20 BULLETIN 692, U. S. DEPARTMENT OF AGRICULTURE. 
and three-fourths the length of the lemma, rarely but half the 
length of the grain, obscurely striate, translucent, showing the 
grain, more or less adherent to the grain, rarely wholly adherent and 
transparent and therefore obscured till separated from the grain 
(fig. 3, 3); veins of the palet often 
distinct, sometimes scarcely evident; 
erain oblong in outline, often robust, 
mostly reddish brown and _ finely 
wrinkled, dry and mealy when 
crushed under slight pressure (fig. 5). 
SEED OF RHODE ISLAND BENT (AGROSTIS 
TENUIS SIBTH.; AGROSTIS VULGARIS WITH.). 
Lemma 0.04 to 0.07 of an inch in 
length, ovate-lanceolate to narrowly 
lanceolate in outline, narrowly point- 
ed at the apex, exceeding the grain 
Fia. 6.—Seeds of Rhode Island bent (Agrostis s 
tenuis), enlarged and natural size. In seeds by one-fourth or less of its length, 
aand 6 the palet is not wrinkled. In seeds pot, glistening, the upper half or more 
cand d the palet is wrinkled and translucent. fetanl t 1 t d sil 
In seed e the transparent, closely adherent of the lemma translucent and s very 
palet is obscured against the darker grain. white, opaque toward the base; the 
ne a ee surface of the lemma glabrous and 
finely striate longitudinally; the apex of the lemma usually distinctly 
three angled; an aborted awn occasional from near the apex or 
rarely not lower than the middle of the lemma, straight, not spirally 
twisted, rarely equaling the apex of the lemma, such awn-bearing 
lemmas sometimes four angled at the apex; seeds 
of some plants all or nearly all bearing similar 
awns, each awn arising between one-fourth and one- 
third the length of the lemma from its base, the 
awn bent near the apex of the lemma and spirally 
twisted below the bend; the lemmas thus awned 
four veined at the apex (fig. 7); palet sometimes 
not wrinkled, semitranslucent and striate, rarely 
equaling the grain, usually clearly shorter than 
the grain, between one-half and two-thirds the 
length of the lemma, or often scarcely exceeding 
half the length of the grain, usually wrinkled and —awned form of Rhode 
partially adherent to the grain, often wholly ad- ais Ce eee 
herent and transparent and therefore obscured 
till separated from the grain; veins of the palet commonly wanting; 
grain slenderly oblong in outline, dry and mealy when crushed. 
(Figs. 6 and 7.) 
Compared with seeds of redtop, the seeds of Rhode Island bent are, 
in general, more slender, smaller, less glistening, and lighter colored; 
