Lectotypification of Chloris montana (Poaceae: Chloridoideae) and taxonomic notes on a few species from India Author Landge, Shahid Nawaz The Blatter Herbarium (BLAT), St. Xavier’s College (Autonomous) Mumbai 400001. Author Shinde, Rajendra D. St. Xavier’s College (Autonomous) Mumbai 400001. text Phytotaxa 2022 2022-06-16 550 3 243 252 journal article 77016 10.11646/phytotaxa.550.3.4 ec4510cc-761d-439e-9066-e3ad1c044aff 1179-3163 6650995 Key to the species of Chloris occurring in India 1. Spikes indefinite in number (usually 50 or more) closely appressed along the central axis (rhachis) forming a long inflorescence 15–30 × 4.0–7.0 cm long.......................................................................................................................................... C. roxburghiana 1. Spikes definite in number (less than 15) originating from the common point or sometimes with an inconspicuous rhachis ............. ............................................................................................................................................................................................................2 2. Lemma with a row of distinct glands or tubercles on each side of the mid nerve ............................................................................... ............................................................................................................................ C. prieurii (occurs in Rajasthan , North West India ) 2. Lemma eglandular ..............................................................................................................................................................................3 3. Fertile florets (hermaphrodite) 2–8 ....................................................................................................................................................4 3. Fertile florets (hermaphrodite) only 1, very rarely 2 (second floret may be staminate) then mid nerve of the lemma glabrous (except C. wightiana ) ......................................................................................................................................................................................5 4. Fertile lemma distinctly long awned; fertile florets 2–3 in the spikelet.................................... C. bournei (endemic to South India ) 4. Lemma muticous, acute or mucronate but never with a considerably long awned; fertile florets 4–8 in the spikelet ........................ .................................................................................................................. C. flagellifera ( North West India in Rajasthan & Gujarat ) 5. Whole plant pustulose-pilose, spikes short, hardly ca. 2.5 cm long but considerably broad; lowest lemma distinctly long bearded on the mid nerve (keel)........................................................................................................... C. wightiana (endemic to South India ) 5. Only the peduncle below the inflorescence is villous, if not then the entire plant glabrous, spikes ca. 11.5 cm long broad or narrow; lowest lemma glabrous on the keel ....................................................................................................................................................6 6. Sterile florets above the fertile floret solitary (2 florets in C. virgata ); spikelets 2-awned................................................................7 6. Sterile florets above the fertile floret two to four; spikelets 2–6-awned ............................................................................................9 7. Sterile floret not developed, reduced to an awn; fertile lemma glabrous; apices of leaf blades at least somewhat obtuse ................. ....................................................................................................................................................................................... C. pycnothrix 7. Sterile florets developed not reduced to an awn; fertile lemma pubescent on upper margin; apices of leaf blades distinctly acute... ............................................................................................................................................................................................................8 8. Perennial, elaborately stoloniferous; spikelets with 3–4 florets, awn not exceeding 3.0 mm; upper margin of fertile lemma usually with a tuft of hairs not exceeding 1.5 mm ; second floret staminate and subsequent barren ............................................. C. gayana * 8. Annual, tufted usually not stoloniferous; spikelets with 2–3 florets, awn clearly exceeding 5.0 mm; upper margin of fertile lemma with a conspicuous tuft of hairs almost ca. 3.5 mm long; second and subsequent florets barren ....................................... C. virgata 9. Peduncle pubescent or villous below the inflorescence to some distance; spikelets 4–5 (–6)-awned .............................................10 9. Peduncle completely glabrous; spikelets 3–5-awned .......................................................................................................................11 10. Spikes narrow, closely associated (almost appressed); sterile florets usually glabrous on the upper margins (rarely only somewhat pubescent) and not usually spherically inflated............................................................................................................ C. montana ** 10. Spikes broad, widely spreading; sterile florets consistently with apical marginal pubescence and always remarkably gibbous/ spherically inflated ................................................................................................................................................... C. quinquesetica 11. Annual; florets spherically inflated; spikelets usually 3-awned turning blackish on maturity (except glumes).................................. .......................................................................................................................................................... C. barbata (auctt. non. L. 1759) 11. Perennial; sterile florets narrow, not spherically inflated, usually 4–5-awned turning brown at maturity ...................... C. montana *Sometimes non-stoloniferous and non-caespitose. **Sometimes sterile lemmas are somewhat gibbous with a dense apical marginal pubescence.