Suchergebnisse - Heel, Willem A. van

Morphology of the pistil in Malvaceae-Ureneae

Note on early development of the intergument in some Juglandaceae: together with some general questions on structure of Angiosperms ovules

Distally lobed Integuments in some angiosperm ovules

Anatomic and ontogenetic investigations on the morphology of the flowers and the fruit of Scyphostegia Borneensis Stapf Scyphostegiaceae

The Pistil of Bertolonia marmorata Naud: (melastomataceae)

Flowers and fruits in Flacoutiacee

The synangial nature of pollen Sacs on the 'Congenital Fusion' and 'Conservation of the Vascular Bundle System', w. Sp. reference to Maldives

On the Morphology of the ovules in Salacca (Palmae)

Flowers and fruits in Flacoutiacee

Distally lobed Integuments in Exochorda, Juglands, Leontice and Bongardia

The distally lobed inner Integument of Hernandia peltata Meissn. in DC. (Hernandiaceae)

The Labyrinth Seed of Hernandia peltata Meissn. in dc.

Note on some more tropical Labyrinth-Seeds

Some unusual tropical Labyrinth Seeds

Note on the bearing of the pattern of vascular bundles on the morphology of the stamens of Victoria amazonica (Poepp.) Sowerby

The synangial nature of pollen Sacs on the 'Congenital Fusion' and 'Conservation of the Vascular Bundle System', w. Sp. reference to Maldives

Miscellaeous teratological notes together with some general considerations

Miscellaeous teratological notes together with some general considerations

Miscellaeous teratological notes together with some general considerations

Flowers and fruits in Flacoutiacee