Rottboellia

Tripathi, Shailja, Jaiswal, Shubham, Prasad, Dileshwar, Yadav, Rekha, Saxena, Gauri & Agnihotri, Priyanka, 2021, Rottboellia husainii (Poaceae: Andropogoneae), a new grass species from Western Himalaya, India, Phytotaxa 507 (1), pp. 98-104 : 102

Key to Indian species of Rottboellia ; Adapted from Bor (1960)

1. Pedicels of the spikelet fused with joints (internodes) of the rachis .................................................................................................. 2

- Pedicels of the spikelet free from joints (internodes) of the rachis .................................................................................................... 4

2. Racemes 3.0–5.0 cm.................................................................................................................................................. R. goalparensis

- Racemes 5.0– 20 cm ........................................................................................................................................................................... 3

3. Sessile spikelet 3.5–5.0 mm, pedicels 3.0– 3.5 mm long...................................................................................... R. cochinchinensis

- Sessile spikelet 5.5–6.5 mm, pedicels 3.5–4.0 mm long................................................................................................... R. husainii

4. 4–5 continuous slits or interrupted lines visible in lower glume of sessile spikelets ............................................................ R. striata

- Continuous slits or interrupted lines not visible in lower glume of the sessile spikelet....................................................... R. clarkei