PL end. ph. 10. GRAMINE.E. 49. Agropyrum. 97 



31 Leersianum. Lomsfce oblong, mostly 5-flowered ; spa- 

 thelles and spatheUiiles awned ; awns twice the length of the 

 spathelle. 



Triticum Leersianum, Schrcher. 

 Triticum repens, Fl. Dan. 748. 

 Triticum sepinum, Thuill. Fl. Par. 67. 



IX. 50. TRITICUM. Pliny. Wheat: 



Locusta 1 sessile in each tooth of the rachis, 3 or 

 4-flowered ; 2 lower flowerets sessile, opposite, fertile ; up- 

 permost often abortive ; spathelles broad, boatshaped, nearly 

 equal, opposite, toothed, ending in a short bristle; spatuelkdes 

 lower, toothed, ending in a short bristle ; upper slightly 

 nicked ; lodicule ovate, not notched, hairy ; ovary bearded 

 at the tip ; style 2-parted ; stigmata feathered ; cariopsis 

 husked, furrowed. — Rachis toothed, jointed, spiked; spike 

 simple; locust ce crowded, imbricate. 



Fari7?n of the seed is in general use as food for mankind, 

 very nutritious on account of the gluten which it contains, 

 and which is in greater proportion in the wheats grown; 

 in warm countries than in cold ; setd used for the manu- 

 facture of starch, and it is malted and fermented into a kind 

 of beer called mum ; husks of the seeds used as a food for 

 horses and swine ; stratv cut into chaff given to horses as a 

 mechanical stimulus to the appetite. 



a. Car iopsis free ; rachis jiexible ; glume coriaceous* 



1. Triticum cc'stivum. Summer ivkeai. 



Spike parallel, compressed, bristled ; glumes glabrous, 

 bristled, truncated ; base contracted, plaited ; bristle from 

 the base, obtuse, very short. 



Triticum aeptivum, Rail Syn 387, 6 ♦ ; Lin. S. P. 126, 



Triticum friuiestre, Park. 1121, 



Triticum vulgave, Vill. Ddph. 2, 153. 



Triticum segetale, Salis. Prod. 27. 



Triticum vulgare a, Willd. Hort. Berol. 1, 135. 



Triticum sativum, Lam. Enc, Meth. 2, 554. 



Cultivated in fields ; annual ; sown in spring. 



Culm erect, many, glabrous ; leaves flat ; sheath round, 

 smooth ; ligulq truncated ; spike subquadrate ; locusta 

 smooth. 



|3. album. Spike white ; cariopsides white. 



y. alho-ruhrum. Spike white ; cariopsides veA, 



5". rubro-alhum. Spike red; cariopsides white, 



£. rubrum. Spike red ; cariopsides red. 



VOL. II, H 



