Aspidistra, Ker-Gawler, 1822

Deng, Chuang-Fa, Wu, Lei, Yu, Xun-Lin, Xu, Yong-Fu & Li, Jia-Xiang, 2021, Aspidistra yuelushanensis (Asparagaceae), a new species from Hunan, China, Phytotaxa 482 (2), pp. 183-190 : 187-188

Key to species of Aspidistra in Hunan Province

1. Leaf blade lorate to lorate-oblanceolate, no wider than 2.5 cm .........................................................................................................2

- Leaf blade oblong-lanceolate to narrowly elliptic, oblanceolate-oblong, narrowly lanceolate, elliptic-lanceolate; leaf blade wider than 2.8 cm .........................................................................................................................................................................................3

2. Perianth urceolate, 4.5–5 × 4–6 mm .............................................................................................................................. A. minutiflora

- Perianth campanulate, tube 1–1.2 × 1.3–1.5 cm ........................................................................................................... A. hainanensis

3. Stamens inserted at middle of perianth tube.......................................................................................................................................4

- Stamens inserted middle-lower or proximally in perianth tube .........................................................................................................5

4. Stamens positioned higher than stigma ................................................................................................................................ A. triloba

- Stamens positioned lower than stigma ......................................................................................................................... A. hezhouensis

5. Stigma 4-lobed at margin ...................................................................................................................................................................6

- Stigma 3-lobed at margin ........................................................................................................................................ A. yuelushanensis

6. Stigma strongly convex, lobes entire, lobes margins not held erect...................................................................................... A. lurida

- Stigma slightly or not convex, lobes emarginate at apex, lobes margins held erect ..........................................................................7

7. Leaf blade oblanceolate-oblong .............................................................................................................................. A.fenghuangensis

- Leaf blade oblong-lanceolate, lanceolate, or subelliptic, not oblanceolate-oblong ...........................................................................8

8. Leaf blade 20–45 × 6–10 cm, margins entire; keels of perianth lobes strongly fleshy, not papillose; pistil 8 mm long. The grooves between 3 to 4 pairs of ridges on the upper surface of stigma are irregular.......................................................................... A. elatior

- Leaf blade 20–35 × 4–8 cm, margins serrulate; keels of perianth lobes not fleshy, papillose; pistil 4 mm long. The grooves between 3 to 4 pairs of ridges on the upper surface of stigma are regular ................................................................................ A. sichuanensis