IDENTIFICATION KEY OF A. FIDANII EROĞLU, SP. NOV. IN THE SECTION OPPOSITIFOLIAE

1. Ovary and mericarps scabrid or entirely glabrous ........................................................................................ 2

— Ovary and mericarps hairy ............... A. albiflora M. Pop., A. badachschanica Pachom., A. botschantzevii Pachom., A. brachyantha Boiss., A. congesta Czern., A. czukavinae Pachom. & Karim., A. fedtschenkoi Ovcz. & Czern., A. fragillima, A. friabilis, A. glabrata Czern., A. insolita Pachom., A. karategini Pachom. & Karim., A. kovalevskiana Pachom., A. nuratensis Pachom., A. oppositifolia, A. pauciflora Czern., A. popovii Schischk., A. pugionifolia Czern., A. pulchella (Podlech) Ehrend. & Schönb. -Tem., A. rechingeri, A. scabrella Czern., A. strishovae Pachom. & Karim.

2. Leaves 2-6 times longer than width ............................................................................................................. 3

— Leaves 7-20 times longer than width ........................................................................................................... 8

3. Corolla white, white with outwardly rose color, up to 2.7 mm long ............................................................ 4

— Corolla rose color or reddish, 2.5-5 mm long .............................................................................................. 7

4. Plant hairy or hairy at the base, glabrous on top .......................................................................................... 5

— Plant entirely glabrous or scabrid ................................................................................................................. 6

5. Plant hairy at the base glabrous on top, corolla shortly infundibular, tube somewhat shorter than lobes ......... ....................................................................................................................... A. cilicica Hausskn. ex Ehrend.

— Plant hairy both at base and top, corolla tubular, tube longer than lobes ................ A. fidanii Eroğlu, sp. nov.

6. Corolla white, infundibular, 2-2.7 mm long, ovary elongate-ellipsoid ................... A. podlechii Schönb. -Tem.

— Corolla white, outwardly rose color, subcampanulate, 1.5-1.7 mm long, ovary oblong ellipsoid ..................... ............................................................................................................................ A. rezaiyensis Schiönb. -Tem

7. Plant entirely glabrous, corolla reddish, 2.5-3.5 mm long .......... A. virgata Hub.-Mor. ex Ehrend. & Schönb.-Tem.

— Plant dense velutinose, corolla rose color, 3.5-5 mm long .............................. A. fragillima Boiss. & Hausskn.

8. Corolla 2.5-5.3 mm long, stems lax, bracts lanceolate, broadly elliptic to ovate .............................................. ................................................................................................................... A. oppositifolia Regel & Schmalh.

— Corolla 1.25-2 mm long, stems strict, bracts broadly ovate to conchiform ..................................................... ........................................................................................................... A. rechingeri Ehrend. & Schönb. -Tem.