The elementals of Aterrizar differ from the standard fantasy elemental in that they have permanent genders, and five genders at that. Composition, and general rules of summoning and control still apply to these elementals, but they are more fixed in their form, aside from the ability to interect with their native elements, or assume the form of those elements for a limited amount of time.
The Five Genders
Male - These are the craggy, and least humanoid of the elementals, and consequently have the most raw power. Shifting masses of roaring stone, and towering bonfires are their physical shapes, and are the most recognizeable. Most magi summon the male of the elementals for these reasons, though there is a trade-off as the male elementals are the least intelligent and more bestial of the courts. Male elementals can mate with any of the other four genders.
Amale - These elementals are counted as weaker than the male, but are still powerful in their own right. They can assume a human form and pass among humanity with some ease, but still have strong elemental tells, such as the smell of smoke, or dripping water where ever they go. Amales can reproduce with semales, females, and umales.
Semale - Similar to the amale, these elementals manifest in female forms, with the dryad being one of the best known. Hedonistic mages will summon semales as concubines and pillow toys. Semales can breed with males, amales, and umales.
Female - These elementals are the physically weakest, but possess the greatest knowledge, on par with the demon princes and celestial little gods. They are passive in the extreme are very hard to find. It takes the raw power and single minded determination of the strongest males and rare amales to find these elusive beings. Females can breed with any of the other four genders.
Umale - these are the strangest of the elementals, often existing as a pseudopod of their associated element. They have no humanoid features other than an occassional face, though usually there is some flaw such as too many or too few eyes, misplaced sensory organs and the like. Umales are the most manageable of the elementals and serve some sort of elemental 'sanitary' disposal function in the courts. Umales can breed with any gender, including other umales, though they are attributed a pariah status among other elementals.
In the case of the amale and semale, there is a good chance of cross-species fertilization, creating half-bloods. These individuals are invariably raised in the human realm as the strictures of the elemental courts would extinguish their human flesh and kill the half lacerated soul. Once they reach physical maturity, these half bloods are able to survive in their parents elemental court. Powers are common and vary from indiviual to individual. Good blood is no promise of powers just as a fast car is no promise of victory.
Elementals like the half-blooded as they represent hands in the mortal realm that can work to the betterment of their court and kin. Many a wood-blood has become a ranger or forestal to better protect a large wooded area, while some fire-bloods invariably become arsonists. no element is predisposed to good or evil, so the 'evil' arsonist can be easily counterbalanced by a 'good' smithy, or healers.