Fig. 1.

Anatropous ovules in Tasmannia piperita (Winteraceae). SEM micrographs. (A) Young ovules in one series on a placenta, showing the nucellar apex and initiation of the inner integument (arrow). (B) Ovule before anthesis, antiraphal side, micropyle curved toward the pollen tube transmitting tissue on the placenta, inner integument lobed (arrow). (C) Ovules at anthesis, in two series, curved away from each other, micropylar area partly covered with secretion from micropyle. (D) Three ovules at anthesis, seen from raphal side, the funiculus surrounded by papillate pollen tube transmitting tissue (arrow). Scale bars: (A, B, C) = 0·1 mm; (D) = 0·3 mm.