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On the presence of laterocytic stomata in the Myrtaceae Sobre la presencia de estomas laterocíticos en Myrtaceae

by Martínez Quesada, E.
Publisher: 1998ISSN: 0304-3711.Subject(s): MYRTACEAE | TAXONOMIA | ESTOMA | VARIEDADES NATURALIZADAS | ANATOMIA DE LA PLANTA | FOLLAJE | HOJAS | PLANTAS LEÑOSAS | CUBA | MYRTACEAE | TAXONOMY | STOMATA | INTRODUCED VARIETIES | PLANT ANATOMY | FOLIAGE | LEAVES | WOODY PLANTS | CUBA | MYRTACEAE | TAXONOMIE | STOMATE | VARIETE INTRODUITE | ANATOMIE VEGETALE | FEUILLAGE | FEUILLE | PLANTE LIGNEUSE | CUBA In: Brenesia (Costa Rica) (no.49-50) p. 1-9Summary: A study was made of the structure and distribution of laterocytic stomatal complexes in 25 Cuban species of Myrtaceae, 3 belonging to the Leptospermoideae (introduced species) and 22 to the Myrtoideae (endemics). The structure varied not only from taxon to taxon but even within the same taxon. The presence of this stomatal type was restricted to the abaxial surface of the leaves since most of species studied were hypostomatic. Laterocytic stomata appeared to be mainly associated with those of the paracytic type, although other types of stomatal complexes have been observed. Laterocytic stomata were found in all genera of the Myrtoideae studied, but not in all genera of the Leptospermoideae. They could, therefore, have a taxonomic significance at thesubfamily level.
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A study was made of the structure and distribution of laterocytic stomatal complexes in 25 Cuban species of Myrtaceae, 3 belonging to the Leptospermoideae (introduced species) and 22 to the Myrtoideae (endemics). The structure varied not only from taxon to taxon but even within the same taxon. The presence of this stomatal type was restricted to the abaxial surface of the leaves since most of species studied were hypostomatic. Laterocytic stomata appeared to be mainly associated with those of the paracytic type, although other types of stomatal complexes have been observed. Laterocytic stomata were found in all genera of the Myrtoideae studied, but not in all genera of the Leptospermoideae. They could, therefore, have a taxonomic significance at thesubfamily level.

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