Revisiting the taxonomy of the names Cephalotaxus mannii and C. griffithii (Taxaceae) Author Bisht, Sunita University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16 C, Dwarka, Author Khuraijam, Jibankumar Singh 0000-0003-4603-0216 Botanic Garden Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow- 226 001, India. jskhuraijam @ yahoo. com; https: // orcid. org / 0000 - 0003 - 4603 - 0216 jskhuraijam@yahoo.com Author Singh, Rita University School of Environment Management, Guru Gobind Singh Indraprastha University, Sector 16 C, Dwarka, text Phytotaxa 2021 2021-05-19 501 1 189 194 http://dx.doi.org/10.11646/phytotaxa.501.1.10 journal article 4427 10.11646/phytotaxa.501.1.10 f1e63d5e-979a-4ed6-b7b0-e4686a61a4b8 1179-3163 5424696 Key to the species of Cephalotaxus 1. Leaves borne at 45º–110º to branchlet axis; leaf 1–16 cm long; seed cone peduncle 2–12 mm long; seeds 1.8–2.8 cm long............ ............................................................................................................................................................................................................2 - Leaves borne at 30º–45º to branchlet axis; leaf 4–9 cm long; seed cone peduncle 1.5–2 cm long; seeds 3.5–4.5 cm long................ ............................................................................................................................................................................................ C. griffithii 2. Bark yellow, reddish grey to greyish brown.......................................................................................................................................3 - Bark light brown to reddish brown or dark reddish brown ................................................................................................................4 3. Bark yellow to greyish brown; leaf apex obtuse, shortly cuspidate; base cordate-truncate.................................................. C. oliveri - Bark reddish grey to greyish brown; leaf apex acuminate or slightly acute or abruptly mucronate; base cuneate or rounded cuneate................................................................................................................................................................................................5 4. Bark thin, exfoliating in small or large flakes and strips, light brown to reddish brown ...................................................................6 - Bark thin, exfoliating in strips, reddish brown ...................................................................................................................................7 5. Leaf apex acuminate or slightly acute; male cones ca. 3 mm in dia ........................................................................... C. harringtonii - Leaf apex abruptly mucronate; male cones ca. 6 mm in dia ................................................................................................... C. nana 6. Leaves borne at 70º–90º to branchlet axis, linear or slightly falcate arranged in to two rows, cuspidate apex ................... C. mannii - Leaves borne at 45–80° to branchlet axis, linear and abruptly narrowing to a mucronate apex.................................. C. hainanensis 7. Leaves 3.5–5 mm wide; pollen cone pedunculate, 3–7 mm long peduncles; arils have numerous indistinct striations...................... ............................................................................................................................................................................................ C. fortunei - Leaves 1.5–3.2 mm wide; pollen cone sessile or subsessile, peduncle 0–2 mm long; arils have longitudinal ridges......................... ............................................................................................................................................................................................... C. alpina