The labellum is strong yellow margined of bright purple; at the base it is fused to the column base forming a narrow spur shaped nectary; it is internally slightly pubescent and has a thick callus that splits in five digitate keels on the disk; the central lobe is partially saccate and has two longer fringes at the apex.
32.
The Mitchell Delta is a classic form of digitate delta ( from Latin " digittus ", having finger or toes ) and is located near the western shoreline of Lake King at Eagle Point Bluff, extending into the lake as silt jetties formed by alluvial deposition of sediment . and is one of the finest examples of a classic digitate delta in the world.
33.
The Mitchell Delta is a classic form of digitate delta ( from Latin " digittus ", having finger or toes ) and is located near the western shoreline of Lake King at Eagle Point Bluff, extending into the lake as silt jetties formed by alluvial deposition of sediment . and is one of the finest examples of a classic digitate delta in the world.
34.
The shape of the tentacles is generally adapted to the diet, and to the size of the particles to be ingested : the filter-feeding species mostly have complex arborescent tentacles, intended to maximize the surface area available for filtering, while the species feeding on the substratum will more often need digitate tentacles to sort out the nutritional material; the detritivore species living on fine sand or mud more often need shorter " peltate " tentacles, shaped like shovels.
