There is no better guide to Arisaema than The Genus Arisaema: a Monograph for Botanists and Nature Lovers. Abjuring blither, it codes the traits on which taxonomic choices are made, making them explicit. Subtle, one-time observations also abound. Guy Gusman makes a point of sharing authorship with Liliane Gusman, his wife. By now there are two editions. Paige Woodward paige@hillkeep.ca http://www.hillkeep.ca/