@Dave Griese: While you're correct that 'oosperm' is the standard pluralization of itself, it appears that 'oosperms' is also technically correct, albeit slightly archaic. The site below cites several uses of it in reputable publications around the turn of the 20th century:
http://www.lexic.us/definition-of/oosperms
Also, Scrabble considers it to be a legal word to play:
http://www.scrabblefinder.com/word/oosperms/
@B Skain/Alexander Shaytoon/Sean O'Driscoll: Where are you all seeing 7 R's / an R used as a blank? I've gone through several times and only count 6, and they all have the '1' in the corner indicating they're non-blanks:
Highest Single Move "Words With Friends" Score
@Dave Griese: While you're correct that 'oosperm' is the standard pluralization of itself, it appears that 'oosperms' is also technically correct, albeit slightly archaic. The site below cites several uses of it in reputable publications around the turn of the 20th century:
http://www.lexic.us/definition-of/oosperms
Also, Scrabble considers it to be a legal word to play:
http://www.scrabblefinder.com/word/oosperms/
@B Skain/Alexander Shaytoon/Sean O'Driscoll: Where are you all seeing 7 R's / an R used as a blank? I've gone through several times and only count 6, and they all have the '1' in the corner indicating they're non-blanks: