A Grammatical Dictionary of Botanical Latin

rare (adv.): far apart, sparsely, thinly, of a loose texture, loosely, at wide intervals; (of time) seldomly, rarely (Lewis & Short); compar. rarius (adv.), superl. rarissime (adv.)[> rarus,-a,-um (adj.A), q.v.]; opp. frequents,-entis (adj.B), q.v.; opp. dense (adv.), thickly, densely;

- margine foliari rare serrato-aristato, rarenter integro, with the leaf margin sparsely serrate-aristate, rarely entire.

- testa membranacea saepeque pericarpio adhaerente, rarius crassiore (B&H), test membranaceous and often with the pericarp adhering, more rarely [i.e. less often] thicker.

- testa membranacea saepeque pericarpio adhaerente, rarius crassiore (B&H), test membranaceous and often with the pericarp adhering, more rarely [i.e. less often] thicker.

- in parte autem meridionali, trans Atlantem sita, summe arenosa et rarissime imbribus irrigata, aestate coelum ardens et torridum (Desf.), however, in the southern part, situated across the Atlas Mts., it is extremely sandy and most rarely watered by the rains, in summer the heavens [i.e. the weather] burns fiercely and is parched.

- [moss] ad arborum praesertim Pinuum [sic] et Betularum truncos per totam Europam satis vulgare, rarissime tamen fructiferum (C. Mueller), on the trunks of trees, especially of Pine and Betula quite common throughout the whole of Europe, however, very rarely fruit-bearing.