In Pitcher Plants
In pitcher plants, the peristome is a reflexed ring (or partial ring) of tissue that surrounds the entrance to the digestive tube in these plants. It often (for example in Cephalotus and Nepenthes) possesses sharp, overhanging 'teeth' which aid in prey retention. It is often studded with nectar secreting glands, hence its popular name, nectar roll.
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Famous quotes containing the words pitcher and/or plants:
“Indolence is heaven’s ally here,
And energy the child of hell:
The Good Man pouring from his pitcher clear
But brims the poisoned well.”
—Herman Melville (1819–1891)
“And time brings down what is both strong and tall.
But plants new set to be eradicate,
And buds new blown, to have so short a date,
Is by his hand alone that guides nature and fate.”
—Anne Bradstreet (c. 1612–1672)