Hill and Johnson, Eucalyptus (Myrtaceae) 
507 
Fig. 1. Distribution of E. biterranea, E. orophylla, E. pellita, E. wetarensis, E. urophylla. 
2. Eucalyptus macta L.A.S. Johnson & K.D. Hill, sp. nov. 
Ab E. resinifera distinguitur: calyptra diametro majore, brevior, plus rostrata; fructus major, 
latior et relative brevior; discus descendens, valvae robustiores et prominenter exsertae. 
Type: Queensland: Wild River, 2.5 km east of Herberton on Atherton road. Hill 1115, 
Johnson & Blaxell, 15 Aug 1984 (holo NSW; iso BRI, CANB, DNA). 
Tree to 25 m tall. Bark persistent to smallest branches, long fibrous-flaky, 
reddish-brown underneath. Juvenile leaves disjunct, ovate, acuminate, petiolate. 
Adult leaves lanceolate, dorsiventral, hypostomatic except for a few scattered stomata 
adjacent to the adaxial midrib, disjunct, 70-180 mm long, 12-35 mm wide; petiole 
15-25 mm long; lateral veins closely-spaced, regular, at 45°-60°to midrib, closely and 
regularly reticulate between; intramarginal vein distinct, 0.5-2 mm from margin. 
Inflorescence simple, axillary; umbellasters (7-)ll-flowered. Peduncles flattened, 5-25 mm 
long, to 4 mm wide at apex. Pedicels terete or angular, 3-12 mm long. Mature buds 
ovoid to fusiform, 14-21 mm long, 6-8 mm diam.; calyptra 2-3 times longer than 
hypanthium, usually broadly rostrate for about V 2 length. Stamens all fertile, 
filaments erect in bud, anthers oblong, dorsifixed, versatile, dehiscing by parallel slits. 
Fruits cup-shaped, 3-4-locular, 7-10 mm long, 7-10 mm diam.; calyptra scar and 
stemonophore broad, steeply raised, 1-1.5 mm wide; disc depressed or level and 
incurved, 1-2 mm wide; valves vertically exserted, triangular, apiculate. 
E. macta is distinguished from E. resinifera Sm. by the broader, shorter, more rostrate 
calyptra, and the larger, broader and relatively shorter fruit with a descending disc 
and heavier, more prominently exserted valves (Table 2). 
