Catálogo sistemático dos pólens das plantas arbóreas do brasil meridional: V - Leguminosae: Papilionatae

Memórias do Instituto Oswaldo Cruz, Feb 2019

In this paper of the catalogue of south brazilian arboreal pollen grains, the autor deals with the Papilionatae. The Mimosoideae and Caesalpinioideae are yet in preparation, so that a discussion of the three subfamilies (or families) is not possible. In relation with the systematical subdivision of the Papilionatae, we found a large correspondence with the morphology of the present pollen grains. The group of Phaseoleae contains the genera Mucuna, Erythrina and Dioclea; the grains of the studied species are very different one from another; the first of the genera possesses very volumous grains, with three colpori and a reticulated superficies; the second has three-porated pollen grains with a large reticulated superficies, and the third, Dioclea, is yet different; it possesses oblated grains, each three-colporated, with a thick sexine and a psilated superficies. So, we can say, that Phaseoleae is a erypalynous group. Dalbergieae, with the genera: Andira, Dalbergia, Lonchocarpus, Machaerium, Platymiscium and Pterocarpus (and Dahlstedtia, the only exception), has very uniform pollen grains, and may be considered stenopalynous. It is not possible to include the genus Dahlstedtia into this group. A little exception is represented by Pterocarpus violaceus, because of the reticulated sexine of its grains, while the others, also three-colporated, possess a tectate-reticulated sexine. The genera Myrocarpus and Ormosia, from Sophoreae, are very more similar to the Dalbergieae as to any other genus of the Phaseoleae.

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Catálogo sistemático dos pólens das plantas arbóreas do brasil meridional: V - Leguminosae: Papilionatae

Catálogo sistemático dos pólens das plantas arbóreas do brasil meridional: V - Leguminosae: Papilionatae Ortrud M. Barth1  Instituto Oswaldo Cruz, Rio de Janeiro, Brasil ABSTRACT In this paper of the catalogue of south brazilian arboreal pollen grains, the autor deals with the Papilionatae. The Mimosoideae and Caesalpinioideae are yet in preparation, so that a discussion of the three subfamilies (or families) is not possible. In relation with the systematical subdivision of the Papilionatae, we found a large correspondence with the morphology of the present pollen grains. The group of Phaseoleae contains the genera Mucuna, Erythrina and Dioclea; the grains of the studied species are very different one from another; the first of the genera possesses very volumous grains, with three colpori and a reticulated superficies; the second has three-porated pollen grains with a large reticulated superficies, and the third, Dioclea, is yet different; it possesses oblated grains, each three-colporated, with a thick sexine and a psilated superficies. So, we can say, that Phaseoleae is a erypalynous group. Dalbergieae, with the genera: Andira, Dalbergia, Lonchocarpus, Machaerium, Platymiscium and Pterocarpus (and Dahlstedtia, the only exception), has very uniform pollen grains, and may be considered stenopalynous. It is not possible to include the genus Dahlstedtia into this group. A little exception is represented by Pterocarpus violaceus, because of the reticulated sexine of its grains, while the others, also three-colporated, possess a tectate-reticulated sexine. The genera Myrocarpus and Ormosia, from Sophoreae, are very more similar to the Dalbergieae as to any other genus of the Phaseoleae. ABSTRACT In dieser Arbeit des katalogs der suedbrasilianischen Baumpollen, befasst sich der Autor mit den Papilionatae. Da sich die Mimosoideae und die Caesalpinioideae noch in Bearbeitung befinden, konnte eine Diskussion der drei unterfamilien (oder Familien) noch nicht stattfinden. In Bezug auf die systematische Unterteilung der Papilionaceen, ergab sich eine weitgehende Uebereinstimmung mit der Morphologie der vorliegenden Pollenkoerner. Die Gruppe Phaseoleae enthaelt die Gattungen Mucuna, Erythrina un dioclea; die Pollen der bearbeiteten Arten sind sehr verschieden: die erstere der Gattungen besitzt sehr grosse Koerner mit je drei Colpori und netzartiger Oberflaechenstruktur; die zweite hat dreiporige Pollen, mit weitmaschiger Netzoberflaeche, und die dritte, Dioclea, ist wieder anders: sie besitzt sehr flache Pollen mit je drei Colpori, sehr dicker einzige grosse Ausnahme), hat sehr einfoermige Pollen, kann also als eine eurypalynische Gruppe angesehen werden. Dalbergieae, mit den Gattungen Andira, Dalbergia, Lonchocarpus, Machaerium, Platymiscium und Pterocarpus (und mit Dahlstedtia, als einzige grosse Ausnahme), hat sehr einforemige Pollen, kann also als stenopalynisch angesehen werden. Nur die Gattung Dahlstedtia fuegt sich nicht in diesen Rahmen ein. Eine schwache Ausnahme macht noch Pterocarpus violaceus, da diese Art Koerner mit echter Netzoberflaeche besitzt, waehrend alle andern, zwar auch mit drei Colpori, eine unechte Netzoberflaech haben; sie hat also eine "reticulate" Sexine, waehrend die andern eine "tectatereticulate" vorweisen. Die Gattungen Myrocarpus und Ormosia, der Gruppe Sophoreae, sind den Dalbergieae viel aehnlicher als irgend einer Gattung der Phaseoleae. Texto completo disponível apenas em PDF. Full text available only in PDF format.


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Ortrud M. Barth. Catálogo sistemático dos pólens das plantas arbóreas do brasil meridional: V - Leguminosae: Papilionatae, Memórias do Instituto Oswaldo Cruz, 95-123, DOI: 10.1590/S0074-02761964000100010