Luminis Florabellum, from Latin 'luminis' (light) and 'florabellum' (beautiful flower), is a rare, protected bioluminescent aquatic species from the Etheric Radiantum cluster. Standing 10-30 cm tall and weighing 50-150 g, it has intricately ruffled, translucent petals in a dense rosette with a violet-to-peach gradient. Petal surfaces possess vesicles emitting blue-green (470-530 nm) luminescence internally scattered for an ethereal glow. Semi-rigid, flexible stems adapt to aquatic movements, with few leaves showing faint luminescent margins for underwater light diffusion. Native to the cold (0–10°C) Abyssal Ocean Gardens, it thrives in nutrient-rich, low-light marine habitats. It belongs to a new genus within Etheric Radiantum, with ten species distinguished by bioluminescent spectra and underwater adaptations. Flowers support entomophilous pollination by nocturnal planktonic pollinators attracted to bioluminescent cues. Luminescence via petal glandular luciferin-luciferase reactions lures pollinators and deters herbivory, exemplifying a deep-sea floral bioluminescence evolutionary marvel.