The present study aims to raise new data about collection of resin …

• Abstract
• Introduction
• Materials and Methods
• Results
• Discussion
• References
• Figures
• Tables

Figure 2 View of histological methacrylate preparation of resin mass collected from a corbicula of Africanized Apis mellifera on shoot apex of Baccharis dracunculifolia, showing leaf fragments in cross section. Du, resiniferous duct; GT, glandular trichome; LFr, leaf fragments.

Figure 3 Leaf fragment in cross section in histological methacrylate preparation of resin mass collected from a corbicula of Africanized Apis mellifera on shoot apex of Baccharis dracunculifolia. Du, resiniferous duct; Ep, epiderm; GT, glandular trichome; P, phloem; X, xylem.

Figure 4 View of histological methacrylate preparation of a green propolis sample, showing leaf fragments of Baccharis dracunculifolia. Du, resiniferous duct; LFr, leaf fragments.

Figure 5 Cross section of leaf fragment of Baccharis dracunculifolia in methacrylate histological preparation of a green propolis sample viewed with polarized light, showing glandular trichomes with brilliant starch inclusions. St, starch inclusion.

Figure 6 Cross section of a young leaf from shoot apex of Baccharis dracunculifolia in a histological methacrylate preparation, showing glandular trichomes with brilliant starch inclusions. BGT, biseriate glandular trichome; St, starch inclusion; UGT, uniseriate glandular trichome.

Figure 7 Structures of some compounds identified in a sample of green propolis. (A) 2-hydroxy-7,12-dimethylbenzanthracene. (B) 1-Hydroxy-2-(1-methoxyethyl)-3-methoxyanthraquinone; (C) Dehydrocostus lactone. (D) Isomaturnin. (E) 1,4aß-dimethyl-7-isopropyl-2,3,4,4a,9,10-hexahydrophenanthrene. (F) 1,7,7-Trimethyl-3-phenyl-2-oxabixyclo-(4.4.0)-deca-3,5-diene. (G) 4,8-Dimethyl-5-hydrindacene.