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Table 4. (this page and the following) Epidermal cell shape on lower leaf surfaces of various taxa inthe Rothmannia complex.SpeciesEpidermal cell shapeMALESIARothmannia anisophylloidesirregularRothmannia forstenianairregularRothmannia graciliflorairregularRothmannia grandisirregularRothmannia kassamensisirregularRothmannia lagunensisirregularRothmannia leytensisirregularRothmannia macromerairregularRothmannia merrilliiirregularRothmannia negrosensis*irregularRothmannia nigrescensirregularRothmannia papuanapolygonal to irregularRothmannia pseudoternifolia var. pseudoternifoliairregularRothmannia pseudoternifolia var. hispidairregularRothmannia ridsdaleiirregularRothmannia schoemanniiirregularRothmannia sundaensisirregularRothmannia sp. indet 1 ?Rothmannia sp. indet 2 ?OUTSIDE MALESIAAfrica (corolla lobes contorted to the right)Rothmannia annaeRothmannia capensisRothmannia fischeri ssp. fischeriRothmannia fischeri ssp. moramballaeRothmannia fischeri ssp. verdcourtiiRothmannia hispidaRothmannia ravaeRothmannia urcelliformisAfrica (corolla lobes contorted to the left)Rothmannia englerianaRothmannia longifloraRothmannia lujaeRothmannia manganjaeRothmannia whitfieldiiirregularirregularirregularirregularpolygonal to irregularpolygonal to irregularirregularirregularpolygonal to irregularirregularirregularpolygonal to irregularpolygonal to irregularAsiaRothmannia attopevensisirregularRothmannia eucodonirregularRothmannia kampucheanairregularRothmannia pulcherrimairregularRothmannia sootepensisirregularRothmannia venalisirregularRothmannia vidalii ?144
Table 4, continued.SpeciesEpidermal cell shapeRothmannia vietnamensisRothmannia wittiiirregularirregularABERRANT AND RELATED TAXARothmannia macrophyllairregularRothmannia globosapolygonalKochummenia parviflora ?Kochummenia stenopetalairregularNotes: ? = data unavailable; italicized data indicating measurements from basal portion of the leaf lamina; data with asterisk (*)indicating measurements from apical portion.Thus, epidermal cell shape does not seem to be especially distinctive at boththe species and generic levels.5.3.2 Anticlinal wall outlinesThe classification of anticlinal wall outlines of the epidermal cells observedamong taxa in the Rothmannia complex was modified from Stace (1965) andWilkinson (1979) (see Appendix 9).In some cases, anticlinal wall outlines may be somewhat obscured by stronglydemarcated striations on the lamina, such as in R. anisophylloides, R. engleriana(Fig. 34A), R. forsteniana, R. kampucheana, R. kassamensis, R. macromera, R.uvarioides and R. whitfieldii. In such cases, the wall outlines could only bedetermined from examining many slide preparations.Anticlinal wall outlines of epidermal cells can be categorized into threegeneral types (see Appendix 9). Type A has straight to gently curved sections of thecell outline, with basically low-frequency, low-amplitude sinuations corresponding toTypes 1 and 2 of the system of Stace (1965) and Wilkinson (1979). Type B haspronounced sinuations of higher frequency and low to medium amplitudes, includingTypes 3, 4 and 5 of Stace and Wilkinson. Type C (Stace’s and Wilkinson’s Type 6)145
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