516 
Telopea 8(4): 2000 
Subseries Herbertianosae 
Juvenile and adult leaves disjunct, petiolate. Juvenile leaves lanceolate to ovate. Disc 
narrow. Valves thick. 
4. Eucalyptus glomericassis L.A.S. Johnson & K.D. Hill, sp. nov. 
Ab £. cupulare et E. herbertianae distinguitur: folia longa, lucide viridia, alabastra saepe 
verrucosa et calyptra latissima. 
Type: Northern Territory: Deaf Adder Gorge, (13°02'S 132°57'E), C. Dunlop 4344, 
21 Feb 1977 (holo NSW; iso DNA). 
Tree to 10 m tall. Bark smooth throughout, white to grey, brown or pink, shedding in 
large plates or flakes. Adult leaves disjunct, narrow lanceolate to lanceolate, often 
falcate, acuminate, basally tapered, highly glossy, green, concolorous, 120-250 mm 
long, 8-35 mm wide; petioles narrowly flattened or channelled, 12-27 mm long; lateral 
veins prominent, acute, widely spaced, irregular; reticulum complete; intramarginal 
vein distinct, continuous, 0.5-1 mm from margin. Inflorescence simple, axillary; 
umbellasters 7-flowered. Peduncles terete or weakly angular, 6-16 mm long. Pedicels 
terete or angular, 1-5 mm long. Buds ovoid or globose, 7-8 mm long, 5-6 mm diam.; 
calyx calyptrate; shedding shortly before anthesis; corolla calyptrate, free from calyx; 
calyptra hemispherical, smooth or irregularly verrucose, about as long as hypanthium, 
wider than hypanthium; hypanthium smooth or verrucose. Flowers white or cream, 
all stamens fertile, filaments irregularly inflexed in bud, anthers versatile, oblong, 
dehiscing by parallel slits; style base not sunken. Fruits hemispherical or conical, 4-5- 
locular, smooth or verrucose, 7-9 mm long, 7-9 mm diam.; calyptra scar raised at 
60-90' , 0.5-1.0 mm wide, ± stepped inside hypanthium; stemonophore raised, 0.5 mm 
wide; disc raised, ultimately incurved, 1.5-2.5 mm wide; valves broadly triangular, 
exserted, vertically raised, somewhat incurved at tips. Seeds irregularly ovoid to 
pyramidal, shallowly reticulate, semi-glossy, dark brown, 1.5-2 mm long; hilum 
ventral. Chaff dimorphic, linear and cuboid, similar in colour to seeds. (Fig. 6). 
£. glomericassis differs from £. cupularis C. Gardner, £. gregoriensis N.G. Walsh & D.E. 
Albrecht and £. herbertiana Maiden in the long, narrow glossy green leaves and the 
often verrucose buds with a broad hypanthium and an even broader calyptra. 
Distribution: Northern Territory: known only from the sandstone massifs of Kakadu 
and western Arnhem Land (Fig. 7). 
Ecology: restricted to skeletal soil on very rugged sandstone country, often along 
watercourses but not in deep gorges. Almost always near the broken eroded edges of 
the plateau rather than on the relict surface of the actual plateau. 
Conservation status: not considered to be at risk. 
The epithet is from Latin glomus, glomeris a ball and cassis a helmet, referring to the 
shape of the calyptra. 
Selected specimens (from 24 examined): Northern Territory: Mt Brockman plateau Kakadu 
National Park, Boland 2129, 2130, 2131,2132, 2133, 2134 & Wardman, 17 Nov 1984 (CANB, NSW); 
hilltop W of Nabarlek, Arnhem Land, Brooker 5358, 2 Oct 1976 (CANB, NSW); Magela Creek, 
Dunlop 3369, 25 Feb 1973 (DNA, NSW); SW Nablek, Dunlop 4289, 20 Oct 1976 (DNA, NSW); 44 km 
SE Oenpelli, Dunlop 4927, 14 June 1978 (DNA, CANB, NSW); top of Jim Jim Falls, Dunlop 5660, 
30 Jan 1981 (DNA, BRI, CANB, MEL, NSW); Upper Goomadeer River, Dunlop 7232, 1 Nov 1987 
(DNA, BRI, MEL, NSW); Twin Falls, about 200 m back along creek above falls. Hill 903, 16 July 1984 
(NSW); Amhemland Plateau, Lazarides 7546, 6 July 1972 (CANB, BRI, DNA, K, L, NSW, US); Site 
64, 14.5 km NE of Jabira East, Lazarides 9010, 26 May 1980 (CANB, NSW); 1 km E of Mt Gilruth, 
Olsen 2704, 2705, 5 June 1976 (NSW). 
