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Table 9. (this page and the following) Outer stomatal ledge aperture length (OSLL), width (OSLW)and length-width ratio (OSLL:OSLW) on lower leaf surfaces of various taxa in the Rothmanniacomplex.Species OSLL OSLW OSLL:OSLWMALESIARothmannia anisophylloides 7.0–(10.7)–14.9 1.2–(2.0)–2.9 3.26–(5.66)–10.28Rothmannia forsteniana 6.6–(10.5)–14.8 1.1–(1.9)–3.2 3.13–(6.05)–11.60Rothmannia graciliflora 5.1–(7.1)–10.1 1.1–(1.6)–2.4 3.11–(4.57)–6.25Rothmannia grandis 3.4–(7.2)–11.6 1.3–(2.1)–2.4 1.41–(3.57)–7.76Rothmannia kassamensis 10.2–(12.8)–16.1 1.2–(2.1)–3.0 3.77–(6.26)–10.44Rothmannia lagunensis 6.2–(8.4)–12.3 1.4–(2.0)–3.1 2.90–(4.29)–6.52Rothmannia leytensis 4.4–(8.0)–11.8 1.3–(1.9)–2.7 2.28–(4.36)–6.67Rothmannia macromera 8.8–(11.3)–16.9 1.0–(1.8)–3.0 3.45–(7.06)–15.25Rothmannia merrillii 8.1–(11.5)–15.5 2.0–(2.9)–4.5 2.23–(4.11)–5.69Rothmannia negrosensis *7.7–(11.4)–15.4 *2.0–(2.9)–4.0 *1.92–(4.22)–7.89Rothmannia nigrescens 6.2–(9.2)–12.2 1.2–(1.8)–2.7 2.38–(5.45)–7.60Rothmannia papuana 8.3–(10.0)–11.3 1.0–(1.4)–2.6 3.54–(7.63)–11.88Rothmannia pseudoternifolia 4.0–(10.6)–18.4 1.0–(2.3)–5.8 1.56–(5.20)–13.34var. pseudoternifoliaRothmannia pseudoternifolia 3.8–(8.7)–13.6 1.2–(1.9)–3.0 2.12–(4.75)–8.02var. hispidaRothmannia ridsdalei 5.3–(8.4)–12.2 1.3–(2.0)–3.2 2.43–(4.38)–8.14Rothmannia schoemannii 4.4–(8.5)–11.2 0.7–(1.7)–2.6 3.29–(5.38)–10.25Rothmannia sundaensis 5.9–(9.1)–13.8 1.0–(1.8)–2.9 2.15–(5.55)–10.25Rothmannia uvarioides 7.4–(9.0)–12.6 2.7–(3.4)–4.5 1.63–(2.70)–4.01Rothmannia sp. indet 1 ? ? ?Rothmannia sp. indet 2 7.7–(10.9)–13.5 3.3–(4.7)–6.5 1.43–(2.35)–3.41OUTSIDE MALESIAAfrica (corolla lobes contorted to theright)Rothmannia annae 6.1–(8.6)–12.1 1.7–(3.6)–5.1 1.63–(2.61)–5.39Rothmannia capensis 5.4–(7.40)–9.8 1.4–(3.6)–6.0 1.05–(2.24)–4.85Rothmannia fischeri ssp. fischeri 9.1–(10.6)–13.5 4.0–(6.3)–8.2 1.27–(1.72)–2.42Rothmannia fischeri ssp. moramballae 7.5–(10.3)–12.8 2.7–(4.4)–6.8 1.58–(2.42)–3.19Rothmannia fischeri ssp. verdcourtii 10.6–(12.4)–14.1 4.8–(6.4)–7.8 1.50–(1.97)–2.41Rothmannia hispida 2.7–(4.3)–5.9 1.0–(1.5)–2.6 1.54–(3.11)–4.68Rothmannia ravae 7.7–(9.9)–12.5 4.6–(5.9)–7.1 1.34–(1.69)–2.10Rothmannia urcelliformis 5.0–(6.6)–9.7 1.8–(2.6)–3.6 1.73–(2.62)–5.04Africa (corolla lobes contorted to theleft)Rothmannia engleriana ? ? ?Rothmannia longiflora 10.0–(12.5)–14.3 4.1–(6.4)–10.5 1.26–(1.99)–2.52Rothmannia lujae 4.5–(7.1)–9.2 1.7–(2.7)–4.2 1.06–(2.77)–4.47Rothmannia manganjae 10.6–(12.4)–14.9 5.4–(6.6)–7.6 1.45–(1.89)–2.28Rothmannia whitfieldii 10.7–(13.4)–15.6 5.9–(7.2)–8.4 1.34–(1.88–2.34162
