A Grammatical Dictionary of Botanical Latin

rubellus,-a,-um (adj.A): reddish; rubello-violaceus,-a,-um (adj.A): reddish violet; > L. rubellus,-a,-um (adj.A): “somewhat red, reddish; (specifically as the name of a kind of vine, = rubellanus” (Glare) > dim. ruber,rubra,rubrum,‘red’];

- P. hispanica Dec. differt corollis rubellis (Boissier), Pistobinia hispanica Dec. differs by the reddish corolla.

- lignum, observante clar. C. Moore, rubellum, ei Mahagoni aemulum (F. Mueller), the wood, by the observation of the well-known C. Moore, reddish, like Mahogany.

- [Rosa maialis] rosa minor rubella flore, quae a mense Maio Maialis’ dicitur (Desf.), a smaller rose, with a reddish flower, which is called ‘maialis’ after the month of May [i.e. the May-month].

- [fungus] pilei color variabilis, perquam difficilis descriptu, nunc e rubello fulvescens, nunc ex alutaceo aut subcervino purpurascens (S&A), the color of the pileus variable, extremely difficult to describe, sometimes reddish to fulvescent [i.e. yellowish-brown], sometimes from leather-colored [i.e. pale brown] or somewhat tawny [i.e. deer-colored] to purplish.

Sphagnum rubellum, rubellum: reddish, somewhat red, from the Latin diminutive suffix -ellus and the adj. ruber, red; for the reddish, sometimes strongly red appearance of these mosses in their wet habitats.