Android button refuses to reduce its size in a table?

I have a button that is in a table, but the button stretches across the screen, thereby stretching my image, making it ugly. I have tried wrap_content, fill_parent, and match_parent but they all give the same result. Here is my xml. Why doesn't the button reduce it's size???

              <?xml version="1.0" encoding="utf-8"?>
              <ScrollView xmlns:android="http://ift.tt/nIICcg"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:background="@drawable/bg2"
                    android:orientation="vertical" >


                   <TableRow>
                     <ImageView
                             android:contentDescription="@string/contents"
                             android:id="@+id/imageView1"
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:layout_gravity="center_horizontal|top"
                             android:paddingTop="10dp"
    android:src="@drawable/lesson1" />
  </TableRow>

  <TableRow>

      <TextView
          android:id="@+id/textView1"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/alpha"
          android:paddingLeft="15dp"
          android:textAppearance="?android:attr/textAppearanceLarge" />

  </TableRow>


  <TableRow>
        <TextView
          android:id="@+id/textView3"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="15dp"
          android:textStyle="italic"
          android:text="@string/alphanote"
          android:textAppearance="?android:attr/textAppearanceMedium" />

  </TableRow>


  <TableRow>
      <TextView
          android:id="@+id/textView2"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:text="@string/directions2"
          android:paddingLeft="15dp"
          android:textAppearance="?android:attr/textAppearanceMedium" />

  </TableRow>

  <TableRow>

      <Button
          android:id="@+id/Button1"
          android:layout_width="14dp"
          android:background="@drawable/playstart" />

  </TableRow>

  <TableRow>
      <TextView
          android:id="@+id/textView4"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:background="@drawable/alpha1"
          />

      </TableRow>
        </TableLayout>     
     </ScrollView>