A Grammatical Dictionary of Botanical Latin

revolutus,-a,-um (part A): revolute, rolled backwards; rolled back from the edge (i.e. towards the lower side) or apex, especially of leaf margins; “rolled backwards; i.e. out of the direction ordinarily assumed by similar other bodies; as certain tendrils, and the sides or ends of some leaves” (Lindley); (in bryophytes) “rolled downwards (abaxially) and backwards, referring to a leaf margin” (Magill 1990) [> L. revolvo,-volvi,-volutum, 3, to roll back; to unroll, unwind; to revolve; return, come back]: opp. involutus,-a,-um (part.A); see volutus,-a,-um (part.A);

- marginibus erectis inferne subrevolutis et versus folii apicem magis minusve involutis, with the margins erect, below nearly revolute and toward the apex of the leaf more or less involute.

(of a bud (gemma): revoluta, (gemma revoluta), when the edges of the leaves are rolled outwards, as in the willows, (Salices) (Willdenow).

- folium revolutum, “a revolute leaf; having the edges rolled back, or towards the lower surface” (Barton).

- cirrus revolutus, “a revolute tendril; when a spire of the screw, having made half a revolution, turns back in a contrary direction” (Barton).

- corolla revoluta, “rolled back or downwards; having the petals rolled back; as in Asparagus, Medeola and Lilium” (Barton); said also of a stigma and a legume.

Roaldia revoluta [moss] (revolute; from the perfect past participle revolutus, rolled back, as from the edge to the lower side, from the verb revolvo, to roll back or backwards; for the leaves described with margines distinctly reflexed or revolute throughout.