In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

In humans , the pigmentation of the iris varies from light brown to black , depending on the concentration of melanin in the iris pigment epithelium ( located on the back of the iris ) , the melanin content within the iris stroma ( located at the front of the iris ) , and the cellular density of the stroma .
In humans , the pigment of the iris varies from light brown to black .

Mo ̈ nstera ̊ s Municipality ( " Mo ̈ nstera ̊ s kommun " ) is a municipality in Kalmar County , south-eastern Sweden , with its seat located in the town Mo ̈ nstera ̊ s .
Mo ̈ nstera ̊ s Municipality is a municipality in Kalmar County in southern Sweden .

The naming of cultivars is an important aspect of cultivated plant taxonomy , and the correct naming of a cultivar is prescribed by the Rules and Recommendations of the " International Code of Nomenclature for Cultivated Plants " ( ICNCP , commonly denominated the " Cultivated Plant Code " ) .

There is a system of naming run by the International Code of Nomenclature for Cultivated Plants ( the ICNCP ) , commonly known as the Cultivated Plant Code .