I'm studying some old plant cultivar names. One of the rules for botanical latin is that if an epithet is a latin adjective, it has to agree with the gender of the genus. I'm not sure how to apply this to an epithet that contains multiple adjectives, either separately or hyphenated.
For a feminine genus (ending in -a), what would be the correct way to decline the following?
- "Albo Lineata". Should the "Albo" be "Alba", so that it's also feminine? Or does only the last adjective need to be the correct gender?
- "Albo-lineata". Is this treated differently from the case above because of the hyphen? Should it be Alba, or does that not matter because it's combined with another word?
- "Albolineata". I assume the "albo" part shouldn't be changed here because it's in the middle of a word, right? Even though the word is originally a compound of two adjectives of different genders?
In summary, my question is: how do you decline multiple adjectives? And are the rules different if those adjectives are separate, hyphenated, or compounded into one word?
Edit to clarify: These are cultivar names, not species. As such, they need to follow the ICNCP rather than the ICN. That code allows for multiple-word and hyphenated names (as well as names in languages other than Latin). But it has a rule that if a name is an adjective in Latin form, then it must match the gender of the genus.