Wood functional anatomy of Chiococca alba Hitch. (Rubiaceae) from cerrado

Flavonoids from Chiococca braquiata (Rubiaceae)

The genus Chiococca (Rubiaceae) with 22 species is endemic of the American Continent, and occurs from North America to Brazil. Several Chiococca species have been traditionally used in these regions for the treatment of numerous human ailments including inflammation, antivirus, anti-edema and as aphrodisiac. Other plants belonging to the Rubiaceae family have yielded a number of interesting bio...

Chromosomal studies of species of Rubiaceae (A. L. de Jussieu) from the Brazilian cerrado

The chromosomes of 14 species belonging to two subfamilies of the family Rubiaceae collected in the Brazilian cerrado were studied. In the subfamily Ixoroideae, five species (Alibertia concolor, A. edulis, A. sessilis, Genipa americana and Tocoyena formosa) had a chromosome number of 2n = 22 and one (Amaioua intermedia) showed polyploidy, with 2n = 66. All of the chromosome numbers were multipl...

Wood Anatomy of Tasmannia

Wood Anatomy of Calycanthaceae

Wood Anatomy of Buddlejaceae

Quantitative and qualitative data are presented for 23 species of Buddleja and one species each of Emorya, Nuxia, and Peltanthera. Although crystal distribution is likely a systematic feature of some species of Buddleja, other wood features relate closely to ecology. Features correlated with xeromorphy in Buddleja include strongly marked growth rings (terminating with vascular tracheids), narro...