Morfología y anatomía floral de Schinopsis balansae (Anacardiaceae)
A morphological and anatomical analysis of Schinopsis balansae Engl. was performed, using optical and scanning electron microscopy. The main objective was to obtain data from the flowers of this species, usually described as polygamous-dioecious. The results shows that the flowers described as...
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| Publicado en: | Revista de la Facultad de Ciencias Agrarias |
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| Autor principal: | |
| Materias: | |
| Acceso en línea: | https://bdigital.uncu.edu.ar/fichas.php?idobjeto=6084 |
| Sumario: | A morphological and anatomical analysis
of Schinopsis balansae Engl. was performed,
using optical and scanning electron microscopy.
The main objective was to obtain data from
the flowers of this species, usually described
as polygamous-dioecious. The results shows
that the flowers described as functionally
perfect are structurally pistillate; although have
five staminoids, they are smaller and lack
sporogenous tissue. In the staminate flowers,
the structure described as vestigial pistil is the
excrescence of the apex of the receptacle,
covered by nectariferous tissue. Thus, it is right
to describe S. balansae as dioecious species.
The study of the vascularization of male flowers
shows that the reduction process is complete,
since not even the vascular traces for the pistil
persists. The gynoecium of pistillate flowers is
pseudomonomerous with one functional carpel,
one ovule and one dorsal style and stigmata,
and two vestigial carpels, represented only by
individual lateral style/stigma. Both types of
flowers present an intrastaminal nectary disc,
with nectarostomatas for nectar release. The
analysis of the anatomic structure of S. balansae
provides data that are consistent with those
found in other studied genus of Anacardioideae
group in the Anacardiaceae family. |
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