What a wonderful place to be, this BHL! Here they have quite nice quality of pictures too. Just take a look at the original drawing of Microcystis parasitica. Not bad.
You can search in many different ways: General / Books/Journals / Authors / Subjects / Scientific Names / Citation Finder (BETA) or browse by Titles | Authors | Subjects | Map | Year | Collections. Searched for Microcystis parasitica and got 21 publications! With a direct link to the PAGE where this species was mentioned. Unbelievable! And it’s fast. Or maybe it’s just that the rest of the village is not hanging on the net right now…
They also have a Facebook site, where they say that their Mission is “The participating libraries have over two million volumes of biodiversity literature collected over 200 years to support the work of scientists, researchers, and students in their home institutions and throughout the world.”
I love you. ♥