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. 2022 Aug 22;205:147–189. doi: 10.3897/phytokeys.205.75379

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Colin E. Hughes, Jens J. Ringelberg, Gwilym P. Lewis, Santiago A. Catalano

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Figure 2. — Variation in armature of Prosopis, Strombocarpa, Neltuma and XerocladiaANeltumadenudans (nodal spines on a zig-zag stem) BN.humilis (paired striate spine-tipped branches) CProsopiscineraria (scattered internodal prickles) DNeltumasericantha (spine-tipped stems) EStrombocarpaburkartii (stipular spines) FNeltumaargentina (single nodal axillary spine) GN.kuntzei (spinescent shoots) HStrombocarpaferox (stipular spines) IS.strombulifera (stipular spines) JNeltumaelata (variation in paired nodal spines on one specimen) KN.alba (paired nodal spines) LN.velutina (paired nodal spines) MProsopisfarcta (scattered internodal prickles) NNeltumaruscifolia (single nodal axillary spine) OXerocladiaviridiramis (recurved, deflexed stipular spines) (5 cm scale bar). All specimens at K A drawn from Seijo 1489 BTweedie s.n. CWillcox 299 D MERL 8792 EAcosta & Rosas 748 FGuaglianone et al. 1762 GNee & Coimbra 35556 HAtahuachi et al. MA1147 IHunziker 2036 JLegname & Cuezzo 10396 (large and small spines from same specimen) KHughes & Forrest 2312 LHarding & Balsinhas 140 MGuest et al. 17463 NWood & Mamani 14063 OKolberg & Tholkes HK2493. Drawn by Andrew Brown, July 2021.