A Grammatical Dictionary of Botanical Latin

prorsus (adv.): forward, ahead; straight on, right ahead; by all means, certainly, definitely; absolutely; wholly, entirely; exactly, definitely, justly, precisely, strictly; in a word, briefly; certainly; the word may precede or follow a word or phrase, intensifying it; after ‘et’ or similar words, “emphasizing the second and stronger of two related terms: ‘more than that, even, indeed” (Glare); the word may strengthen a negative; opp. rursus (or rursum or rusus) (adv.) back, backwards; see rursum (adv.);

- (strengthening a negative) species ad 80, sat distinctae, vel nobis cognitae vel bene descriptae; praeterea plurimae variis auctoribus nominatae, quarum aliae male descriptae v. prorsus ignotae, aliae certe falsae (B&H), as many as 80 species, quite distinct, or studied by us or are well described; besides these, many are named by various authors, others of which are badly described or entirely unknown, others certainly false.

- SCYPHARIA includit species 2 v. 3, Americas trópicas occidentalis et Ins. Galapagos incolae, quibus discus inconspicuus, fructus (prorsus ignotus, an rite descriptus ?) 2-locularis drupaceus et indehiscens (B&H), Scypharia includes 2 or three species, dwellers of the western American tropics and the Galapagos Islands, with which the disc is inconspicuous, the fruit (entirely unknown, is it correctly described?) 2-locular, like a drupe and indehiscent.

- fungus prorsus excentricus, a fungus strictly off-center.

- sapor prorsus mitis, nec ullatenus amaricans (S&A), the taste strictly mild, not in any respect whatever being bitter.

- [fungi] lamellarum natura situsque prorsus qualis in praecedente (S&A), the nature of the gills and their position precisely as in the preceding.

- [fungi] stipite tenui prorsus cylindrico (S&A), with the stipe thin strictly cylindric.

- [fungi] stipitis forma ac dilatatio prorsus qualis in praecedente (S&A), the shape of the stipe and its expansion strictly of such a nature as in the preceding.

- [fungi] margo tumidulus formaque tota prorsus qualis in praecedente (S&A), the somewhat swollen margin and the whole shape precisely of such a sort as in the preceding.

- lamellis prorsus et constanter immutabilibus (S&A), with the lamellae strictly and constantly unchanged.

- (moss) pedicello vaginula laxa cylindrica prorsus incluso, with the pedicell [i.e. seta] entirely included in the flaccid, cylindric vaginula.

- (moss) folium perigonii intimum brevissimum, antheridia prorsus involvens (DozyMoeken), the innermost leaf of the perigonium very short, entirely enveloping the antheridium.

- praeclare distincta species: disciformis convexo-plana vel prorsus applanata (B&H), a species that is very well differentiated: disc-shaped, convexly-flat or absolutely flat.

- frequens in hortis eorumque rejectamentis folia calycesve Dianthi Caryophylli marcidos aut prorsus arefactos semiputres incolit (S&A), frequent in gardens, and on litter, it settles on withered leaves, or the shrivelled [but attached] calyces of Dianthus Caryophyllus or entirely withered, half rotted ones.

- capsula globoso-ovata calyce inclusa mono-rarius di-sperma, septis germinis prorsus obliteratis (Mueller), the capsule globose-ovate, included with the calyx, one- more rarely two-seeded, with the septa of the ovary completely obliterated.