A Grammatical Dictionary of Botanical Latin


Stoma, stomate (Eng.nouns); “one of the minute openings in the epidermis of leaves, stems, and other plant organs through which gaseous interchange between the atmosphere and the intercellular spaces within the leaf occurs; usually the opening together with its associated quard cells and accessory cells” (WIII);” an opening in the moss capsule, often at the extreme base of in the neck; the stoma is generally enclosed by 2 quard cells, sometimes subdivided, occasionally a central slit in a single guard cell; “minute opening in the capsule wall of hornworts, and usually in the capsule neck of mosses, surrounded or bordered by two guard cells (exception, Funariaceae has single cells with opening in the center” (Magill 1990); syn. stomatium,-ii (s.n.II), abl. sg. stomatio (Jackson): stoma,-atis (s.n.III), abl. sg. stomate, nom.& acc. pl. stomata, dat.& abl. pl. stomatibus [> Gk. stOma,-atis (s.n.III), mouth; the mouth of a river (Lat. ostium, q.v.); note ‘stoma’ is not used in Classical Latin (Liddell & Scott)]; cf. propatulum, hydathode, pore; see aperture; see mouth, opening; cf lenticel, “corky spots on young bark, corresponding to epidermal stomata” (Fernald 1950); 1. (in brophytes) the mouth: the opening at the summit of the moss capsule through which spores are shed usually through a hygroscopic surrounding-structure or -structures of tooth-like segments in various arrangements; see –stomus,-i (s.m.II); see -stomum,-i (s.n.II). 2. a breathing pore or aperture in the epidermis, surrounded by two guard-cells, leading into an intercellular space communicating with internal tissue; according to Tschirch of four types; see stomate; angiospermal (stoma angiospermum) archegonial (stoma archegonicum) eisodial (stoma eisodicum) opisthelial (stoma opisthelicum) (Jackson) - [in mosses] theca pyriformis apophysata, cujus collum stomatibus plerumque praeditum (C.Muell.), the theca is pear-shaped, apophysate [i.e. provided with an apophysis], the neck of which is usually provided with stomates. 3. the ostiole of certain Fungi, cf. epiphragma (Jackson); - stomata elliptica, cellulis epidermidis minora vel easdem superficie fere aequantia vel majora, propatulo angusto, cellulis accessoriis magnis, stomata elliptic, smaller than or almost the same on the surface as or larger than the cells of the epidermis, with the stomatal opening narrow, with the guard cells large (Stearn). - Acanthostoma,-atis (s.n.III) Theiss., with spiny mouth. - folia stomatibus convexis cavernisque respiratoriis aere foetis praedita, the leaves provided with convex stomates and respiratory chambers filled with air. eisodal, q.v., eisodial, eisodous: “anterior, as the outer pore of stomates (Tschirch)” (Jackson): eisodicus,-a,-um (adj.A), eisodus,-a,-um (adj.A) [> Gk. eisodos (s.f.) ‘a way in, an entrance;’ - stoma,-ata (s.n.III) eisodicum, abl.sg. stomate eisodico. Vasa exhalantia (nom.pl.n.), abl. pl. vasis exhalantibus [> L. vas, gen.sg. vasis (s.n.III), q.v., a vessel] “(obsol.) imaginary vessels found in the epidermis. They are in reality the sides of confluent cells” (Lindley); = stomates (Lindly); see vas, gen.sg. vasis (s.n.III). Vestibulum,-i (s.n.II), abl. sg. vestibulo: “a chamber above the stoma formed by the depression of the guard-cells, and growth of the cells round them, as in Cycas” (Jackson). NOTE: Latin: os, gen.sg. oris (s.n.III), q.v.; see -stome below; see amphistomatic, anisocytic, cruciferous, caryophyllaceous, diacytic, paracytic, rubiaceous, syndetocheilicus,-a,-um (adj.A).
-stoma,-atis (s.n.III): see stom-.
stoma-bearing or stomata-bearing, stomatiferous: stomatifer,-fera,-ferum (adj.A), “bearing stomates” (Lindley); stomatophorus,-a,-um (adj.A); cf. -stomate (Eng. adj.). NOTE: according to Jackson, stomatifer,-fera,-ferum (adj.A) is also acceptable.