- published: 13 Mar 2016
- views: 2354
In botany, a drupe is an indehiscent fruit in which an outer fleshy part (exocarp, or skin; and mesocarp, or flesh) surrounds a shell (the pit, stone, or pyrene) of hardened endocarp with a seed (kernel) inside. These fruits develop from a single carpel,[citation needed] and mostly from flowers with superior ovaries. The definitive characteristic of a drupe is that the hard, lignified stone (or pit) is derived from the ovary wall of the flower. In an aggregate fruit composed of small, individual drupes, each individual is termed a drupelet.
Other fleshy fruits may have a stony enclosure that comes from the seed coat surrounding the seed, but such fruits are not drupes.
Some flowering plants that produce drupes are coffee, jujube, mango, olive, most palms (including date, coconut and oil palms), pistachio, white sapote, and all members of the genus Prunus, including the almond (in which the mesocarp is somewhat leathery), apricot, cherry, damson, nectarine, peach, and plum.
Corking is a nutritional disorder in stone fruit caused by a lack of boron and/or calcium.[clarification needed]
Miles away from
Those that matter
Unfamiliar place
Hours bleed out and
Days tail off then
Night degrades to gray
Crooked timber
Keep me warm and safe
Bells toll slowly
Loud dark iron
Can't place where I am
No clear signal
Scraping dragging
Fate pulls faces
Crooked timber
Steer me keep me sane
Times' attrition
Grinds these landscapes
Sifts them into shape
My resistance
To it's pressure
Buckles more each day
Crooked timber
That we can't make straight