CT, Black Orchid won't cause any problems as long as the characters aren't the same. Example, if I nicknamed a character in a book "Spiderman" because he collected spiders I wouldn't have any problems either. But If I named him spiderman because he had some super hero spider powers then there would be a problem. :-)

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I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
-Galileo