Erythroxylum, Browne, 1756

Komada, Natsuki, Tagane, Shuichiro, Ngoc, Nguyen Van, Binh, Hoang Thi, Son, Hoang Thanh, Toyama, Hironori, Nagamasu, Hidetoshi, Naiki, Akiyo & Yahara, Tetsukazu, 2018, Erythroxylum calyptratum (Erythroxylaceae), a new species from Mt. Fansipan, northern Vietnam, Phytotaxa 347 (4), pp. 279-284 : 283

publication ID

https://doi.org/ 10.11646/phytotaxa.347.4.4

persistent identifier

https://treatment.plazi.org/id/03FD87C4-FF91-743F-CFCC-91D0ED81FE5A

treatment provided by

Felipe

scientific name

Erythroxylum
status

 

Key to the species of Erythroxylum View in CoL in Indochina

1a. Leaves sessile or petioles to 1 mm long ............................................................................................................................... E. gracile View in CoL

1b. Leaves distinctly petiolate, petioles longer than 2 mm ......................................................................................................................2

2a. Style 3, united at base.........................................................................................................................................................................3

2b. Style 3, entirely free to the base.........................................................................................................................................................4

3a. Leaf blade thickly chartaceous, elliptic to ovate, 4.5–6 cm long; lateral veins 10–13 pairs........................................... E. cuneatum View in CoL

3b. Leaf blade coriaceous, elliptic-oblong to oblanceolate, longer than 6 cm; lateral veins 9–11 pairs....................... E. cambodianum View in CoL

4a. Petals less than 2 mm ................................................................................................................................................... E. annamense View in CoL

4b. Petals longer than 3 mm .....................................................................................................................................................................5

5a. Petiole longer than 3 mm; petal pinkish; petal appendage short, less than 1/6 length of petals.......................................... E. sinense View in CoL

5b. Petiole 2–3 mm long; petal white; petal appendage 1/3–1/2 length of petals ............................................................. E. calyptratum View in CoL

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