WOOD ANATOMY OF THE TRIBE SWARTZIEAE WITH COMMENTS ON RELATED PAPILIONOID AND CAESALPINIOID LEGUMINOSAE

The tribe Swartzieae, like the Sophoreae is a basal member of the Papi lionoid legumes, lying at the boundary between this subfamily and the Caesalpinioideae (Polhill & Raven 1981). Recent surveys have investiga ted the wood anatomy of 42 out of the 48 genera in the Sophoreae (Fuji i & Baas 1992; Fujii et al. 1994; Gasson 1994; Den Outer & Van Veenend aal 1992). Similar work is needed on the Swartzieae (11 genera), and i n the Caesalpinioideae on Caesalpinieae (47 general), Amherstieae (25 genera) and Detarieae (55 genera). The wood anatomy of Swartzieae is d escribed here, the genus Baphiopsis apparently for the first time, and comparison is made especially with Sophoreae. There is no clear delim itation between the two tribes, which is confirmed by cladistic analys is on 12 wood characters of Swartzieae alone, then combined Swartzieae and Sophoreae. Baphiopsis (Swartzieae) and Baphia (Sophoreae) are so similar anatomically that they should perhaps be in the same tribe, an d Bocoa is not uniform anatomically, and may not be a coherent genus. The data presented here will assist in reaching conclusions on the cor rect delimitation of some genera and tribes in the Papilionoid legumes .