The frond, though not strictly speaking adnate, as it seems to have no attachments, is usually spread loosely over other polyzoa.
"Narrative Of The Voyage Of H.M.S. Rattlesnake, Commanded By The Late Captain Owen Stanley, R.N., F.R.S. Etc. During The Years 1846-1850. Including Discoveries And Surveys In New Guinea, The Louisiade Archipelago, Etc. To Which Is Added The Account Of Mr. E.B. Kennedy's Expedition For The Exploration Of The Cape York Peninsula. By John Macgillivray, F.R.G.S. Naturalist To The Expedition. In Two Volumes. Volume 1." by John MacGillivray
Clitocybe (decurrent or adnate).
"Among the Mushrooms" by Ellen M. Dallas and Caroline A. Burgin
Thallus adnate toward the center, more or less ascending toward the margins, 7 to 15 cm.
"Ohio Biological Survey, Bull. 10, Vol. 11, No. 6" by Bruce Fink and Leafy J. Corrington
The =gills= are adnate, broad, white, gray, then black.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc." by George Francis Atkinson
The spermoderm of P. flexilis is reduced to a marginal border, slightly produced into a rudimentary wing adnate to the nut.
"The Genus Pinus" by George Russell Shaw
The gills are rather thick, narrowed behind, emarginate or acutely adnate, sulphur-colored.
"The Mushroom, Edible and Otherwise" by M. E. Hard
Cap nearly cylindrical, blunt at the top, and usually much longer than the stem, adnate.
"Student's Hand-book of Mushrooms of America, Edible and Poisonous" by Thomas Taylor
P. more regular, convex, even, yellowish; g. almost adnate; s. fistulose.
"European Fungus Flora: Agaricaceae" by George Massee
This term is the counterpart of coalescent, as free is the counterpart of adnate.
"The Elements of Botany" by Asa Gray
Seeds 2 or more, bony, in a 2-beaked woody pod opening above, the base adnate to the calyx-tube.
"The Manual of the Botany of the Northern United States" by Asa Gray