Argostemma

Blasco, Freddie A., Tandang, Danilo N. & Alejandro, Grecebio Jonathan D., 2024, Argostemma mirae (Rubiaceae) a new species from Tago, Surigao del Sur, Mindanao Island, Philippines, Phytotaxa 640 (1), pp. 65-70 : 66

publication ID

https://doi.org/ 10.11646/phytotaxa.640.1.7

DOI

https://doi.org/10.5281/zenodo.13375293

persistent identifier

https://treatment.plazi.org/id/9C6D9E66-FFDC-FFDE-B3B5-7CD06289FC74

treatment provided by

Felipe

scientific name

Argostemma
status

 

Key to the identification of four closely related Argostemma View in CoL species of Mindanao

1. Stem solitary; leaf base cordate or round, margin slightly sinuate; inflorescence> 6 flowered................................. A. arachnosum View in CoL

- Stem branching; leaf base acute, margin entire; inflorescence <6 flowered .....................................................................................2

2. Leaf adaxially glabrous and abaxially pubescent................................................................................................................... A. mirae

- Leaf adaxially and abaxially pubescent..............................................................................................................................................3

3. Stipules broadly ovate, hairy; calyx lobes 4; corolla lobes 4, both surface glabrous....................................................... A. distichum View in CoL

- Stipules oblong, glabrous; calyx lobes 5; corolla lobes 5, both surface pubescent..................................................... A. solaniflorum View in CoL

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