Humboldtia Vahl 1794
Creators: name: Kumar, Ettickal Sukumaran Santhosh
name: Shareef, Sainudeen Muhammed
name: Vikraman, Ramachandrakurup Raj
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Humboldtia

description: Key to the species of Humboldtia Vahl   
1. Stipules appendiculate at base............................................................................................................................................................2  
- Stipules not appendiculate at base......................................................................................................................................................7  
2. Leaflets 4...........................................................................................................................................................................................3  
- Leaflets 6–12......................................................................................................................................................................................4  
 3. Flowers crimson-red; petals up to 8 mm long; pods 1–2 seeded......................................................... H.brunonis var. raktapushapa   
 - Flowers white suffused with pink; petals 1.2–1.5 cm long; Pods 3–4 seeded............................................ H.brunonis var. brunonis   
4. Stipules 5–8 cm long..........................................................................................................................................................................5  
- Stipules 2–3 cm long..........................................................................................................................................................................6  
 5. Flowers with 1–1.2 cm long pedicels............................................................................................................................. H.decurrense   
 - Flowers sessile or rarely up to 0.2 cm long pedicels.................................................................................................... H.ponmudiana   
 6. Inflorescence racemose, pods straight, tomentose............................................................................................................. H.vahliana   
 - Inflorescence corymbose, pods falcate, velvety.......................................................................................................... H. bourdillonii   
7. Flowers crimson, staminal filaments glabrous...................................................................................................................................8  
 - Flowers white, staminal filaments pilose at base............................................................................................................ H.sanjappae   
 8. Leaflets 2......................................................................................................................................................... H.unijuga var. unijuga   
 - Leaflets (4–) 6 (–8)............................................................................................................................................ H.unijuga var. trijuga
description: Published as part of Kumar, Ettickal Sukumaran Santhosh, Shareef, Sainudeen Muhammed & Vikraman, Ramachandrakurup Raj, 2022, Humboldtia ponmudiana (Fabaceae-Detarioideae), a new species from Kerala, India, pp. 115-121 in Phytotaxa 552 (1) on page 120, DOI: 10.11646/phytotaxa.552.1.11, http://zenodo.org/record/6673122