Annotated Checklist of the Vascular Plants of the Serranía de Pilón Lajas and the Adjacent Piedmont, Ballivian Province, Beni, Bolivia Intro | Pteridophytes | Monocotyledons | Dicotyledons Table 1. Floristic diversity in the Serranía Pilón Lajas based on all known collections including all life forms; a) summary data for twenty most diverse families; b) summary data for all taxa; data derived from Smith & Killeen (1995). A. Twenty Most Diverse Families Genus Species Rubiaceae 27 79 Leguminosaeae 27 77 Moraceae 12 34 Melastomataceae 8 30 Euphorbiaceae 15 27 Lauraceae 7 23 Solanaceae 6 22 Piperaceae 3 22 Polypodiaceae 9 21 Palmae 13 20 Acanthaceae 8 17 Sapindaceae 7 16 Myrtaceae 4 16 Annonaceae 11 15 Meliaceae 4 15 Adiantaceae 4 14 Araceae 5 13 Sapotaceae 4 12 Gesneriaceae 3 12 Aspleniaceae 7 11 B. Summary Data for All Taxa Families Genera Species Pteridophytes 11 31 62 Monocotyledons 13 46 74 Dicotyledons 78 299 632 Total 102 376 768 Intro | Pteridophytes | Monocotyledons | Dicotyledons