Zosporangium or Zoosporangium: How To spell?
The word Zosporangium is misspelled against Zoosporangium, a noun meaning "A spore, or conceptacle containing zoospores."
Zoosporangium has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings z & sporangium which should not be misspelled with single 'O'
Wrong Spelling:  z-o-sporangium  Correct Spelling:  z-oo-sporangium 
Check more misspelled words of Zoosporangium to spell it correct.