Committing a minimal test case in an effort to work out how to render points.

I can render one object from meatplants, but only when that object is a polygon :/
It's not the 'id' field...
It's not the entire 'properties' table...
Aha! The trick was that points require a different stylesheet than lines

That is, the styleArray for point data must contain an 'image' tag giving instructions for points
 (this was nonobvious; i had to find the three examples <http://ol3js.org/en/master/examples/draw-features.html>
 and <http://ol3js.org/en/master/examples/synthetic-points.html> and <http://ol3js.org/en/master/examples/icon.html>
 which actually render points instead of polygons and tiles and use guesswork from there.

So: 'image' can be something like an ol.style.Circle or an ol.style.Icon and from there
  openlayers is agnostic about what is in a single layer: it is perfectly happy to take points
  or lines or polygons at once -- that is, a single style array can contain both instructions
 'image' for points and 'stroke' for lines.
Render meatplants onto the map :)