"By the third day after the flower opens, its stigma collapses and, with the finger-like appendage, comes into contact with the pollen-carrying anther. This enables the pollen to extend their tubes through the appendage into the stigma and subsequently into the ovary, thereby fertilizing the plant."
Reposted from
Science X / Phys.org
A unique self-pollination mechanism has been identified in the orchid Stigmatodactylus sikokianus, involving a finger-like appendage that facilitates pollen transfer three days post-flower opening. doi.org/g82t33
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