Zuzu,
Thanks, perhaps I misspelled it. And I had never noticed the alphabet at the top of the page, I went back and found it easily. Obviously it cannot be programmed to find misspellings.
And I am never sure whether I should search, as I do not always know the genus, Semps, Jovis or Hueffls etc..
Thanks you for that brief tutorial, I think it will help me find things more easily.