Hermetospheres

Experiences with plant life in closed glass containers

Category: Successes

  • Root or shoot?

    Root or shoot?

    A primeval plant that grows easily in hermetospheres provides insights into the early history of plant development. Initially I had Selaginella uncinata, a spikemoss, growing in a 1 litre jar for a few weeks as a trial. That is how I found that the plant thrives under hermetosphere conditions and spreads quickly (see picture below).…

    Read more: Root or shoot?
  • Tiny flies find tiny flowers

    Tiny flies find tiny flowers

    At first glance, the flowers of aroids (family Araceae) appear much less spectacular than those of other plants. Aroids are therefore loved by plant enthusiasts far more for their foliage than for their flowers. On closer inspection, however, the flowers offer amazing insights. While tropical aroids have been popular as indoor, terrarium or aquarium plants…

    Read more: Tiny flies find tiny flowers
  • Plant, ant-plant and ant

    Plant, ant-plant and ant

    In their natural habitat, the melastoma family plant Pachycentria glauca often grow as epiphythes on ant-plants like Hydnophytum and Dischidia (which themselves usually grow epiphytically). Plants that live in a mutualistic association with a colony of ants are called myrmecophytes. Two morphological features of P. glauca are important for this plant-ant interaction: miniature pearl bodies…

    Read more: Plant, ant-plant and ant
  • Succeeding generations (1): Biophytum sensitivum

    Succeeding generations (1): Biophytum sensitivum

    The title of his article can be understood in two ways. If you have read my [About], you know that my goal in dealing with hermetospheres is to design miniature systems in which each plant reproduces over several generations. With this post, I begin a series of successful examples of second or third generation plants…

    Read more: Succeeding generations (1): Biophytum sensitivum
  • A tiny cosmopolitan

    A tiny cosmopolitan

    When I started with hermetospheres, mosses were not my first priority. They sometimes came as a stowaway with other plants, and I usually let them grow. They did not trouble and formed a welcome ground cover. Moss first caught my attention when spore capsules developed on long, thin stems in my very first hermetosphere jar.…

    Read more: A tiny cosmopolitan
  • A mysterious orchid with boat-shaped flowers

    A mysterious orchid with boat-shaped flowers

    Very little is known about the orchid Restepia cymbula. According to C.A. Luer (1996), who described the species in the Icones Pleurothallidarium, its presumptive discoverer was Mario Portilla, later co-founder of the famous nursery Ecuagenera Cia. Ltda. Luer writes: “This little species without collection data was obtained in 1992 by Colomborquideas Ltd. above Medellin, Colombia,…

    Read more: A mysterious orchid with boat-shaped flowers
  • A vulnerable orchid

    A vulnerable orchid

    Aerangis 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…

    Read more: A vulnerable orchid
  • In honour of João Barbosa Rodrigues

    In honour of João Barbosa Rodrigues

    It 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…

    Read more: In honour of João Barbosa Rodrigues
  • What makes a flower attractive?

    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…

    Read more: What makes a flower attractive?
  • A most exceptional Begonia

    A most exceptional Begonia

    Begonia 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…

    Read more: A most exceptional Begonia