'''Table 1. Families treated in PROTA 7(2) and the division of species.''' {| class="wikitable centre"|-! scope="col"|Family! scope="col"|Genera! scope="col"|Major<br>species! scope="col"|Minor<br>species! scope="col"|Mentioned<br>species! scope="col"|Total<br>species|-|''Alangiaceae''|align="right"| 1||align="right"| 0||align="right"| 2||align="right"| 0||align="right"| 2|-|''Anacardiaceae''|align="right"| 6||align="right"| 4||align="right"| 4||align="right"| 15||align="right"| 23|-|''Anisophylleaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 2|-|''Annonaceae''|align="right"| 12||align="right"| 6||align="right"| 6||align="right"| 20||align="right"| 32|-|''Aquifoliaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Araliaceae''|align="right"| 3||align="right"| 0||align="right"| 3||align="right"| 5||align="right"| 8|-|''Asteraceae''|align="right"| 2||align="right"| 2||align="right"|1 ||align="right"| 5||align="right"| 8|-|''Asteropeiaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 2||align="right"| 3|-|''Betulaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 1||align="right"| 2|-|''Bignoniaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 4||align="right"| 6|-|''Boraginaceae''|align="right"| 2||align="right"| 1||align="right"| 3||align="right"| 5||align="right"| 9|-|''Caesalpiniaceae''|align="right"| 57||align="right"| 56||align="right"| 40||align="right"| 96||align="right"| 192|-|''Cecropiaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Celastraceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 3||align="right"| 4|-|''Celtidaceae''|align="right"| 2||align="right"| 4||align="right"| 2||align="right"| 3||align="right"| 9|-|''Chrysobalanaceae''|align="right"| 3||align="right"| 2||align="right"| 2||align="right"| 4||align="right"| 8|-|''Combretaceae''|align="right"| 3||align="right"| 6||align="right"| 2||align="right"| 3||align="right"| 11|-|''Convolvulaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Cornaceae''|align="right"| 2||align="right"| 0||align="right"| 2||align="right"| 0||align="right"| 2|-|''Ctenolophonaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Cunoniaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 3||align="right"| 4|-|''Dichapetalaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 0||align="right"| 1|-|''Didiereaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 2||align="right"| 3|-|''Dipterocarpaceae''|align="right"| 2||align="right"| 0||align="right"| 2||align="right"| 5||align="right"| 7|-|''Ebenaceae''|align="right"| 2||align="right"| 5||align="right"| 2||align="right"| 20||align="right"| 27|-|''Elaeocarpaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 4||align="right"| 6|-|''Erythroxylaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 1||align="right"| 3|-|''Euphorbiaceae''|align="right"| 26||align="right"| 12||align="right"| 21||align="right"| 42||align="right"| 75|-|''Flacourtiaceae''|align="right"| 11||align="right"| 3||align="right"| 9||align="right"| 24||align="right"| 36|-|''Hamamelidaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 0||align="right"| 1|-|''Hernandiaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 2||align="right"| 4|-|''Hoplestigmataceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 0||align="right"| 1|-|''Humiriaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Icacinaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Irvingiaceae''|align="right"| 2||align="right"| 2||align="right"| 0||align="right"| 1||align="right"| 3|-|''Ixonanthaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 1||align="right"| 2|-|''Lecythidaceae''|align="right"| 2||align="right"| 2||align="right"| 1||align="right"| 3||align="right"| 6|-|''Loganiaceae''|align="right"| 3||align="right"| 2||align="right"| 2||align="right"| 4||align="right"| 8|-|''Lythraceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 0||align="right"| 1|-|''Medusandraceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 0||align="right"| 1|-|''Monimiaceae''|align="right"| 4||align="right"| 1||align="right"| 3||align="right"| 1||align="right"| 5|-|''Myristicaceae''|align="right"| 5||align="right"| 5||align="right"| 0||align="right"| 3||align="right"| 8|-|''Myrsinaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Ochnaceae''|align="right"| 4||align="right"| 2||align="right"| 2||align="right"| 4||align="right"| 8|-|''Olacaceae''|align="right"| 6||align="right"| 3||align="right"| 4||align="right"| 4||align="right"| 11|-|''Oleaceae''|align="right"| 2||align="right"| 2||align="right"| 1||align="right"| 3||align="right"| 6|-|''Polygalaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 2||align="right"| 3|-|''Proteaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 2||align="right"| 4|-|''Rhamnaceae''|align="right"| 2||align="right"| 0||align="right"| 3||align="right"| 3||align="right"| 6|-|''Rhizophoraceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Rubiaceae''|align="right"| 13||align="right"| 6||align="right"| 11||align="right"| 14||align="right"| 31|-|''Salicaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 2||align="right"| 3|-|''Sapindaceae''|align="right"| 17||align="right"| 6||align="right"| 13||align="right"| 43||align="right"| 62|-|''Sarcolaenaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 6||align="right"| 7|-|''Scytopetalaceae''|align="right"| 2||align="right"| 1||align="right"| 1||align="right"| 4||align="right"| 6|-|''Sonneratiaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 0||align="right"| 1|-|''Tamaricaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 3||align="right"| 4|-|''Ulmaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|''Violaceae''|align="right"| 1||align="right"| 0||align="right"| 1||align="right"| 7||align="right"| 8|-|''Vochysiaceae''|align="right"| 1||align="right"| 1||align="right"| 0||align="right"| 0||align="right"| 1|-|'''Total'''|align="right"| 235||align="right"| 150||align="right"| 164||align="right"| 379|| align="right"| 693|}
Comprehensive descriptions are given of 150 important timber species. These major timbers comprise mostly wild species, but also several cultivated or partly domesticated species. The accounts are presented in a detailed format and illustrated with a line drawing and a distribution map. In addition, accounts of 164 timbers of minor importance are given. Because information on these species is often scanty, these accounts are in a simplified format and usually do not include a drawing. For another 379 species the information was too scarce to justify an individual treatment and they have only been mentioned in the accounts of related species.