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A Grammatical Dictionary of Botanical Latin

 
Three: "the cardinal numerals unus (1), duo (2) and tres (3) are declined; the others from quatuor (4) to centum (100) are used unchanged whatever the gender and case of the noun which they qualify ..." (Stearn); cf. ternus,-a,-um (adj.A): three;
       [no singular]       always plural   
                           m. f.      n.   
Nom.      -------           tres    tria         (always plural)  
Gen.      -------               trium    
Dat.      -------               tribus    
Acc.      -------           tres    tria   
Abl.      -------               tribus
NOTE: tres, tria represent the cardinal number ‘three’

tertius,-a,-um (adj.A) represents the ordinal number (numeral) ‘third.’

NOTE: ‘tribus’ is also the spelling of various cases of ‘tribe:’ tribus, gen.sg. tribus (s.f.IV); see tribe;

- sporae tres, spores three.

- (moss) sporangium e partibus tribus essentialibus compositum (C. Mueller), the sporangium is composed of three fundamental parts.

- (moss) flos femineus tribus, rarissime quatuor genitalibus filisque succulentis articulatis brevibus ditatur (Hedw.), the female flower enriched with three, most rarely four sex organs and jointed, short succulent filaments [i.e. paraphyses] [NOTE: the word ‘three’ is declined; the word ‘four’ is not.]

- coloniae aetate duarum vel trium hebdomadum, colonies at the age of two or three weeks (2- or 3-week-old colonies) (Stearn).

- tria paria pinnarum, three pairs of pinnae.

- rami tres ramulis tribus, branches three with branchlets three.

- tres dentes, three teeth.

- tribus laminis, with three laminae.

- capitula solitaria vel aggregata bina vel tria, capitula solitary or aggregated paired or three.

- floribus albis ad basem loborum inferiorum trium maculis ianthinis carentibus, with white flowers at the base of the lower three lobes lacking violet spots.

- valvis sex, quarum tres exteriores reflexae, tres interiores erectae, with valves 6, three exterior of which are reflexes, the three interior ones erect.

- diametro coloniali post dies tres numero medio 3.4 mm, et post dies septem 7.5 mm attingenti, with the colonial diameter after three days on average 3.4 mm, and after seven days 7.5 mm attaining.

- ovarium triloculare trigonum, stylis tribus, ovary 3-chambered 3-angled, with styles 3 (Stearn).

- mycelia aetate duarum vel trium hebdomadum longitudinem 2-3 cm. attingentia, mycelia at the age of two or three weeks attaining a length of 2-3 cm.

- inflorescentia in dichasia tria disposita, inflorescence into three dichasia organized.

- genus primo intuitu facile in tria divisibile, a genus at first glance easily divisible into three.

- tria Graecorum genera sunt, quorum uni sunt Athenienses (Cicero), there are three kinds of Greeks, some of whom are Athenians.

Ptinus fur L., the 'scarabaeus trium literarum' the beetle of three letters.

Note: tres, tria in Latin = Greek treis (masc. and fem. plural) and tria (neuter plural): in Greek ‘three;’ see tri-.

Trillium,-ii (s.n.II) L., “Name from tres, three; all the parts being in threes” (Fernald 1950); Trisetum,-i (s.n.II), “Name from tres, three, and seta, a bristle, from the awned and 2-toothed lemma” (Fernald 1950).
three times, thrice: ter (adv.), q.v.
three each, three together, three: terni, ternae, terna (num. distr. pl. adj.A), q.v.
three each, three together: trini,-ae,-a (num. adj. distr. pl.), q.v.
threefold, three times as much: see thrice.
three-: in both L. and Gk. comp., tri-; see tri-; see ter (adv.), ter- (in L. comp.), ‘three times, thrice;’ cf. trich-, tricho-, in Gk comp. three, threefold; cf. tris-, in Gk. comp. thrice, three times; see triple;

- trigonus, triangularis, triangulus, triquetrus, 3-angled; trichromus, trichrous, tricolor, 3-colored; trianthus, triflorus, 3-flowered; triphyllus, trifolius, with 3 leaves or leaflets; tripleurus, tricostatus, 3-ribbed; tripterus, trialatus, 3-winged; trimorphus, triformis, existing in 3 forms, e.g. with short, intermediate and long stamens or with 3 types of florets or fruits; see tri-.

- trifaux, gen. sg. trifaucis (adj.B), having three throats
three-colored: tricolor, gen. sg. tricoloris (adj. B), trichrous,-a,-um (adj.A), trichromus,-a,-um (adj.A).
three-nerved: trinervis,-e (adj.B), q.v., trinervius,-a,-um (adj.A); trinervatus,-a,-um (adj.A); see triple-nerved;

- [Arenaria] sepalis acuminatis margine membranaceis trinerviis (DeCandolle), with the sepals acuminate, at the margin membranaceous, with three nerves.

- [Arenaria] foliis subulatis trinerviis obtusinsculis,(DeCandolle), with the leaves subulate, three-nerved, somewhat obtuse.

- [Arenaria] sepalis acutis villosis obscure trinerviis corollam subaequantibus.(B&H), with the sepals acute, villous, obscurely three-nerved, nearly equalling the corolla [i.e. in length].

 

A work in progress, presently with preliminary A through R, and S, and with S (in part) through Z essentially completed.
Copyright © P. M. Eckel 2010-2017

 
 
 
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