from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Biology Inverted or seemingly turned upside down, as the flowers of most orchids.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having the appearance of being upside down
from the GNU version of the Collaborative International Dictionary of English
- adj. Inverted in position; appearing to be upside down or reversed, as the flowers of the orchis and the leaves of some plants.
from The Century Dictionary and Cyclopedia
- Inverted; reversed; appearing as if turned upside down.
- In botany, inverted: said specifically of flowers, like those of orchids, in which by a half-twist of the pedicel or ovary the posterior petal becomes lowermost; also of certain agaric fungi, in which the hymenium is on the upper instead of the under side of the pileus.
- In entom, same as resupine.
CREPIDOTUS Fr. In _Crepidotus_ the pileus is lateral, or eccentric, and thus more or less shelving, or it is resupinate, that is, lying flat or nearly so on the wood.
Youth had recoiled or found itself resupinate from a collision with this single word.
Amongst orchids, where the pedicel of the flower or the ovary is normally twisted, so that the labellum occupies the anterior or inferior part of the flower, it frequently happens, in cases of peloria and other changes, that the primitive position is retained, the twist does not take place, and so with other resupinate flowers.
It is usually sessile and attached to the side of dead branches, logs, etc., in a shelving manner, or sometimes it is resupinate.
In the genus _Claudopus_, recognized by some, the pileus is eccentric or lateral, that is, the stem is attached near the side of the cap, or the cap is sessile and attached by one side to the wood on which the plant is growing; or the plants are resupinate, that is, they may be spread over the surface of the wood.
The plants grow usually on the underside of rotten wood or bark, and then the upper side of the cap lies against the wood, and is said to be resupinate.
In the resupinate forms the cap is attached usually near one side, and then is produced more at the opposite side, so that it is more or less lateral or eccentric.
Hymenium usually below (or on the outer surface when the plant is spread over the substratum), warted, tuberculate, or with stout, spinous processes; or with interrupted vein-like folds in resupinate forms.
The genus _Pleurotus_ is usually recognized without difficulty among the fleshy, white-spored agarics, because of the eccentric (not quite in the center of the pileus) or lateral stem, or by the pileus being attached at one side in a more or less shelving position, or in some species where the upper side of the pileus lies directly against the wood on which the plant is growing, and is then said to be _resupinate_.
Some are provided with a more or less regular cap and a stem, while others are shelving or bracket shaped, and still others are spread out over the surface of the wood (resupinate).