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5_Eiocaulon_sp_mato_grosso_inflorescences

Translation by Tanya

On the video that I demonstrate you can see a simple method of pollination by use of a soft brush. It’s good to make this operation daily passing from one flower to another to guarantee this way the distribution of mature pollen on pistils. In this case it’s necessary to specify that generally many species of the Eriocauloceae Family are “monoecious” in other words they have female and male flowers on the same individual. If the reproductive organs are present on the same flower and they are both fertile it takes the name of a ‘hermaphrodite’ flower, in case both organs are present but one of them is sterile it gets called ‘unisexual’. The presence of the flowers having the reproductive organs of one sex is confirmed (male flowers with an androecia and female flowers having gynoecia) but anyway both types are present on a monoecious individual. The Eriocaulon in question is called 'Mato Grosso' seems to have unisexual flowers (in other words with both sex reproductive organs present while one of them is sterile; female flowers are situated at the center and the male ones are located on the superficial top part of the inflorescence); because at the initial phase of my experiments I pollinated with the use of pollen of one and the same flower (a flower closed in a small plastic bag and brushed in the way to prevent it from mixing with other pollen) with no fecundation result coming. This should certainly demonstrate the ‘unisexual’ character  because self-fertilization is not possible in this way but it  is necessary to bring pollen from different flowers, from one to another with a brush in the way to fertilize them as the maturation of stamina (male organs that produce pollen) as well as of stigmas (female receivers where the pollen gets ‘attached’ to fertilize ovaries) is anachronistic on the same flower therefore it is necessary to have different inflorescences on the plant or on different plants that represent gradual maturation. For example Maize/Corn has got the same feature, in fact the pollen of a tassel (male inflorescence high up) is rarely able to fertilize a silk (female one, that is down) because their maturation is anachronistic, therefore it is necessary to have many individuals in the same field of cultivation to guarantee the pollination and fertilization as a result.

After numerous unsuccessful attempts I finally made it to have the seeds of Eriocaulon sp. 'Mato Grosso', these little seeds take a long time to germinate giving really fragile and thin sprouts. I’ll write about in the following articles.

I would like to remind all users that this experimental work results to be the first and one of a kind article about flowering and fecundation of Eriocaulon sp. 'Mato Grosso' : the photos and video is the result of a continuous and passionate research of the Author that achieved tangible and important results in monitoring the development and reproduction of this specie cultivated in captivity, and there are no descriptions and photos of it in nature made by the scientific community of this sector by now.