Sunday, October 3, 2010

Otto Gartner’s book “Anubias”

First I’ll relate some events preceding. During my holidays in Europe in August 2010 I managed to meet Dr. Anton Lamboj, an editor of the Austrian aquarium-terrarium journal “Aqua-Terra-Austria” (АТА). I’ve been taking the journal for about a year already, and it attracts me for its homeliness first. There are no “epoch-making” descriptions of new fish or plants species, no news about the world’s first breeding of another rarity, no overbalance in describing a particular range of animals preferred by the chief editor or the editorial board. The editor, Austrian Association for Vivaristic and Ecology, emphasizes discovering new aspects of commonly known species keeping and breeding and, so to speak, first-hand describing animals biotopes. The main thing is that he successfully cooperates with the Association members for it is they and not famous ichthyologists (except some of them like Prof. Dr. Helen Thaler writing regularly for the German journal “Koralle”) who travel and bring new animals and plants. Among the АТА journal regular authors there is Johann Posch, one of the oldest and most experienced Austrian aquarians, who actually brought Mr.Lamboj and me together.
The topic of our discussion was Otto Gartner’s book “Anubias” being under review. This year Mr. Gartner is past 85, 30 years of which he has devoted to the study of Anubias plants. Being more a 64 pages long booklet the book is a collection of Mr. Gartner’s articles published in different aquaria journals at different time. Each chapter is devoted to a particular Anubias species. Apart from a detailed scientific description supported by Anubias species classification of Wim Crusio, a Dutch scientist (his interview is at our blog), there are Otto Gartner’s recollections of how, being already a pensioner, he was exploring every more or less “considerable” Congolese or Angolan swamp together with Posh and other aquarians hoping to find a desired Anubias bush.
The book contains plenty of photos taken by the author himself. There are natural Anubias growing areas, inflorescence and fruit sections in the photos, and detailed pictures of leaves and blossom clusters structure. A certain chapter is devoted to creating a paludarium, a perfect “environment” for keeping Anubias at home. Mr.Gartner’s recollections of his “battle” with great botanists are of a special interest. In 1989 the Austrian brought a plant from Cameroun which he defined as Anubias gigantea. However, the family Araceae plants experts – Joseph Bogner, Christel Kasselmann and Wim Crusio – thought otherwise. According to them Otto Gartner brought the other species called Anubias hastifolia! First the scientist yielded to the authorities’ persuasion and even wrote the appropriate name on the plant pot, but later after the plant blossoming he sent inflorescence samples preserved in alcohol to the distinguished experts and – can you believe it?!- managed to persuade them his plant was a true Anubias gigantea. What could baffle the scientists? The answer is simple. Mr.Gartner brought only rhizomes (rootstocks) of the plant to Vienna. Lacking sunshine the Anubias leaves were narrow in the tropical forest, but in Vienna, where it’s sunny enough, they became strong and broad, with their central part base and side arrow-shaped leaves grown together.

To my mind the book will be of interest for both professional botanists and amateur aquarians. It can be ordered on the АТА journal website (http://www.ata.co.at). There is the book cover, the author and the double-page spread in the photos.


The author of this note: Alexander Grigorov.
Translated from Russian by Marina Bortnikova.

Sunday, May 16, 2010

Anubias leaves’ vernation

My article “These mysterious leaves…” was published in the German magazine “Aqua Planta” №4/2009. In this article I touched upon some observations of Anubias leaves’ vernation. There are two possible directions of the convolute vernation: with right or left Archimedean spiral. More than that every individual bush has the same direction from leaf to leaf. The inflorescence’s spatha is rolled up similar to the leaflet. And it is important to mention that the offsets which have been received by the division of the rhizome have the same direction of the vernation, as the maternal plant has. But not so long ago it becomes known that there are several exceptions to this rule. So, Vladimir Surkov from Samara found out that on his bush of Anubias barteri “Coffeifolia” the main and side growing points formed the leaves with different vernation. Also Sergey Gerasimov from Kiev marks those hybrid seedlings from the same cross breeding have different vernation


A. barteri var. nana 'Golden' has convolute vernation along left Archimedean spiral (if we look from the end of the leaf):


Different directions of the leaf formation by vegetative relatives of Anubias barteri ‘Coffeifolia’:


Hybrid seeds from one and the same parents have different direction of vernation:


The author of this note: Dmitry Loginov.

The author used info from the next Web page: http://www.tropica.ru/forum/index.php?showtopic=17816

Translated from Russian by Julia Niklyaeva and Alexander Grigorov

Photos: Sergey Gerasimov and Vladimir Surkov.

Sunday, March 7, 2010

Inflorescence of Anubias sp. Frazeri

Not long ago one of the Anubias of the Ukrainian fancier Sergey Gerasimov - Anubias sp. Frazeri began to blossom. You can see his photos of the inflorescence in this post of our “Bulletin”.





It’s interesting to mention, that the access to the pistils of this Anubias was open only for a day. On the second day after the flowering the spatha covered the whole female part of the inflorescence. In most cases the synandria consist of 5 stamens. The thecae are situated on the edge of the synandrium.




Links:

What does Anubias sp. Frazeri hide from us? and http://www.tropica.ru/forum/index.php?showtopic=22863

Translated from Russian by Julia Niklyaeva and Alexander Grigorov

Photos: Sergey Gerasimov.