Oreogrammitis adspersa (synonym Grammitis adspersa Blume)

Oreogrammitis adspersa (synonym Grammitis adspersa Blume) is a small, elegant epiphytic species native to the wet tropical forests of western and central Malesia, including Borneo, Java, Malaya, the Philippines, Sumatra, and surrounding regions.

Features:

• Rhizome & fronds: Arising from short, upright or creeping rhizomes covered in lance-shaped brown scales. The plant forms tufts of simple, entire fronds—lanceolate to oblanceolate, measuring approximately 3–10 cm long and 3–6 mm wide—with smooth, paper-like texture on both surfaces.

• Sori: Sporangia grouped in small, elongated (elliptic) sori situated obliquely to the midrib on the underside of fronds; not sunken into the leaf tissue.

Care Tips:

• Light: Prefers bright, diffused light; avoid direct sun to protect delicate fronds.

• Soil & Substrate: Use a well‑draining, organic-rich mix (similar to epiphytic ferns), or mount on bark/moss where moisture can cling.

• Moisture: Keep medium consistently moist but not waterlogged; mist frequently to maintain high humidity levels.

• Temperature: Thrives in warm, humid conditions typical of tropical understories (around 20–30 °C).

• Propagation: Best achieved by division of rhizome clumps; spore propagation possible but slow.