Meliosma lanceolata var. lanceolata
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In the lowland parts of its area var. lanceolata is nearly always very constant in the main characters. Mainly at higher elevations, however, forms occur which deviate considerably, often to such an extent that it is very difficult to separate them from less typical forms of the otherwise well distinct M. pinnata subsp. ferruginea and subsp. ridleyi; in a few cases, especially when the material is incomplete, this can only be done by a specialist who is thoroughly acquainted with habitus and variability of both species.
For instance, a form with erect, unusually short panicles (sometimes only 15 cm long) and other deviating characters may be met with. It occurs mainly in the montane zone; transitional forms are found lower, and these show a more or less gradual fading of typical lanceolata characters. Specimens of this mountain form have been described from Java by KOORDERS & VALETON, l.c., as M. nervosa. In my opinion this species should be reduced to the rank of a form only; see below.
For instance, a form with erect, unusually short panicles (sometimes only 15 cm long) and other deviating characters may be met with. It occurs mainly in the montane zone; transitional forms are found lower, and these show a more or less gradual fading of typical lanceolata characters. Specimens of this mountain form have been described from Java by KOORDERS & VALETON, l.c., as M. nervosa. In my opinion this species should be reduced to the rank of a form only; see below.