The most restricted is A. cilicicus, which is known only from a single locality in southern Turkey.
About 400 species are currently known (with more being discovered every year), and as many as 15 different species can be found at a single locality.
Clarkia species are capable of self-fertilization, which facilitates the propagation of the chromosomal mutants in different sets of individuals even within a single locality.
Of the 18 Begonia L. species from Sabah, Borneo associated with limestone substrates, 12 (67%) are only known from a single locality (Kiew2001).
On the other hand, such macro data has no place when you're looking at the formation of clouds over a single locality, or why a storm seems to have struck with unnatural fierceness there.
If O. sativa were the result of a single domestication event, then all alleles in O. sativa should trace back to the alleles present in a single locality in O. rufipogon, producing a pattern similar to that in Fig. 5a.
Up to four species of the group may occur in a single locality.
However, few species have been thoroughly studied to date, and most research has been preliminary and restricted to a single locality.
Vulcanodon is known only from a single locality on an island in Lake Kariba, the largest artificial lake in the world, in northern Zimbabwe (formerly Rhodesia).
For example, it occurs widely, though localized, in Aragón, where Myotis sp. A (the only other species in the M. nattereri complex to occur there) is known from a single locality only.
During 2009, Steven Goodman and colleagues published two papers that found a total of five genetically and morphologically distinct species within Miniopterus manavi as defined by Peterson and colleagues (1995), up to four of which can be found in a single locality.
