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Telopea 9(2): 2001 
Both Mueller (1882, 1884, 1889) and Maiden ( Crit. Revis. Eucalyptus 6, 7) omitted 
£. dutnosa and its varieties from their classification systems. 
Blakely (1934) placed the three species in section Macrautherae subsection Longiores 
series Dumosae, but in three different subseries with other members of section Dumaria 
as we now recognise it (together with some species from section Bisectaria ). 
Pryor and Johnson (1971) placed all three species in section Dumaria series Torquatae, 
based in part on studies of Blakely's Dumosae by Carr and Carr (1969) and Brooker 
(1971). Brooker subsequently suggested further subdivision of this group on the basis 
of differences in seed and androecial structure (1979,1981), placing the three species in 
series Merrickianae (and confusing £. scyphocalyx with £. merrickiae). Subsequent field 
studies have established the distinctive nature of these two species. 
Chippendale (1988) followed Brooker (1979), but recognised E. scyphocalyx and 
E. merrickiae as distinct species, and formally erected series Merrickianae to 
accommodate the three taxa here included in series Leptocalyces together with the quite 
distinct £. merrickiae. Brooker (2000) coined the series name Furfuraceae for the group 
as constituted herein. 
We now recognise the three species as distinct and closely related, but with clinal 
patterns of intergradation and considerable geographic variation that can be 
recognised at intraspecific rank. The series Leptocalyces is limited to only these three 
species, and this account concludes our revisionary studies of this series. 
11. Eucalyptus leptocalyx Blakely, Key Eucalypts: 118 (1934). 
Type: Western Australia: Nine-mile tank from Hopetoun, J.H. Maiden, Nov 1909 (lecto 
NSW; here designated). Cited as: 'W.A. - Nine-Mile Tank from the Hopetoun, J.H. 
Maiden, November, 1909; Grasspatch, C.A. Gardner, No. 2221'. 
Mallee to 6 m tall. Bark smooth, grey, pink, whitish, shedding in ribbons. Adult leaves 
disjunct, lanceolate, falcate, acuminate, glossy, 6.0-12.0 cm long, 1.0-2.0 cm wide; 
petioles terete or ± angular, 1.5-3.0 cm long; lateral veins at c. 30° to midrib, 
moderately spaced, irregular and ± obscure; intramarginal vein c. 1.0-1.5 mm from 
margin. Umbellasters axillary, 7-11-flowered. Peduncles terete to slightly flattened, 
6-11 mm long. Pedicels terete or ± angular, 2-4 nun long. Mature buds ovoid, 7-10 mm 
long, 4-8 mm diam.; calyptra conical, strongly convex, obtuse, smooth to faintly 
ribbed, c. Vi as long as hypanthium. Fruits ovoid to cup-shaped, apically constricted, 
3-4-locular, 6-10 mm long, 5-8 mm in diameter; calyptra scar and stemonophore flat, 
0.5-1.0 mm wide; disc vertically depressed, c. 1.0 mm wide; valves deeply enclosed. 
Seeds ± flattened, angular; semi-glossy grey-black, shallowly and regularly reticulate, 
c. 1.5 mm long; hilum ventral; chaff smaller, angular, glossy red-brown. 
Distinguished within the series by the following: umbellasters 7-11 flowered; buds 
small, ovoid, green; calyptra hemispherical to conical, as wide as hypanthium, not 
ribbed; fruits small, ovoid. 
Two subspecies are recognised. 
11A. Eucalyptus leptocalyx Blakely subsp. leptocalyx 
Mallee to 5 m tall. Adult leaves 6.0-12.0 cm long, 1.0-3.4 cm wide; petioles terete or ± 
angular, 0.9-2.7 cm long. Umbellasters axillary, 7-11-flowered. Peduncles angular, 
apically flattened, 3-11 mm long, to 4 mm wide. Pedicels 2-4 mm long. Mature buds 
8-11 mm long, 6-8 mm diam.; calyptra smooth or faintly ribbed. Fruits 7-11 mm long, 
6-9 mm diam. 
