%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Hopkins, H. C. F.
%A Pillon, Yohan
%T Virotia azurea (Proteaceae : Macadamieae), a striking new species endemic to New Caledonia and notes on V. francii and V. leptophylla
%D 2020
%L fdi:010079124
%G ENG
%J Candollea
%@ 0373-2967
%K PROTEACEAE ; Virotia ; New Caledonia ; New Species ; Taxonomy ; Manganese ; Serpentine flora
%K NOUVELLE CALEDONIE
%M ISI:000542253800009
%N 1
%P 89-98
%R 10.15553/c2020v751a9
%U https://www.documentation.ird.fr/hor/fdi:010079124
%> https://www.documentation.ird.fr/intranet/publi/2020/07/010079124.pdf
%V 75
%W Horizon (IRD)
%X Virotia azurea H.C. Hopkins & Pillon (Proteaceae), the seventh species in the endemic genus Virotia L.A.S. Johnson & B.G. Briggs from New Caledonia is described and illustrated. A distribution map and preliminary conservation assessment are provided. This new species occurs principally on non-ultramafic substrates in a restricted area of central Grande Terre. It has relatively long narrow leaves, often with distally undulate-sinuate or bluntly toothed margins and a pointed apex, plus blue flowers and laterally flattened, markedly beaked fruits containing seeds with blue to mauve cotyledons. Its characters are compared with those of other species of Virotia and a key to species is provided. A handful of specimens previously identified as Virotia francii (Guillaumin) P.H. Weston &A.R. Mast are determinated mostly as Virotia leptophylla (Guillaumin) L.A.S. Johnson & B.G. Briggs and other species; the former is now confined to ultramafic substrates in southern Grande Terre and the latter is more widespread, principally occurring on non-ultramafic substrates though occasionally found on ultramafic ones in the south of the island as well.
%$ 076