots, semi-erect ; young leaves pubescent. 



Straw, tall, 130 cm. (about 51 inches) high ; upper internode hollow. 



Ear, long and lax, 9-10-5 cm. long, square, 12-13 mm. across the sides ; 

 spikelets 22-24, 3~grained ; 0=25-28 ; awns 14-15 cm. long (Ear type i, Fig. 

 158). 



Empty glume, 9 mm. long, with a black line along the outer margin ; apical 

 tooth short and blunt (i, 8, Fig. 152). 



Grain, mealy, large, dorsal ridge prominent ; 8 mm. long, 4 mm. broad, 3-9 

 mm. thick. 



2. Carosellone del Molise. A well-marked form received from Italy ; 

 similar forms also from Spain and Greece. 



A form from Spain under this name has red grains (see below, var. nigrobar- 

 batum, Desv.). 



Young shoots, erect or semi-erect ; young leaves pubescent. 



Straw, tall, 132 cm. (about 52 inches) high ; upper internode hollow with 

 thick walls. 



Ear, 6-5-8 cm. long, dense, compressed, 10-12 mm. across the face, 15 mm. 

 across the 2-rowed side ; spikelets 23-25, 2- to 3-grained ; D =38-44 ; awns 9-10 

 cm. long, black at the base, the upper half pale (Ear type i, Fig. 158). 



Empty glume, 7 mm. long, apical tooth acute, in some cases blunter, 1-2 mm. 

 long (Forms i, 4, Fig. 152). Sometimes the glume is entirely white ; usually, 

 however, there, is a narrow black line along the outer margin, and in some 

 seasons the dark pigment spreads over the rest of the glume ; these colour 

 variations are found in plants raised from a single ear. 



Grain, mealy, apex truncate, dorsal hump prominent, radicle end sometimes 

 dark brown ; 7-8 mm. long, 3-5-4 mm. broad, 3-5-4 mm. thick. 



Ear bearded, simple ; glumes white, glabrous ; awns black ; grain red. 



T. turgidum, var. nigrobarbatum, Korn. Handb. d. Getr. i. 60 (1885). 



Kornicke obtained this variety from Spain, and Werner mentions its cultiva- 

 tion in the south of France. 



Flaksberger states that a winter form of it is found in the Tiflis and Baku 

 Provinces of Transcaucasia. 



I have had it from Greece, Spain, and the United States. 



i. Phillipino, received from the United States of America, and forms sent 

 from Spain and Greece, belong to this variety. 



Young shoots, semi-erect ; young leaves pubescent. 



