This poem is Number 2 in my new edition of Anniversarius: The Book of Autumn, a 40-poem cycle soon to be published.
New note: I have just revised this poem again, adding more details about the Linden tree, which, it turns out, is the national emblem of Czechoslovakia (!): the Muse once again led me to the one and only tree that I could have used. I have also retitled the poem, "The Linden Tree in Prague."
who set himself on fire January 16, 1969
to protest the occupation of his country
rewritten 1996; rewritten 2011