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. 2014 Apr 2;113(7):1139–1154. doi: 10.1093/aob/mcu044

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© The Author 2014. Published by Oxford University Press on behalf of the Annals of Botany Company. All rights reserved. For Permissions, please email: journals.permissions@oup.com

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Fig. 2. — Transverse sections of mature proximal parts of representative species of the perianth-bearing Piperales: (A) Aristolochia gigantea (climber); (B) A. leuconeura (climber); (C) A. grandiflora (climber); (D) A. ovalifolia (climber); (E) A. baetica (climber); (F) A. clematitis (herb); (G) A. triactina (climber); (H) A. tomentosa (climber); (I) A. serpentaria (herb); as well as (J) Thottea siliquosa (shrub); (K) Hydnora visseri (underground parasite); (L) H. longicollis (underground parasite); (M) Lactoris fernandeziana (shrub); (N) Asarum cardiophyllum (herb); and (O) Saruma henryi (herb). Sections A, C–J and L–O are stained with carmine-green, section B is stained with phloroglucinol-HCl (lignified tissues in red) and section K is stained with Astra blue-Safranin (non-lignified tissues in blue, lignified tissues in dark red); c, cork; f, fibre ring; p, pith; r, wood ray. Scale bars = 1000 μm.