Thank you.Saroj Kasaju
Key to the species
| 1a. | Shoots subtended by a ring of bud scale scars; leaves usually crowded towards tips of branchlets ……………………………………………………………………………….. 2 | 
| b. | Shoots not subtended by a ring of bud scale scars; leaves usually not crowded towards tips of branchlets but evenly spaced ………….............................................................. 11 | 
| 2a. | Panicle branches and perianth segments glabrous or sparsely puberulous …………… 3 | 
| b. | Panicle branchlets and perianth segments tomentose to villous or densely pubescent … 5 | 
| 3a. | Lateral nerves of leaves 14–20 pairs; pedicels 5–10 mm long; fruits globose, 2.5–3 cm in diameter ………………………………………………………………… 2. M. clarkeana | 
| b. | Lateral nerves of leaves 8–15 pairs; pedicels 3–5 mm long; fruits ellipsoid to oblong-ellipsoid, 0.7–1.6 × 0.5–1 cm …………………………………………………. 4 | 
| 4a. | Tertiary nerves and minor nervules of leaves inconspicuous on both surfaces; panicles 3–5 cm long; fruits ca 7 × 5 mm ………………………………………… 10. M. kingii | 
| b. | Tertiary nerves of leaves prominent above, faint to prominent beneath; minor nervules finely reticulate-pitted and prominent on the upper surface, inconspicuous to somewhat prominent beneath; fruits 12–16 × 8–10 mm …………………….. 15. M. odoratissima | 
| 5a. | Leaves mostly cuneate-obovate to oblanceolate; lateral nerves stout, strongly raised beneath; fruits 3.5–4.5 cm in diameter ……………………………………. 6. M. edulis | 
| b. | Leaves mostly oblong-elliptic or narrowly so or sometimes obovate to oblanceolate (M. gamblei); lateral nerves slender, faint to prominent but not strongly raised beneath; fruits (unknown in M. dubia) up to 1.5 (–2.5) cm in diameter ………………………………. 6 | 
| 6a. | Lateral nerves of leaves 14–25 pairs ………………………………………………….. 7 | 
| b. | Lateral nerves of leaves 7–12 pairs ……………………………………………………. 8 | 
| 7a. | Lateral nerves of leaves 14–20 pairs; fruits 0.8–1.2 cm in diameter; fruiting pedicels 5–6 mm long …………………………………………………………………. 5. M. duthiei | 
| b. | Lateral nerves of leaves 18–25 pairs; fruits 2–2.5 cm in diameter; fruiting pedicels 8–12 mm long ……………………………………………………………… 20. M. sharmae | 
| 8a. | Mature leaves tomentellous beneath; minor nervules conspicuously and finely reticulate-areolate on the upper surface …………………………… 22. M. tomentosa | 
| b. | Mature leaves sparsely pubescent to glabrous beneath; minor nervules inconspicuous and obscure on the upper surface ………………………………………………………… 9 | 
| 9a. | Leaves 5–6 cm broad, apiculate at apex; panicles up to 16 cm long ………. 4. M. dubia | 
| b. | Leaves 2–4 cm broad, apiculate to acuminate at apex; panicles 3–10 cm long ……. 10 | 
| 10a. | Fruits 10–15 mm in diameter; fruiting pedicels 5–10 mm long; leaves often turning dark reddish brown on both surfaces on drying ……………………………. 11. M. kurzii | 
| b. | Fruits 8–10 mm in diameter; fruiting pedicels 4–5 mm long; leaves turning pale brown or greenish-brown on both surfaces on drying ………………………… 8. M. gamblei | 
| 11a. | Panicle branchlets and perianth segments tomentose to villous or densely pubescent.. 12 | 
| b. | Panicle branches and perianth segments glabrous or sparsely puberulous ………….. 15 | 
| 12a. | Leaves stiffly coriaceous; lateral nerves faint above; panicles 4–6 mm long ………………………………………………………………………….. 18. M. russellii | 
| b. | Leaves thinly coriaceous; lateral nerves prominent above; panicles 7–28 cm long …. 13 | 
| 13a. | Leaves usually unequal and rounded to obtuse at base, rounded to obtuse at apex; fruits 1–1.6 (–2) cm in diameter ………............................ 14.1. M. macrantha var. macrantha | 
| b. | Leaves equal and cuneate to acute at base, acute, apiculate to acuminate at apex; fruits 0.6–1 (–1.2) cm in diameter ………………………………………………………….. 14 | 
| 14a. | Leaves apiculate to acuminate at apex; lateral nerves 5–9 pairs; panicle branches tomentose to villous …………………………….. 14.2. M. macrantha var. glaucescens | 
| b. | Leaves acute to apiculate at apex; lateral nerves 8–12 pairs; panicle branches sericeous ……………………………………………………………………………. 19. M. sericea | 
| 15a. | Leaves unequal and rounded to obtuse at base ………………………………………… 16 | 
| b. | Leaves more or less equal and cuneate to acute at base ……………………………… 17 | 
| 16a. | Leaves 2.5–5.5 cm broad, glossy above, curved downwards along margins, acute to apiculate at apex; panicles sparsely branched ………………………. 7. M. fruticosa, p.p. | 
| b. | Leaves 5.5–10.5 cm broad, not glossy above, flat along margins, apiculate to acuminate at apex; panicles profusely branched …………………………… 21. M. sikkimensis | 
| 17a. | Leaves predominantly obovate, obovate-oblong to obovate-elliptic …….. 12. M. listeri | 
| b. | Leaves predominantly oblong-elliptic to lanceolate-oblong ………………………. 18 | 
| 18a. | Leaves 14–35 × 4–10 cm; minor nervules conspicuously foveolate-reticulate on the upper surface ……………………………………………………………. 17. M. robusta | 
| b. | Leaves 6–17 × 2–5.5 cm; minor nervules inconspicuous to faint or if prominent then not foveolate-reticulate on the upper surface ……………………………………… 19 | 
| 19a. | Leaves flat along margins ……………………………………………………………. 20 | 
| b. | Leaves curved downwards along margins ……………………………………………. 22 | 
| 20a. | Fruiting tepals reflexed ……………………………………................. 13. M. lohitensis | 
| b. | Fruiting tepals clasping the base of fruits, reflexed at apex only ……………………. 21 | 
| 21a. | Trees, 10–30 m high; leaves thinly to thickly coriaceous, glabrous on the undersurface ……………….. …………………………………………………………. 3. M. declinata | 
| b. | Trees, 4–5 m high; leaves chartaceous, sparsely appressed puberulous on the undersurface ……………………………………………………………… 9. M. hedgei | 
| 22a. | Leaves apiculate to acuminate at apex; fruits ellipsoid, 1.5–2 × 1–1.3 cm ……………………………………………………………………… 16. M. parviflora | 
| b. | Leaves obtuse, acute to apiculate at apex; fruits globose, 0.8–1 cm in diameter …….. 23 | 
| 23a. | Leaves 2–2.5 cm broad, cuneate at base; lateral nerves 10–14 pairs … 1. M. bhaskarii | 
| b. | Leaves 2.5–5.5 cm broad, obtuse to rounded or acute at base; lateral nerves 6–12 pairs …………………………………………………………………… 7. M. fruticosa, p.p. |