A linguistic challenge

[luzula]

Guess (without searching the web) the scientific subject whence these specialist phrases come: "subgynoecial innovation" and "succubously inserted".

Comments

[luzula]

It does kind of sound like someone penetrating a succubus. : )

Here is the actual definition.

[feroxargentea]

See, the paragraph in that link is why diagrams were invented :P