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6 Bulletm Number 12.4. , ` — » ·
I leaves. The rough cinquefoil (Potentillae memspeliensis) is fre- V . I
. _quent. The dandelion is not so common as would be expected,
- I probably because of the provision on its seeds for aerial‘_dissemina— .
i t tion. The seeds of a sedge, Oarex cephalophomharecfrequent in . _
.     samples of bluegrass seeds. I _ I .
We . i   ORCHARD GRASS AND ITS ADULTERAN,'|'S.I `
g   ` y Orchard grass is more often adulterated` in Kentucky than S
  . i I bluegrass. The grass is one of our most hardy and persistent forage Y
  plants, far exceeding in these qualities-the more generally used
I I   timothy. In the eastern part of Kentucky it is but little employed
l   l l for any purpose. Stock accustomed to bluegrass and timothy ignore
I ls     it entirely unless starved into eating it, and fine tufts of untouched
.   l t orchard grass are a common sight in our-bluegrass pastures where
_`V_       the bluegrass is cropped close to the groiind all about. In central I
j I    fg   Kentucky it is more highly valued, and`is grown very commonly,
    both for pasture and for seed. In.Christian County, it has at timesl
  i I   proved the chief dependence of farmers engaged in stockraising. ' _
      The seeds of orchard grass as placed on the market are enclosed
V;ji"jE,l 1 in the chaff or glumes in which they develop on the plant. The
    I J largest of these glumes is keeled along the back and with two nerves
Iligjj ·_‘.     along each side; at its upper end is a short·`bristle lroughened, as
    é seen under a lens, with short hairs, these extending down on the
    keel, becoming shorter towards the base. Inner margin of this
      keeled scale also fringed with short soft hairs, and the whole'sur-
    face is clothed with a microscopic down consisting of minute short I
    hairs, lying close against the surface, The concave inner scale —
  I bears along each side _a keel and is also clothed with microscopic o
    down. The larger scale measures about 0.27 inch, including the
    spine, which alone measures about 0.08 inch. When removed from S V
  , the chai the seed looks in color and form, not unlike a small grain
    of wheat. It is about 0.10 inch long by 0.02 inch in diameter, be-
  i ing brown in general, slightly blackish at base, fusiform, decidedly
    grooved along one side, the ends slightly pointed, thebase with a
    few short hairs. Fig. 3, A, B, (Q'.
  r Perennial Rye-grass (Lolium pmtezme) is one of the adulter-
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