SECALE. CLXI. GRAMINEZ. 619 
A. APLULGIDES. Muhl. , 
St. 1—2f high, geniculate at base, ascending, terete; vs. linear-lanceo- 
late, smoothish beneath, pilose above; stip. short, truncate; spikes 4—6” long, 
20—40, on short, flat peduncles, thinly arranged in 2 opposite rows, each with 
4—8 spikelets; spikelets 2-flowered, arranged in 2 rows on the under side of the 
flat, partial rachis; glumes unequal, the lower awn-like and slightly adhering 
to the rachis; anth. 3, bright red; fr. oblong; abortive fl. pedicellate, empty.— 
2| Middle and Western States. Guilford, Conn., Robbins! 
Trizze 9. HORDEZ.—Infloreseence spiked. Spikelets solitary, in pairs, or 
several together, one, few or many-flowered. Glumes mostly two, equal and 
opposite, rarely unequal and alternate. Lower palea awned or awnless, up- 
per one with 2 keels. 
51. TRITICUM. 
Lat. tritum, rubbed or ground ; alluding to the manner of its preparation for food. 
Spikelets imbricated in 2 rows, sessile on the teeth of the rachis, 
about 5-flowered, with the upper flowers abortive; glumes 2, equal, 
opposite, ovate, concave, mucronate ; paleze 2, lower awned or mucro- 
nate; scales 2, collateral. 
1. T. sativum. 8. hybernum. Winter Wheat. 
St. round, smooth, the internodes somewhat inflated, 3—5f high; ls. 
lance-linear, veined, roughish above; stip. truncate; spike parallel, somewhat 
4-sided; spikelets crowded, broad-ovate, about 4-flowered; glwmes ventricose; 
awns of the upper palea generally longer than the flowers.—@ and @ This is 
without doubt the most valuable plant of the order; is universally cultivated, 
and may be regarded as naturalized. Many varieties are known to farmers, 
of which the most important are 
y. estivum. Summer Wheat. Glumes always awned.—@ 
6. compositum. Egyptian Wheat. Spike compound; spikelets awned. 
2. 'T. REPENS. (Agropyron. Palis.) 
St. trailing at the lower joints, about 2f high; dws. lance-linear, rough 
above and somewhat hairy; stip. short, truncate ; spike compressed, about 3’ in 
length; spikelets remote, alternate, lance-oblong, 5—6-flowered; glumes lanceo- 
late, 5-veined, acuminate—2 A vile Weed, in fields and gardens, extremely 
difficult to eradicate. June—Aug. § 
3. T. caninum. R. & S. Dog’s Couch Grass. 
St. 2—3f high, erect or oblique; dvs. flat, smooth; stip. almost wanting; 
spikelets about 5-flowered ; glumes 3-veined, and with the outer palea, terminat- 
ing in a straight, scabrous bristle, longer than the flowers.—Delaware, Muhlen- 
berg. Probably §. 
4. T. cristitum. Schreb. (Bromus cristatus. Linn.) 
St. erect, glabrous ; spike oblong, compressed, imbricated in 2 rows, about 
5-flowered, smoothish, spreading; alee subulate-awned.—Penn. Schweinitz 
(Beck, bot., p. 416). 
52. SECALE. 
Celtic segal, from sega, a sickle. 
Spikelets solitary on the teeth of the rachis, 2—3-flowered, the 2 
lower flowers fertile, sessile, opposite, the upper one abortive; glumes 
subulate, opposite, shorter than the flowers ; lower palea with a very 
long awn, upper often bifid at apex; scales abortive, hairy. 
S. Cereite. Rye. 
St. hairy beneath the spike, 4—6f high; Jws. lance-linear, rough-edged 
and rough above, glaucous; spike about 5/ long, linear, compressed; palee@ 
smooth, lower ciliate on the keel and margin; awns scabrous-ciliate, long, 
straight, erect—@ or @ The native country of this highly valuable grain is 
unknown. It has long been cultivated, and like the wheat, may be considered 
naturalized, June, July. 
