A Grammatical Dictionary of Botanical Latin

Sulcus,-i (s.m.II), abl.sg. sulco, nom.pl. sulci, acc.pl. sulcos, dat. & abl. pl. sulcis: 'a furrow made by the plough; a long, narrow trench, a ditch; a rut, track; a wrinkle of the skin;' furrow or groove (Diatoms & generally), channel; the furrowlike aperture of a pollen grain; see duct, vessel; see furrow; see ringleiste (Diatoms);

- semen sulcis sinuatis verticalibus exsculptum (B&H), the seed incised with sinuate, vertical furrows.

- putamen a ventre sulco lato profundo in longitudinem exaratum, stone on the ventral side by a furrow broad deep lengthwise ploughed out (Stearn).

- sulcus resorptus, resorption channel or furrow (Sphagnum).

- fila saepe appendicibus lateralibus conspicuis sulcum nectariferam formantibus, filaments often with conspicuous lateral appendages forming a nectar groove.

- pedunculo sulco amplo profundo percurso (Steph.), with a peduncle run through with a large, deep sulcus.

- putamen utrinque sulcatum, stone on both sides grooved.

- sulci ampli, magnam valvae partem occupantes, furrows big, a large part of the valve occupying.

- semen circa processum internum induplicatum v. hippocrepicum, rarius rectum laminam intra sulcam lateralem recipiens (B&H), the seed around the internal process induplicate or hippocrepiform, more rarely straight receiving the lamina within a lateral furrow.

- sulco nectarifero glabro viridi, with nectarial furrow glabrous green (Stearn).

- pileus grammatus, cristis atro-griseis, sulcis bubalinis, pileus with raised lines, the crests dark gray, the furrows buff.

- Nux lignosa, excavata sulcis & apophysibus; 3-5-locularis (Swartz), the nut woody, hollowed out, with [pronounced furrows] and enlargements [perhaps ridges between the sulci], 3-5-locular [HIPPOMANE Mancinilla].

- [conchology] Mitra virgo. Mitr. testa abbreviato-conica, superne obesa, spira truncata, depresso-occulta; transversim sulcis subtillissimis, subpunctatis, undique creberrime insculpta (L.A.Reeve), with the test shortened-conic, above stout, with the spire truncate, depressed-occult [i.e. hidden from view]; all over most closely transversely engraved with the most faint, somewhat punctate, grooves.

NOTE: the sulci are “the lamellae of certain Fungals” (Lindley).

-sulcus,-a,-um: in L. comp., -grooved,-sulcous;

- bisulcus, with two grooves; trisulcus, with three grooves, 2-sulcus, 3-sulcus; sexsulcus, six-grooved or furrowed.

- stylus 3-4-sulcus v. in lobos 3-4 subdivisus(B&H),style 3-4-sulcate or subdivided into 3-4 lobes.