Stenospermation subellipticum Sodiro

• Genus: Stenospermation
• Botanical Background: The species was described by the botanist Sodiro, who contributed extensively to the study of South American Aroids. His work in the late 19th century has been influential in the classification of many Aroid species.

• Geographical Range: Native to Ecuador, specifically in the cloud forests of the Andean mountain range, at altitudes between 1,000 and 2,000 meters
• Environment: Thrives in moist, shaded environments with high humidity and well-drained, organic soils; naturally grows in the subtropical and tropical regions, where temperatures remain relatively stable year-round

Leaves

• Subelliptical, large, and leathery with a glossy surface
• Dark green and may feature slight variegation or lighter venation
• Edges are smooth, with an overall elongated shape

Inflorescence (Spadix & Spathe)

• Consists of a small, pale spadix surrounded by a greenish spathe
• Spathe is usually a subtle shade of green, with a faint scent that is not particularly strong but attractive to certain pollinators
• Pollination is thought to be facilitated by insects attracted to the spadix

Growth Habit

• Typically terrestrial but can be found in the wild in more humid, low-light understory conditions
• Grows from a rhizome, forming a dense cluster of stems and leaves

Light Requirements

• Bright, indirect light or filtered sunlight
• Direct sun can scorch the leaves

Watering & Humidity

• Requires consistently moist soil
• High humidity (60%-80%) is essential for optimal growth
• Important not to let the plant sit in standing water

Soil & Potting Mix

• A well-draining, rich, organic potting mix is recommended, with a pH range of 5.5 to 6.5
• A mix that includes perlite or orchid bark is ideal to ensure good aeration

Temperature & Fertilizer

• Ideal temperature range is between 18°C and 24°C
• Can be done monthly during the growing season with a balanced liquid fertilizer

Division

• Most common method of propagation is rhizome division

Stem Cuttings (if applicable)

• At least one growing node are cut and replanted; leaf cuttings may also be used, but rooting is slower

Seeds

• Not commonly grown from seed in cultivation. However, seeds can germinate under controlled conditions with warmth and humidity

Typical Issues

• Spider mites and mealybugs
• Root rot may also occur in overly moist conditions

Treatment Recommendations

• Insecticidal soap for pests and neem oil for organic treatment
• Ensure good air circulation and avoid waterlogging to prevent fungal infections

• Plays a role in its native ecosystem by providing shelter and sustenance for various insects and small fauna
• Also noted for its aesthetic appeal in tropical plant collections

• Prized for its attractive foliage and relatively rare status in the Aroid family
• Ornamental value makes it a coveted species among collectors

Wild Population Status

• Not formally listed as endangered, the species is of conservation concern due to habitat loss and the limited geographical range in Ecuador's Andean cloud forests

Market Availability

• Relatively rare in cultivation
• Primarily available through specialized Aroid nurseries or high-end plant collectors