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Phyton (Buenos Aires)

versión On-line ISSN 1851-5657


BERNACKI, FG; ALBORNOZ, PL; VALOY, M  y  ORDANO, M. Anatomy of flower and fruit of Vassobia breviflora (Solanaceae) in the south of the southern Yungas (Argentina). Phyton (B. Aires) [online]. 2015, vol.84, n.2, pp.478-487. ISSN 1851-5657.

Solanaceae is a family with nearly 2400 species of cosmopolitan distribution. Vassobia breviflora is the only species of the genus present in Argentina. The goal of this work was to review and characterize the anatomy of the flower and fruit of V. breviflora from samples collected in populations of Yungas in the argentine Northwest. Conventional anatomical techniques were applied. The results showed that most flower, fruit and seed structures did not differ from those previously reported regarding the structural organization described for other species of the Solanaceae family. However, for the first time, we described the androecium, fruit, seed, foral and fruit pedicels, five types of tricomes and fve types of stomata in the peri- anth. We found some differences in the shape of the transmission tissue and in the type of ovule with respect to that previously reported. Also, we located the parenchyma and the epidermic secretory cells of the nectary. In the context of the family Solanaceae, we discussed the function and diagnostic value of the described structures.

Palabras clave : Anatomy; Solanaceae; Flower; Fruit; Seed.

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