Leguminosae, Papilionoideae, Diphysa, Isoflavonoids, Isoflavanones A m ajor phytoalexin produced by the fungus-inoculated leaflets o f Diphysa robinioides has been identified as the new isoflavonoid 5 ,7 ,2 ',4 '-te trahydroxy-6-(3 ,3-dim ethylally l)isoflavanone (diphysolone). It is accom panied by sm aller quan tities o f d iphyso lone-4 ' (or 2 ')-0 -m e th y l ether (diphysolidone), and the...

Tipuana tipu (Benth.) Kuntze is a tree from the leguminosae family (Papilionoideae) indigenous in Argentina and extensively used in urbanism, mainly in Southern Brazil. The epicuticular waxes of leaves and branch, and flower surface were studied by high temperature high resolution gas chromatography. Several compounds were characterized, among which the aliphatic alcohols were predominant in br...

A new species of Vigna Savi, subgenus Ceratotropis (Piper) Verdc., Vignayadavii S.P. Gaikwad, R.D. Gore, S.D. Randive & K.U. Garad, sp. nov. is described and illustrated here. It is morphologically close to Vignadalzelliana (Kuntze) Verdc. but differs in its underground obligate cleistogamous flowers on positively geotropic branches, hairy calyx, small corolla, linear style beak and dimorphic s...

Tipuana tipu (Benth.) Kuntze is a tree from the leguminosae family (Papilionoideae) indigenous in Argentina and extensively used in urbanism, mainly in Southern Brazil. The epicuticular waxes of leaves and branch, and flower surface were studied by high temperature high resolution gas chromatography. Several compounds were characterized, among which the aliphatic alcohols were predominant in br...