Mountain Lady's Slipper Orchid (Cypripedium montanum)
When flowers have rows of radial or not-quite-parallel stripes, they often converge at the pistil and stamens - the flower's naughty bits - to establish runway markings for insects to follow so they can make the proverbial beeline for the pollination zone. What primitive brains bugs must have, to need this sort of guidance! It's no wonder that Homo sapiens (Earth's dominant species, as determined by a panel of Homo sapiens) rules the planet. They also use guidelines, of course, but for much more complex issues, such as pointing out where the middle of a road is or dividing large asphalt surfaces into spaces large enough to tempt cars to park in them but small enough to exact the maximum number of door dings. No other species even dreams of solving problems like these, so it's kind of surprising that plants don't rely on us to handle their pollination needs as well.
This Photo: In the Wawona Meadow area, mid June