Anthurium miriamiae Croat

• Genus: Anthurium
• Botanical Background: Described by Thomas B. Croat in Aroideana 45(2): 357 (2022), this species adds to the surge of new Anthurium taxa documented from Colombia’s Pacific slope

• Geographical Range: Known only from the Bajo Calima forestry concession near Buenaventura, Valle del Cauca, at about 50 m elevation
• Environment: Occurs in a transition zone between tropical wet and pluvial forests, with 7,000–8,000 mm annual rainfall, high humidity, and temperatures averaging 24–28 °C at 0–150 m

Leaves

• Chartaceous, elliptic to obovate (5–10 cm × 2–4 cm), base cuneate, apex acuminate
• Adaxial surface glossy with black glandular punctations and scalariform secondary veins typical of sect. Porphyrochitonium

Inflorescence (Spadix & Spathe)

• Slender peduncle 3–6 cm long; spathe tubular, pale green, ~2–3 cm long
• Spadix cylindrical, pale green, ~4–5 cm long; flowers bisexual, arranged in tight spirals

Growth Habit

• Epiphytic subshrub with short, thick, highly branched internodes and persistent reddish‑brown cataphylls
• Roots emerging at nodes for anchorage

Light Requirements

• Bright, indirect light

• Avoid direct sun to prevent leaf scorch

Watering & Humidity

• Keep substrate evenly moist but not waterlogged

• Maintain high humidity (>60 %)

Soil & Potting Mix

• Use a well‑draining, peat‑based mix enriched with orchid bark or perlite

Temperature & Fertilizer

• Ideal range 18–25 °C

• Apply a balanced, water‑soluble fertilizer monthly during active growth

Division and Cuttings

• Most reliably propagated by dividing clumps or rhizomes, ensuring each division has roots and shoots

  
  

Seeds

• Can be sown on sterile, moist media under high humidity
• Germination may take several weeks

Typical Issues

• Spider mites, mealybugs, scale insects
• Inspect regularly and isolate new plants

Treatment Recommendations

• Use insecticidal soap or neem oil for pests

• Ensure good drainage

• Avoid overwatering to prevent root rot

• Use insecticidal soap or neem oil for pests

• Ensure good drainage and avoid overwatering to prevent root rot

• Sought by aroid collectors for its rarity and the striking contrast of its minute pendent leaves against its pale green inflorescence
  

Wild Population Status

• Endemic to a restricted locality

• Likely vulnerable due to habitat alteration but not yet assessed by IUCN

Market Availability

• Extremely rare in cultivation

• Occasionally offered by specialist aroid nurseries and through private collectors