358 TRIANDRIA DIGYNIA. Hofdcum, 



ry like R. ThomcEa and setavea ; and were they not two-flowered in 

 the same calyx I should no doubt have taken it for R. iiicurtata, 



Limi. 



Culms scarcely more than may be called the scapes of the spikes, 

 the whole plants being but two or three inches high. — Leaves ma- 

 ny, filiform ; rachis rigid, and with the sheaths somewhat pilose. — 

 Spikes terminul, solitary, subulate, about two inches long. Rachis 

 not jointed, but alternately excavated on the opposite sides for the 

 reception of the ilowers. — Calyx two-valved, two-tlowered ; valves 

 very unequal, the exterior being many times larger than the inner 

 one, which is a minute scale in the bottom of the excavations of the 

 rachis, and not readily detected. — Florets two in each calyx, both 

 hermaphrodite, one-sessile and the other short pedicelled, each with 

 a coiol of two equal membranaceous, smooth valves. 



IIORDEUM. Schreb. Gen. N. 129. 



Caly.v lateral, two-valved, valves narrow, accuminatc, distant, al- 

 together forming a six-leaved involucre, one-flowered, by threes at 

 each toothlet of the rachis. 



1. H. hexastichon. Linn. Sp. PL el Willd. \. 473. 



All the flowers hermaphrodite and awned, placed regularly in six 

 rows. 



Sans. -zcT'' ^^u\a, f^^^:, SitMshooka. 



Beng. Jiiha. 



Arab. She-eer. 



This species is much cultivated in most of the temperate parta 

 of Hindoostan during the cool season. 



Obs. I have had speciriaens and abundance of seeds of this and al- 

 so of what I consider to be Siberian Barley (H. coeleste) both ga- 

 thered in 1818 in Tartary, the latter in Dapa, by my highly esteem- 

 ed friend Capt. W. S. Webb, surveyor at Kemaoon, who has favored 

 me with the following observation on them : " These two sorts of 

 Barley are called Oo-a, and deserve to be particularly examined. 

 Thov are not known in the low lands of India, prodnrc the hardiest 