Table 9, continued.Species OSLL OSLW OSLL:OSLWAsiaRothmannia attopevensis 11.1–(13.2)–16.8 1.5–(2.6)–3.4 3.40–(5.44)–8.60Rothmannia eucodon 6.2–(8.7)–13.7 1.0–(1.5)–2.4 3.76–(6.63)–13.62Rothmannia kampucheana 6.8–(8.2)–10.8 2.0–(3.9)–5.4 1.50–(2.18)–3.84Rothmannia pulcherrima 5.1–(7.3)–9.9 0.7–(1.2)–1.7 3.26–(6.40)–12.00Rothmannia sootepensis 3.6–(8.2)–12.7 1.3–(2.8)–4.5 1.36–(3.30)–8.50Rothmannia venalis 7.6–(9.9)–12.5 3.6–(4.5)–5.5 1.38–(2.21)–3.19Rothmannia vidalii ? ? ?Rothmannia vietnamensis 4.0–(6.7)–9.6 1.4–(2.2)–3.5 1.89–(3.20)–5.23Rothmannia wittii 6.4–(7.8)–9.2 2.0–(3.2)–7.8 0.82–(2.69)–3.65ABERRANT AND RELATED TAXARothmannia macrophylla 10.5–(12.1)–13.7 4.1–(5.5)–6.9 1.71–(2.26)–3.05Rothmannia globosa 4.7–(8.8)–12.9 1.8–(3.2)–4.8 1.75–(2.91)–4.57Kochummenia parviflora ? ? ?Kochummenia stenopetala 6.7–(9.6)–12.2 1.3–(2.3)–3.8 2.50–(4.40)–7.00Notes: ? = data unavailable; italicized data indicating measurements from basal portion of the leaf lamina; data with asterisk (*)indicating measurements from apical portion of the leaf lamina; values in parentheses are average values.guard cells only in three species, i.e., R. graciliflora, R. lagunensis and R. sp. indet 2.Most African species have their outer stomatal ledge at the same level as the guardcells, e.g., R. whitfieldii (Fig. 35A), R. annae (Fig. 35B) and R. lujae (Fig. 35C), andonly rarely is the ledge raised, i.e., in R. fischeri ssp. verdcourtii (Fig. 35E) and R.fischeri ssp. fischeri (Fig. 35L), R. engleriana and R. manganjae (Fig. 35H). InKochummenia stenopetala (Fig. 35D) and R. globosa (Fig. 35N), the outer stomatalledge is at the same level as the guard cells (see Table 10 for details).The outer stomatal ledge coverage can be very variable in the Malesianspecies of Rothmannia, i.e., varying from intermediate (coverage ¼–½ of the outerstomatal ledge aperture) to wide (coverage > ½ of the outer stomatal ledge aperture)in e.g., R. grandis and R. merrillii (Fig. 35F); but consistently wide in others, e.g., R.graciliflora, R. lagunensis, R. negrosensis (Fig. 35I) and R. ridsdalei (Fig. 35M).Intermediate ledge coverage is found in e.g., R. schoemannii (Fig. 35K) and R.sundaensis. In the mainland Asian species, e.g., R. kampucheana, R. pulcherrima163
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Page 49: extent very variable in Rothmannia.

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