Luminosa Petaluma, from Latin 'luminosa' (luminous) and 'petaluma' (petal-like), is a rare bioluminescent species in genus Corallium, family Celestialaceae. It features translucent, ruffled bluish-white petals with intricate venation and dense orange pollen. Petals are radially arranged and undulating, supported by slender ribbed stems 10-30 cm tall. Bioluminescence occurs at 420-490 nm, emitting soft blue-green light from petal margins and veins via luciferin-luciferase pathways. Native to tropical caves with stable 15-25°C, dim, humid conditions, it exhibits aquatic-like undulation possibly aiding nutrient uptake. Ecologically, it attracts nocturnal bioluminescent pollinators, with pollen on anthers optimized for low-light transfer. One of ten species in its cluster, it is rare and protected, exemplifying evolutionary adaptation to subterranean niches combining delicate morphology and bioluminescent signaling for reproductive success and biodiversity in dark tropical ecosystems.