A Grammatical Dictionary of Botanical Latin

introrsum (adv.), introrsus (adv.): introrsely, towards the inside, internally, inwardly, on the inside, facing or opening on the inside; “turned inward, towards the axis” (Jackson); turned inwards from the axis of growth of the series of organs to which it belongs [> L. intro + versus (adv.)]; opp. extrorsum (adv.); see latrorsum (adv.); see direction;

- introrsum spectans, facing or looking inward.

- antheris introrsum 2-locellatis, with anthers inwardly 2-locellate.

- loculis introrsum rarissime lateraliter v. extrorsum dehiscentibus; with the locules toward the inside, very rarely laterally or toward the outside dehiscing.

- antherarum loculi filamento adnati, introrsum, extrorsum v. lateraliter dehiscentes (B&H), the locules of the anthers adnate to the filament, dehiscing facing inward, facing outward or laterally.

- antherae (vulgo subsessiles) circa gynoecium in annulum connatae v. conniventes, introrsum déhiscentes (B&H), dehiscing on the inside, anthers (commonly subsessile) around the gynoecium fused into a ring or converging [i.e. coming together without fusing].

- stamina 10-oo, basi urceolo introrsum adnata (B&H), stamens 10-[indefinite], at the base grown inwardly to the urceolus.

- antherae innatae, loculis rimis lateralibus v. introrsum v. poris apicalibus dehiscentibus (B&H), the anthers innate [i.e. attached to the apex of the filament], with the locules with a lateral fissure either on the inside or by apical pores dehiscing.

- coronae squamae a latere compressae concavae v. cucullata, introrsum squamella v. ligula auctae (B&H), the scales of the corona compressed from the side, concave or cucullate, increased on the inside by a small scale [squamella] or a ligule.

- pollinia in quoque loculo solitaria, transversa v. obliqua, saepe curvula et (ob lobos stigmatis corpuscula ferentes valde prominentes) introrsum spectantia (B&H), the pollinia in each locule solitary, transverse or oblique, often slightly curved and (due to the lobes of the stigma bearing corpuscula, [the lobes] strongly prominent) facing inwards [Gonolobus].