Question: What is the botanical name of the fruit called nar in Serbian ?

Context paragraphs:
NAR 2: NAR 2 (Serbian Nastavni Računar 2, en.  "Educational Computer" 2) is a theoretical model of a 32-bit word computer created by Faculty of Mathematics of University of Belgrade professor Nedeljko Parezanović as an enhancement to its predecessor, NAR 1.  It was used for Assembly language and Computer architecture courses.  The word "nar" means Pomegranate in Serbian.  Many NAR 2 simulators have been created — for instance, one was named "Šljiva" (en.  "plum") as that fruit grows in Serbia, while "nar" does not.

Guttiferales: Guttiferales is a descriptive botanical name.  It was used in the Bentham & Hooker system, the Wettstein system for an order of flowering plants that included the family "Guttiferae".  The latter is also a descriptive botanical name and refers to the latex present in these plants.

Paul Silva: Paul Claude Silva (October 31, 1922 – June 12, 2014) was a phycologist, marine biologist, and algal taxonomist considered to be the world's leading expert in the Chlorophyte green algal genus, "Codium".  Silva was also an expert in botanical nomenclature and was an editor of the International Code of Botanical Nomenclature's Eighth through Sixteenth International Botanical Congresses.  "P.C.Silva" is the standard form to use when citing him as the authority for a botanical name.

Harris Farm Markets: Harris Farm Markets is an Australian grocery chain with 25 different locations in New South Wales plus a butchers store in Willoughby.  The supermarkets specialise in fruit, vegetables, delicatessen and other grocery items.  They are Australia’s biggest individual retailer of fruit and vegetables and promote 'odd-shaped' fruit called "Imperfect Picks".

Principes (botany): In plant taxonomy, Principes is a botanical name, meaning "the first".  It was used in the Engler system for an order in the "Monocotyledones" and later in the Kubitzki system.  This order included one family only, the "Palmae" (alternate name "Arecaceae").  As the rules for botanical nomenclature provide for the use of such descriptive botanical names above the rank of family it is quite allowed to use this name even today, but in practice most systems prefer the name "Arecales".

Parietales: Parietales is a botanical name of an order of flowering plants.  It is a descriptive botanical name, short for "placentae parietales".  Thus it could be used even today (for a taxon above the rank of family).  The termination -"ales" is only coincidentally identical to that appropriate to the rank of order.

Cultivar group: A cultivar group – represented in a botanical name by the symbol Group or Gp (previously cultivar-group) – is a formal category for cultivated plants that share a defined characteristic according to the "International Code of Nomenclature for Cultivated Plants" ("ICNCP").  "Group" or "Gp" is always written with a capital "G" in a botanical name, or "epithet".  The cultivar group is not italicized in a plant's name.  The "ICNCP" introduced the symbol "Group" in 2004, as a replacement for the lengthy and hyphenated "cultivar-group", which had previously been the category's name since 1995.  The non-standard abbreviation cv.  group is also sometimes encountered.

Syllable stress of Botanical Latin: Syllable stress of botanical names varies with the language spoken by the person using the botanical name.  In English-speaking countries, the Botanical Latin places syllable stress for botanical names derived from ancient Greek and Latin broadly according to two systems, either the Reformed academic pronunciation, or the pronunciation developed initially in some large part by British gardeners, horticulturists, naturalists, and botanists of the 19th century.  The two systems of pronunciation are sometimes referred to as the "classical method" and the "ecclesiastical method".  The two systems differ significantly in pronunciation, but little in syllable stress.

Cupuliferae: Cupuliferae is a botanical name: in this case it is a descriptive botanical name: under the "ICBN" it may only be applied to a taxon at a rank above that of family.

Pomegranate: The pomegranate, botanical name Punica granatum, is a fruit-bearing deciduous shrub or small tree in the family Lythraceae that grows between 5 and tall.

Supporting paragraphs: NAR 2 Pomegranate
Answer: Punica granatum,