· ’ lf
e Adultemmis and Weed Seeds 0f Seed Samples. 9  
@8* probably because of the fact that the grass, when encouraged, ` A
an keeps most other plants suppressed. But of all the forage seeds ex- ‘
HY amined, it yields most cheat seed, and must be a. very effective agent `Z
lbt for the dissemination of this weed. Fig. 7, B, C. Sour and curled i
*3-T dock and ox—eyeidaisy seed have also occasionally been found in V _
he A , samples. ‘ T . -, p
all · '
  _ RED CLOYERV AND ITS ADULTERANTS.
ud _ pl The law specifies Yellow Trefoil (Medicago Zupulina), and .
let sweet clovers, Melilotus alba, and M. ofjtcindlis, as adulterants of
I-Q _ the seeds of red clover. Theseeds are not so frequently adulterated
BI. as would be expected, but are often of very inferior quality, and A
.a_ - quite as frequently badly mixed with weed seeds. v?
The seed of red clover is somewhat kidney-shaped, being a
me I little flattened, broader at one end, one margin being incised more
is ` or less. About 0.07- inch ,long, 0.06 wide and 0.04 thick. The
ly color ranges from pale yellow or green to uniform brown or deep
VS purple. On most seeds a line of purple extends from the scar
Q_ toward the small end of the seed. _ The general color of samples
Jl ./ varies a good deal too, the prevailing hue being sometimes more yel-
;€ _ low, and again more purple or brown. Fig. S, A. 5
it Yellow Trefoil (Nedicago Zupztlrina) is said to be very common- '  
In y ly employed for adulterating red clover seeds. We have not found A
PH it so in Kentucky. though we have had some adulterated samples.
id . \ The plant is rather small,`slighter even than white clover, with
LG ‘ slender leaflets andlsmall heads of yellow flowers. The seed can
n . readily be recognized when with red clover seeds by its greater
Y ` · roundness, and by a small but well-defined nipple-shaped promin-
?’ ` I ence beside the scar. The shape of the seed does not vary as much
°` Q as does that of clover, nor do-es the color, the latter ranging from L
5; pale greenish yellow to brown, though deep brown seeds are often 2
' . somewhat shriveled, showing them to be imperfect. A typical seed {
Q ‘ _ measures 0.08 by 0.06 by 0.04 inch, while another approaching more
i _ nearly the shape of red clover seed measures 0.08 by 0.05 by 0.04.
Its size and shape are so nearly that of red clover seed that it will
be passed when mixed with red clover seeds by the best and most
> intelligent of seedsmen. The nipple-shaped prominence, while evi-