Table 1 in Begonia elachista Moonlight & Tebbitt sp. nov., an enigmatic new species and a new section of Begonia (Begoniaceae) from Peru

Table 1. Comparison between Begonia sect. Microtuberosa Moonlight & Tebbitt sect. nov. and closely related sections.
CharacterB. sect. MicrotuberosaB. sect. PereiraB. sect. TrachelocarpusHabitTuberous, stems erectLacking tubers or rhizomes, stems erectRhizomatous (creeping up the side of a tree), lacking an erect stemLeavesAlternateAlternateWhorled at the apex of rhizomeVenationPalmatePinnate, palmate-pinnatePinnateInForescenceBisexualBisexualSeparate male and femaleBracteolesAbsentAbsent or 2 spaced from the base of the ovaryAbsentAndroeciumFilaments fused for more than half their length; 2 or 4 stamens; anthers elliptic, dehiscing through lateral slitsFilaments fused for less than half their length; stamens many; anthers obovate, dehiscing through lateral slitsFilaments entirely fused into a column; stamens many; anthers obovate, dehiscing through lateral poresMale perianth2–4 tepals4 tepals2 tepalsOvaries2–3 locular with 2–3 styles; 1 placental branch per locule3 locular with 3 styles; 2 placental branch per locule3 locular with 3 styles; 1 placental branch per loculeFemale perianth2–3 tepals5 tepals3 tepals