The Useful Trees of Northern Nigeria

First published in 1925, this meticulous field guide catalogs 120 tree species of Northern Nigeria's savannah forests, recording the knowledge that colonial botanists and local informants had accumulated over generations. Hugh Vandervaes Lely arranged his subjects alphabetically, providing detailed morphological descriptions alongside practical information about each species: which ones yielded timber for building, sap for brewing, bark for medicine, or foliage for livestock. The hand-drawn illustrations capture bark texture, leaf arrangement, flowering patterns, and fruit structures with careful specificity. What elevates this beyond a mere botanical index is its implicit argument: that the indigenous peoples of the region possessed sophisticated ecological understanding, systematically developed through centuries of observation and use. The book functions now as both a scientific reference and an irreplaceable archive of a landscape that has been dramatically transformed by development and climate change. For botanists, environmental historians, and anyone interested in the intersection of colonial science and indigenous knowledge, Lely's work offers a rare window into a vanished natural world and the human relationships that sustained it.