Sentence Examples

  • There are about twenty species, but the number cannot be very accurately defined - several, usually regarded as distinct, being probably merely variable forms of the same type, and the ease with which the trees intercross has led to the appearance of many hybrids.
  • Usually they are twinned on a prism plane, M, producing pentagonal stellate groups of five crystals; twinning on the plain g, in which the crystals intercross at angles of nearly 60°, is less common.
  • As these varieties intercross with each 1 See drawings made to scale by Mr Worthington Smith in the Gardener's Chronicle (25th December 1886).
  • De Vilmorin's experiments have shown that all the varieties will intercross, and that even such a distinct form as the Polish is no exception.