A Grammatical Dictionary of Botanical Latin

uter, utra, utrum (indefinite relative pron.): whichsoever of two, the one (of two) which; either of the two, one or the other, one of two; see uterque, utraque, utrumque to which the grammatical points apply; see ‘two;’

             singular                            plural   
         m.     f.     n.                   m.        f.        n.   
Nom.    uter   utra  utrum                 utri     utrae      utra   
Gen.          utrius                     utrorum    utrarum    utrorum   
Dat.           utri                                 utris   
Acc.    utrum utram  utrum                 utros    utras      utra   
Abl.    utro   utra  utro                           utris

- utram harum capsularum maiorem, whichsoever (one) of these (two) capsules is the larger.

- uter florum fertilis, hieme caducus, either one of the (two) fertile flowers, in winter is caducous.

- utra superficierum aetate purpurascens, either (one) of the surfaces with age becomes purple.

NOTE: utrum (accusative of uter, in ‘uter,utra,utrum,’ q.v.] becomes an adverb, ‘whether’ used together with the conj. an, ‘or;’ utrum … an …, ‘whether … or;’ see ‘an (conj.);’

- [algae] Quae [sc. cellulae] quomodo formentur, utrum per processum divisorium, an per cellulam liberam cum utriculo matricali coalescentem, ulterius inquirendum est (Braun), which [sc. cells] in whatever way they may be formed, whether through the divisor [i.e. place of division] of the process, or rather perhaps through a free cell coalescing with the mother [i.e. generative] utricle, is to be further investigated.

- [algae] Utrum his adnumerandae sint Diatomeae, an potius ad regnum animale abeant, inter Auctores gravissimos nondum constat (Agardh), whether these Diatomeae should be included, or preferrably to be transferred into the animal kingdom, is not yet agreed upon among the most respected authors.

Uter, gen. sg. uteris (s.m.III), abl.sg. utere, gen. pl. uterium, a bag or bottle made of an animal's hide, wine-, oil-, water-skin (Lewis & Short); a leather bag (for holding liquids, etc.) (Glare); see uterus,-i (s.m.II).