Name: Porroglossum sergii P.Ortiz
Etymology: sergii = named in honor of Padre Sergio Restrepo Uribe, a Colombian priest, botanist, and orchid expert.
First description: 1975 by Pedro Ortiz Valdivieso in Orquideología (10: 251).
Origin / Distribution: Colombia (endemic to the Antioquia Department).
Location / Habitat: Grows epiphytically in cool, perpetually moist cloud forests of the Andes at altitudes of approx. 2,000 to 2,400 meters. It thrives on shaded, moss-covered branches with high year-round humidity and constant air movement.
Description & Notes: Porroglossum sergii is a fascinating miniature orchid related to the Pleurothallidinae. It forms dense cushions of spatula-shaped, slightly fleshy, dark green leaves. The usually solitary flowers appear on slender, upright inflorescences and are notable for their cup-like fused sepals with tail-like extended tips. A special feature is the touch-sensitive snapping mechanism of the flower lip: upon insect contact, the lip snaps inward abruptly to press the pollinator against the gynostemium.
In cultivation, this highland rarity requires cool to temperate-cool conditions (ideally 12–20 °C) and does not tolerate prolonged summer heat. The location should be shaded to semi-shaded with no direct sunlight. As it originates from cloud forests, it requires high humidity (over 75%) and a constantly slightly moist substrate (e.g., fine sphagnum moss or a very airy bark mix), which must, however, never be waterlogged.
In-vitro culture: You will receive one flask with 4 young plants. The plants are generally already large enough to be deflasked. After opening, carefully remove the nutrient medium from the fine roots using lukewarm water and place the young plants on moist sphagnum or in a very fine, airy, and slightly moisture-retaining substrate. During the first few weeks, we recommend very high humidity, cool to cool-intermediate temperatures, protected light, and gentle, continuous air movement. Keep the young plants constantly slightly moist, never let them dry out completely, and protect them from heat.