Here is the carefully fact-checked botanical profile for Disterigma agathosmoides, following the precise format we agreed upon:
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Disterigma agathosmoides (Wedd.) Nied.
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Habitat
This species is found in western South America, specifically from Colombia to Ecuador. It grows as an epiphyte within the wet tropical biome—favoring the humid cloud forests, often on shaded tree branches or near forested slopes with high moisture levels. 
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Description
Disterigma agathosmoides is a compact hemiepiphytic shrub, frequently rooting onto host trees or mossy substrates. Its leaves are coriaceous, less than 3 cm long, elliptic to lanceolate in form, with smooth or slightly crenate margins and inconspicuous venation. The plant produces solitary axillary flowers, typically subtended by small, caducous bracts. Flowers are often campanulate to cylindrical, with four or five petals, and contain 8–10 stamens around the tubular corolla. Following pollination, the plant forms a thick-walled berry, usually in blue-black or translucent white hues. 
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Cultivation
To simulate its natural montane cloud forest habitat, grow under bright but indirect light with consistently high humidity. Use a well-draining, humus-rich substrate that retains some moisture—such as peat or leaf mold mixed with orchid bark or perlite—in slightly acidic to neutral pH. Keep the substrate evenly moist without waterlogging. This species prefers cool to intermediate temperatures (daytime 15–20 °C; nights around 10–15 °C) and thrives in greenhouse or terrarium conditions resembling its native environment. Apply fertiliser sparingly, using a dilute, balanced feed only during active growth. 
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Specifications
Plant Size:
Plant Family: Ericaceae
Plant Passport: Disterigma agathosmoides B 140084 C [user input] D GB
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References
Kew Science – Plants of the World Online 
NYBG Flora Neotropica monograph summary on genus Disterigma 
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Let me know if you'd like a side-by-side comparison with similar species such as Disterigma alaternoides or D. codonanthum, to highlight distinguishing features.