"Matthiola" Quotes from Famous Books
 ... sea-weeds or Fuci. Gaertner, moreover, found that this difference of facility in making reciprocal crosses is extremely common in a lesser degree. He has observed it even between forms so closely related (as Matthiola annua and glabra) that many botanists rank them only as varieties. It is also a remarkable fact, that hybrids raised from reciprocal crosses, though {259} of course compounded of the very same two species, the one species having first been used as the father and then as the mother, ...
— On the Origin of Species by Means of Natural Selection • Charles Darwin |
