Die Punctirung erscheint häufig auch dann, wenn sie selbst dem Stamm-Merkmale fehlt.
The dotting also frequently appears even in those cases in which it lacks from the parental trait.

lack = fehlt Fehlen has the sense of being absent from a set of things. The formulation shows that Mendel thought of heritable traits as being composed of several distinct elements. In this case, the hybrids exhibit an additional trait that cannot be found in either of the parent species.

parental trait = Stamm-Merkmale See p. 16, s. 14.