Aspidistra zinaidae, Averyanov & Tillich, 2012

Averyanov, Leonid V., Le, Tuan Anh, Nguyen, Khang Sinh, Tillich, Hans-Juergen, Nguyen, Danh Duc, Hoang, Le Tuan Anh, Tran, Hoang Dung, Dat, Pham Thi Thanh & Maisak, Tatiana V., 2019, Aspidistra erosa, A. sarcantha, and A. verruculosa (Asparagaceae), three new species from Vietnam, Phytotaxa 404 (3), pp. 102-110 : 107

Key for the species of Aspidistra zinaidae “group”

1 Pistil drumstick shaped, filaments laterally connivent, therefore basal half of the tube inside completely white, anthers with inconspicuous connective, the pair of pollen sacs 3–4 times longer than wide .......................................................... A. heterocarpa

- Pistil mushroom shaped, filaments laterally separated, the tube wall between them appearing as purple stripes, anthers with fleshy, white connective, the pair of pollen sacs two times longer than wide...............................................................................................2

2 Rhizome creeping or distally somewhat ascending, bearing one or two flowers per shoot, peduncle erect or steeply ascending, flower horizontally; tepal lobes finely erose at the upper third, outside with 5 fine nerves; pistil upcurved ........................ A. erosa

- Rhizome short, erect or suberect, flowers numerous, on more or less horizontal peduncles; tepal lobes smooth at the margin, outside with three nerves; pistil straight.............................................................................................................................................3

3 Peduncles 0.5–1.5 cm long, flower in obliquely erect position, perigone tube 7–9 mm tall and wide, perigone lobes revolute ........ ........................................................................................................................................................................................ A. multiflora

- Peduncles 2–4 cm long, flower in horizontal position, perigone tube 4–5 mm wide, 4–6 mm tall, perigone lobes erect to slightly explanate........................................................................................................................................................................... A. zinaidae