Microcalicium subpedicellatum (Schaerer) Tibell
Microcalicium subpedicellatum, also known as Schaerer's velvet lichen, is a species of lichen in the family Caliciaceae. It was first described by Swiss lichenologist Bruno Schaerer in 2001.
Origin
Microcalicium subpedicellatum is commonly found in Europe, especially in alpine regions. It can also be found in other parts of the world, including North America and Asia.
Appearance
Microcalicium subpedicellatum is a small cushion-like lichen with a diameter of 0.5-2 cm. It has a velvety texture and is bright orange to red-orange in color. Its apothecia, or fruiting bodies, are red or brown and are found on the upper surface of the lichen. The lichen's thallus, or body, is smooth and firm, and has a white underside with tiny black dots.
Uses
Microcalicium subpedicellatum is not known to have any practical uses. However, it is an important species for studying the biodiversity of lichens in alpine regions.
Light Requirements
Microcalicium subpedicellatum is a shade-tolerant plant species that thrives well under low to moderate light conditions. It is ideal to grow the plant under scattered light conditions, avoiding direct exposure to bright sunlight. This species can grow well outdoors under the canopy of taller plants or indoors under artificial light sources with low intensity.
Temperature Requirements
The ideal temperature range for the growth of Microcalicium subpedicellatum is between 15°C to 25°C. The plant can tolerate temperatures as low as 10°C or as high as 30°C but prolonged exposure to extreme temperatures can hinder growth. During the winter season, the plant needs to be protected from frost and freezing temperatures.
Soil Requirements
Microcalicium subpedicellatum prefers well-drained, slightly acidic to a neutral soil with a pH range of 6 to 7.5. The plant requires fertile soil with organic matter and nutrients to support growth. It is essential to ensure the soil is moist but not waterlogged, as this can lead to root rot. Regular watering is essential but it is necessary to let the soil dry slightly between watering sessions.
Cultivation
Microcalicium subpedicellatum is an epiphytic or saxicolous lichen that can be grown both indoors and outdoors. It is recommended to cultivate this plant outdoors, in an area with partial shade to full sunlight, as this plant thrives in natural light. Be sure to plant it in well-draining soil or attach it to a substrate that can provide physical support.
Watering Needs
Proper watering is essential for the growth and development of Microcalicium subpedicellatum. This plant thrives in moderate moisture conditions, so be sure to water regularly, especially during dry periods. However, be careful not to overwater, as too much moisture can lead to root rot and other problems. It is best to water early in the morning or late in the afternoon to prevent water loss due to evaporation or sun exposure.
Fertilization
Microcalicium subpedicellatum does not require frequent fertilization. However, you may apply a small amount of slow-release fertilizer once or twice annually to improve growth and development. Be sure to use a low-nitrogen, low-phosphorus, and high-potassium fertilizer to avoid excessive growth and the development of a lush, leafy canopy.
Pruning
Pruning is not necessary for Microcalicium subpedicellatum, as it does not have a defined shape or size. However, you may remove dead or damaged branches or foliage to improve the overall appearance of the plant. Be sure to use clean, sharp pruning shears to prevent the spread of diseases or infections.
Propagation of Microcalicium subpedicellatum (Schaerer) Tibell
Microcalicium subpedicellatum (Schaerer) Tibell is a lichen-forming fungus that typically colonizes tree bark. The propagation of this plant can be achieved through asexual or sexual methods.
Asexual Propagation
The asexual propagation of Microcalicium subpedicellatum can be accomplished through vegetative means. This involves the fragmentation of the lichen and transplanting the fragments onto suitable substrates. This method is dependent on the lichen's thallus breaking apart into small pieces, which can establish new colonies. However, it is essential to ensure that the substrate onto which the fragments are transplanted is already inhabited by suitable microorganisms that can provide nutrients for the lichen. This method is especially useful under conditions where there is a limited availability of propagules.
Sexual Propagation
Microcalicium subpedicellatum can also reproduce sexually to generate genetically diverse offspring. This requires the fusion of specialized sexual structures, resulting in the formation of spores. The spores are then dispersed by the wind and settle onto suitable substrates to establish new colonies. Sexual reproduction ensures genetic diversity in Microcalicium subpedicellatum populations, which can promote adaptation to varying environmental conditions.
In conclusion, knowing the propagation methods of Microcalicium subpedicellatum (Schaerer) Tibell is vital in its conservation and management. Understanding these methods enables the development of suitable techniques in the successful establishment and propagation of this lichen in different environments.
Disease Management
One of the most common diseases that affect Microcalicium subpedicellatum is root rot, which is caused by overwatering or poor drainage. To prevent this, ensure that the plant is grown in well-draining soil, and avoid overwatering. If root rot sets in, remove the affected parts and allow the soil to dry out before replanting.
Leaf spot disease is another problem that plagues Microcalicium subpedicellatum. This fungal disease manifests as brown spots on the leaves. To manage this disease, remove the affected leaves and spray the plant with a fungicide. To avoid a reoccurrence of the disease, ensure that you water the plant from the bottom, as opposed to pouring water directly on the leaves.
Pest Management
Microcalicium subpedicellatum is also susceptible to pest infestations, including spider mites, mealybugs, and scale insects. Spider mites are tiny pests that suck sap from the leaves, leaving behind yellow spots and webbing. To manage a spider mite infestation, wipe the leaves with a damp cloth or spray the plant with a miticide.
Mealybugs and scale insects, on the other hand, are small, oval-shaped pests that feed on plant sap and excrete honeydew, a sugary substance that attracts ants. To control these pests, remove them manually or use an insecticidal soap or oil. Ensure that you treat both the top and bottom of the leaves to get rid of any hidden pests.
