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A vulnerable orchid
Read more: A vulnerable orchidAerangis hyaloides is popular with orchid collectors for its lush, brilliant white flowers. For me, this was also one of the reasons to choose it for my Madagascar container. Other reasons were its small size, its supposedly undemanding cultivation and its suitable temperature, humidity and light preferences as an understory species of lowland forests. My…
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In honour of João Barbosa Rodrigues
Read more: In honour of João Barbosa RodriguesIt is the first orchid I ever planted in a hermetosphere, and the fragile beauty of its flowers strikes me again every time. Initially it was planted on one side of the substrate with a small portion of its creeping rhizome. It has since worked its way across the entire diameter of the glass to…
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What makes a flower attractive?
Read more: What makes a flower attractive?Tillandsia ionantha has been popular as an ornamental plant since it arrived in the greenhouses of Belgian horticulturist Louis Van Houtte (1810-1876). This is where Jules Émile Planchon (1823-1888) found the specimen he used for his botanical description of the new species (Planchon 1855). As currently circumscribed, T ionantha is widely distributed in Mexico and…
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A most exceptional Begonia
Read more: A most exceptional BegoniaBegonia is not only among the most diverse genera in nature (about 1’550 described species), but also among the most intensively cultivated ornamental plants in the world (over 10’000 cultivars). Begonias are known from Africa (160 species), the Americas and Asia (more than 600 species each), but not from Australia. Attempts have been made to…
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Around the world on behalf of the tsar
Read more: Around the world on behalf of the tsarOn 7 August 1803 the sailing ship Nadeshda under captain Adam Johann von Krusenstern left St. Petersburg for the first Russia-led circumnavigation of the globe on behalf of Tsar Alexander I. During a first stop in Copenhagen, German naturalist Georg Heinrich von Langsdorff (1774-1852), later diplomat in the service of the tsar, came aboard. After crossing…
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Darwin and the mystery of the coiling direction
Read more: Darwin and the mystery of the coiling directionWhen I acquired this plant as one of my first purchases to grow in a hermetosphere, it was labelled Marcgravia umbellata, but it might as well be Macgravia oligandra. Both plants originate from the caribbean islands and belong to the shingle-leaf climbers – root-climbing plants whose leaves are adpressed and often overlap (Zona 2020). As…
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Plant on the move
Read more: Plant on the moveThe “little tree plant” (Biophytum sensitivum) is very popular among terrarium hobbyists. Its natural habitat are wet lands of tropical India and South-East Asia, where it grows in the shades of trees and shrubs, in grass lands at low and medium altitudes (Sakthivel and Guruvayoorappan 2012). It looks like a miniature palm tree, is perennial,…
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Pyrrosia nummulariifolia
Read more: Pyrrosia nummulariifoliaYou might wonder why this post is categorized as both success and failure. Let me begin with the success. When I started my jar designated to Myanmar in mid-August 2021, I placed a short rhizome cutting of P. nummulariifolia along the border of the substrate. Now, almost a year later, it is well established and…
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Neoregelia
Read more: NeoregeliaBromeliads, the Bromeliaceae family, are among the most fascinating plants of the neotropical fauna. Most of them grow too large for a 5l hermetosphere. A few however do not only fit in size but also seem to find favorable conditions for living in hermetospheres. Initially, the Bromeliaceae family was divided into three subfamilies based on…
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Barbosella cogniauxiana
Read more: Barbosella cogniauxianaI currently run two jars representing Brazil Southeast, both etablished in May 2021. They both contain Barbosella cogniauxiana in different combinations. Under my standard conditions, the plant does very well so far. At the end of March 2022 it showed its extraordinary blooms for the first time. The specimen that served for the first scientific description…
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Hermetospheres 