According to a book which I'm currently reading, "when a variety or subspecies is attributed to a species, the typical form automatically receives a variety name -- the same name as the specific epithet." The example given is Magnolia macrophylla var. macrophylla in which where there are other varieties such as var. ashei and var. dealbata. 1. Is this the official ICBN convention? 2. Is it accepted practice to refer to the typical form using the original and shorter name as a shorthand? This appears to be the case. For instance. I've never seen Osmanthus fragrans written any other way and it has many varieties.