Cajanus DC.and Atylosia W.&.A.(Leguminosae).A revision of all taxa closely related to the pigeonpea,with notes on other related genera within the subtribe Cajaninae.1986.(Agricultural University Wageningen Papers 85-4).37 maps.32 figs.13 photographs. 225 p.gr8vo.Paper bd.

The taxonomy of the genera Cajanus and Atylosia (Leguminosae, Papilionoideae, tribe Phaseoloideae, subtribe Cajaninae) is revised.Morphological, cytological and chemo- taxonomical data prove the generato be congeneric and consequently Atylosia has been sunk in Cajanus,which contains the important tropical legume crop pigeonpea, and haspriority. Data are gathered from field, herbarium and literaturestudies conducted since 1975 at ICRISAT Center near Hyderabad, India,and throughout India, and at Wageningen, the Netherlands.Cajanus now numbers 32 species including three newly described speciesfrom Australia. The Indian subcontinent contains 17 species. Australiaharbours 13 endemic species, one of which occurs in New Guinea as well.C.scarabaeoides is common to all areas where species do occur, is themost widespread species, and has an endemic variety in Australia. WestAfrica also harbours one endemic species. Keys are written for thespecies from Asia and Africa and those of the Australian region. Thesectional arrangements are reviewed and revised. Similarities withother related genera, Rhynchosia and Dunbaria, are discussed. The genusEndomallus is also congeneric with Cajanus.