GRASS FAMILY. 393 
1. H. vorea’re, L. Spikelets all fertile, arenes mite florets arranged 
so as to form a nearly four- (or somewhat 6-) sided spike. 
Common Horpeum. Barley. Four-rowed ph 
Fy. Orge commune. Germ. Gemeine Gerste. Span. Cebada. 
Root annual, Culm i 38 feet high, smooth. Leaves 6-15 inches long, lance-linear. 
Keeled, striate, smoothi nerved, smooth, auriculate at throat ; ; ligule very short. 
bout 3 inches long, futher thick and somewhat 4-sid ided ; rachis compress essed, smooth, 
eahnerer? on the ma) 
elds : cultivated. Native of Sicily and Tartary. Fl. May. Fr. June. 
Obs. The oe oe ah aege of bss species en all feta the spike 
often of a six-sided ap dI understand 
that tin Western Now-Yo rk—— Si pees at Bar a ean | Fh eee: 
it is usually called Six-rowed ope Derg or name atch, seem 
indeed, it be really d This a nd the followi wing species 
cultiv ted a eiseuabealys in the “mnie and euthons 
exclusively for the Breweri The grain is rarely given to cattl 
Barley bread is unknown in the United States. The plant requires a 
good soil,—and hence serves as a kind of index to the quality of the 
farms in Pennsylvania : the fallow crop on good land being y 
soit sro the toe occupants of a poor soil have to be content with a 
‘crop of Oats. 
2. H. pis’ricnum, L. Lateral spikelets sterile, awnless,—the fertile 
ones awned, distichous or forming a two-sided spike. 
Disticuous Horpeum. Two-rowed Barley. 
annual. Culm 2-3 feet high, smoo smooth. — 6~15 inches long, nena 
heryed, scabrous on the upper surface ; sheaths neryed, smooth, ‘with 2 lanceolate, auricu- 
late appendages at throat ; ligule short, truncate. oT Spike 8 4 inches long, compen oe 
ancipital, linear ; rachis flat smooth, hirsute on the margin.@ 
Native of Turtary. Fl. June. Fr. Ju uly. 
Obs. This species is something later than the preceding, in coming to 
maturity ; sia on that account is preferred by many farmers in Penn- 
sylvania,—as it interferes less with their Hay crops. It also stands bet- 
ter than the preceding, after it is ripe,—a Phe a heavier grain— 
though not a greater quantity. The seed, of both species, is is uonally | 
sown (in Pennsylvania) about the last of March. ee 
22. AVE/NA, L. Oar. 
[The classical Latin name.] 
