Thanks, Arnold. You have saved us some potential embarrassment. Algae? Algae! Aren't they sort of low-down the totem pole of life and slimy? We shouldn't have to share our word with them: people might confuse us. We should have our own word. Let's call ours spiladophytes or epispilads (epispiladic as an adjective), from the Greek word for a rocky place, a cliff, the rocks on which the surf crashes and so on. If you guys don't buy it, I'll offer it to the rock garden people. I can hear them now: "Spiladophytes as trough plants", "Spiladophytes of the Euaizoon (five syllables, please) Section of the Genus Saxifraga", "Calcifuge Epispilads for Beginners", "Winter Study Weekend Topic: Epispiladic Epiphanies in the Dolomites" and as the true sign of acceptance, "Spiladophytes for Dummies". The world awaits us! Jim McKenney jimmckenney@starpower.net Montgomery County, Maryland zone 7 keeping green the memory of Liddell & Scott