A Grammatical Dictionary of Botanical Latin

Tomentum,-i (s.n.II), abl.sg. tomento: tomentum, i.e. dense interwoven hair covering; “the down which produces the tomentose character. (Obsol.) also applied to mycelium” (Lindley); (in bryophytes) “a felt-like covering of abundant rhizoids, on some stems or rarely leaves; e.g. stems of Dicranum, Breutelia” (Magill 1990); “closely implexed wooly hair” (Fernald 1950) [> L. tomentum,-i (s.n.II), the stuffing of a pillow, mattress, cushion]; see rhizoid;

- fungi juniores tomentum molle satis densum, a latere conspectum canescens, aetate progrediente sensim subevanescens, in pileo gerunt (S&A), younger fungi bearing on the pileus a soft, rather dense tomentum, when observed from the side, canescent, dying off with age, gradually disappearing.

Tomenthypnum,-i (s.n.II), a genus of pleurocarpous mosses with felted brown rhizoids throughout the plant (tomentum + hypnum).