A Grammatical Dictionary of Botanical Latin

introrsus,-a,-um (adj.A), introversus,-a,-um (part.A): “ turned towards the axis to which it appertains; as an anther when its valves face the center of a flower” (Lindley); introrse, turned towards the inside, opening toward or on the inside, turned towards the axis, situated on the inner side of a filament, as an anther; “having its line of dehiscence toward the gynoecium” (WIII) [> L. intro + versus, q.v.]; opp. extrorsus,-a,-um (adj.A), turned toward the outside; cf. latrorsus,-a,-um (part.A), turned toward the side(s);

- antherae lineares, birimosae, interiores erectae introrsae, exteriores recurvae extrorsae (B&H), anthers linear, with two fissures, the inner erect, facing inwards, the outer recurved, facing outwards.

- antherae cordato-ovatae introrsae biloculares basifixae (F. Mueller), anthers cordate-ovate, turned towards the inside, bi-locular, basifixed.

- antherae didymae introrsae dorsifixae (F. Mueller), the anthers twinned, facing inward, attached on the back.

- antherae introrsae (DeCandolle), anthers facing inward.

- loculis rima lonigitudinali saepius dehiscentibus, introrsis lateralibusve nunquam extrorsis (DeCandolle), with the locules [of the anther] more often dehiscent by a longitudinal fissure, facing inward or to the side, never facing outward.

- [musci] ciliis inconspicuis, forte quoniam introversae sunt (C. Mueller), with the cilia inconspicuous, perhaps because they are turned towards the inside.

NOTE: Dehiscentia,-ae (s.f.I) introrsa (part.A), adv. introrsum), of an anther, dehiscing longitudinally inward.