such as "Introduction", "Conclusion"..etc
Abstract: The morphological and anatomical features of the inflorescence bracts were studied in H. rivularis, H. spathocircinata and H. velloziana (subg. Heliconia) and in H. angusta, H. hirsuta and H. subulata subsp. gracilis (subg. Stenochlamys). All species are found in São Paulo State. In the subg. Heliconia the bracts are cymbiform and in Stenochlamys
they are lanceolate-conduplicated. All species have bracts with
uniseriate epidermis, with thin-walled cells, tetracytical stomata in H. hirsuta and H. subulata,
and polycytical in the others; the vascular bundles and air canals are
distributed in arc-shaped and the fiber bundles are situated close to
the abaxial surface. The bract shape, associated with the distribution
of the fiber bundles and with the size of the air canals were different
in both studied subgenera. An identification key was made based on
morphological and anatomical features.
Full text available in Portuguese: SIMAO, Daniela Guimarães and SCATENA, Vera Lucia. Morphology and anatomy of the bracts in Heliconia (Heliconiaceae), occurring in the São Paulo State, Brazil. Acta Bot. Bras.,
vol.18, no.2, p.261-270.
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