The nodding lower flower in picture of this Disperis tysonii spike has an adventurous or precocious yellow pollinarium protruding unusually. This may be due to a recent, disruptive altercation with a pollinator that hopefully carried some sticky pollen grains (or a whole pollinium attaching via the sticky viscidium), away with it to a receptive destination. Nature is not stingy.
Orchid pollinaria have evolved in many diverse ways in the large Orchidaceae family with its manifold, bilaterally symmetric flower forms, accommodating shapes and sizes of the numerous volunteer species that visit them.
The upper flower in picture shows green spots in the centre of its lateral sepals. These are the bottoms of the spur indentations, seen from looking right into them (Liltved and Johnson, 2012; Wikipedia).
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