Endiandra R. BR.

Munzinger, Jérôme, McPHERSON, Gordon & Bruy, David, 2024, Novitates neocaledonicae XV: Two new species of Endiandra R. Br. (Lauraceae) from New Caledonia, Adansonia (3) 46 (3), pp. 19-28 : 20-21

PROVISIONAL KEY TO NEW CALEDONIAN Endiandra R. BR.

1. Both sides of leaf with pronounced raised honeycomb-like fine reticulum of veins; leaf blades glabrous at maturity; flowers 4-5 mm long .............................................................................................. E. polyneura Schltr.

— Leaf surfaces with open, somewhat irregular venation; leaf blades glabrous or pubescent at maturity; flowers up to 3 mm long .............................................................................................................................................. 2

2. Leaf blades 4-5(-6) cm long, usually roundish; petiole up to 6 mm long; mature fruit c. 2.7 cm long; northeast of main island ....................................................................................................... E. poueboensis Guillaumin

— Leaf blades, at least the larger ones, more than 6 cm long, petioles, at least the longer ones, more than 8 mm long; fruit more than 3 cm long; variously distributed ................................................................................. 3

3. Petioles up to 1.5 mm wide near midpoint; blades chartaceous; Île Art ..... E. artensis Munzinger & McPherson

— Petioles 2-3.5(-4.5) mm wide near midpoint; blades subcoriaceous; main island ……….. 4

4. Young mature blades evenly pubescent abaxially with minute appressed hairs, this indument usually persistent in older leaves at least in sheltered places ..................................................................................................... 5

— Young mature blades glabrous or very nearly so ........................................................................................... 9

5. Abaxial leaf surface often copper- or silver-coloured because of dense, persistent indument obscuring the surface; fruit to 3.8 cm .............................................................................................................. E. sebertii Guillaumin

— Abaxial leaf surface usually glaucous, the indument typically not obscuring the surface, either eventually falling or largely persistent; fruit c. 5 cm ................................................................................................................ 6

6. Ovary densely pubescent, as is the fruit in sheltered places; petioles typically less than 2 cm long, widespread on non ultramafic substrates ................................................ E. trichogyna Munzinger & McPherson , sp. nov.

— Ovary and fruit glabrous (or very nearly so); petioles various (if less than 2 cm, then restricted to Mt. Humboldt ultramafics) ................................................................................................................................................. 7

7. Leaf blades typically ovate, indument persistent, abaxial surface glaucous; widespread on southern ultramafic substrates ................................................................................................................... E. baillonii Guillaumin

— Leaf blades typically elliptical or narrowly elliptical, the abaxial indument eventually falling in exposed areas, abaxial surface not glaucous; Mt. Humboldt or Roches de la Ouaième ........................................................ 8

8. Leaf blades elliptical, petioles 0.7-1.5 cm; restricted to Mt. Humboldt ........................................................... ........................................................................................ E. humboldtiana Munzinger & McPherson , sp. nov.

— Leaf blades narrowly elliptical, petioles 2.0-3.0 cm; restricted to Roches de la Ouaième ....... E. sp. (ouaième)

9. Adaxial surface of midrib and often also the rest of the lamina pimpled due to raised oil glands (most evident in dark-drying areas, using lens) ................................................................................................................ 10

— Adaxial surface, including the midrib, smooth, the oil glands barely evident ............................................. 11

10. Blades (7-) 10-16 cm long; Koniambo c. 700 m ................................................................... E. sp. (koniambo)

— Blades 4-10(-11) cm long; widespread but not known from Koniambo .......................................................... .............................................................................. E. lecardii Guillaumin / E. neocaledonica Kosterm. complex

11. Blades 17.5-27.0 cm long .......................................................................................................... E. sp. (taom)

— Blades (6.6-)8-9(-9.6) cm long ............................................................................................. E. sp. (fridoline)