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Anthurium ramosii Croat

Introduction & Overview

Common and Scientific Names

  • Scientific Name: Anthurium ramosii Croat
  • Common Name:  None widely recorded

Quick Facts

  • Origin:  Endemic to Colombia (Department of Chocó)
  • Features: Ovate‑lanceolate, velvety leaves, greenish‑pink spathes, and stipitate reddish spadices

Taxonomy & Classification

  • Genus: Anthurium
  • Botanical Background: Described as a new species by Thomas B. Croat in Willdenowia (2010), based on material collected on Cerro Torrá by Ramos and Silverstone‑Sopkin.

Natural Habitat & Distribution

  • Geographical Range: Known only from its type locality on Cerro Torrá, Chocó Department, Colombia, at ca. 2000 m elevation.
  • Environment: Occurs in premontane rain forest life zones with persistent cloud cover, high humidity, and rich humus soils on steep, well‑drained slopes.

Morphological Characteristics

Leaves

  • Terete, sulcate, 8–13 cm long
  • Ovate‑lanceolate to narrowly elliptic, subcoriaceous
  • Dark green and velvety above, glandular‑punctate on both surfaces
  • 9–14 primary lateral veins at 65–80°, collective veins from basal veins

Inflorescence (Spadix & Spathe)

  • Slender, 13–33.5 cm long peduncle
  • Spathe is greenish‑pink to red, lanceolate
  • stipitate spadix, reddish to purplish‑brown
  • Four flowers per spiral

Growth Habit

  • Terrestrial vine
  • Caudex elongated and rooting at nodes
  • Cataphylls persisting as fibrous remains

Cultivation & Care

Light Requirements

  • Bright, indirect light, approximately six hours daily, to promote healthy foliage without leaf scorch

Watering & Humidity

  • Keep growing medium consistently moist but never waterlogged
  • Indoors, water once weekly
  • Maintain humidity above 60% to mimic cloud‑forest conditions

Soil & Potting Mix

  • A coarse, well‑draining mix (50% orchid bark + peat or coco coir + perlite) to ensure aeration around roots

Temperature & Fertilizer

  • Ideal range 16–22 °C (61–72 °F)
  • A balanced, diluted fertilizer every two weeks during active growth

Propagation Methods

Division & Cuttings

  • Best by stem cuttings with at least one node or by dividing rooted sections of the caudex
  • Keep cuttings warm and humid until roots form


Seeds

  • Propagation is uncommon
  • Fresh require sterile medium and warm (25 °C), humid conditions
  • Germinating in 4–8 weeks

Common Pests & Diseases

Typical Issues

  • Mealybugs, spider mites, and scale, thrips
  • Look for leaf stippling, webbing, cottony masses
  • Root rot from overwatering
  • Bacterial blights in poorly ventilated settings

Treatment Recommendations

  • Dislodge pests with strong water spray
  • Apply insecticidal soap or neem oil
  • For severe infestations, use pyrethrin‑based sprays or systemic insecticides
  • Prevent root rot by ensuring good drainage and moderate watering

Notable Traits & Uses

  • Named for Jorge Ramos, co‑collector of the type specimen, epithet honors the indigenous Ramos settlement near Cerro Torrá
  • Small berries likely provide food for local frugivorous birds
  • Collectors prize its vine habit and unusual pink spathes on slender stalks, 
  • Remains too rare for general cultivation

Conservation & Availability

Wild Population Status

  • Known only from a single location; habitat specificity suggests potential vulnerability

Market Availability

  • Not listed in major commercial databases, indicating it is effectively unavailable outside specialist collections

References & Resources

Further Reading

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