178 
No. 76. 
Casuarina Luehmanni, R. T. Baker. 
(Natural Order CASUARINACE^E.) 
Botanical description.— Genus, Casuarina (see p. 74, Part XIII). 
Botanical description. —Species, C. Luehmanni, R. T. Baker, in Proc. Linn. Soc. 
N.S.W., xxiv, 608, with a plate (1899). 
A fair-sized tree, attaining a height of 70 to 80 feet, or rarely 100 feet, and a diameter of from 
1 to 1^ feet, rarely 2 feet. 
j Bark. —Furrowed, brittle, and easily removed. 
Branchlets. —Robust, light coloured or glaucous, under a line (f) in diameter, about the same 
thickness as in C. ylauca , Sieb., the internodes ribbed, 6 lines long, glaucous, the nodes 
yellow, sheath-teeth brown or black, short, acute, 9 to 12 in the whorl, mostly 11. 
Floivers. —Dicecious. Male spikes about an inch long, of a light golden-brown colour, clustered 
at the nodes toward the end of the branchlets ; internodes straw-coloured; teeth golden- 
coloured, erect, short, acuminate, constricted at the nodes. 
Fruit cones. —Flattened, about 4 inch in diameter, and consisting almost uniformly of three discs 
or rows of valves, but often irregularly shaped, owing apparently to only a few of the seeds 
being developed. Valves protruding, prominent, sometimes pubescent at the back and 
front, with a well-defined dorsal protuberance extending from the base of the valve to half 
its length and ending in an abrupt angle broadly obtuse or shortly acuminate. Nuts small, 
dark brown, shining, with a short samara. 
Poliowing Bentbam’s classification (B.P1. Yol. vi, p. 194), this species 
belongs to the section Leiopitys—whorls 7-16—merous, and of the species in 
this section it has greatest affinities with C. glauca, Sieb., and C. lepidophloia, 
P.v.M. The branchlets, by their thickness and colour, distinguish it from 
C. stricta, Ait., and other inland species. The fruits are so characteristic and 
constant throughout its extensive range that the species cannot easily be con¬ 
founded with any other.—(R. T. Baker). 
This is one of the trees which Mueller included under C. glauca , Sieb. 
Rev. B. Scortecliini sent it to Mueller from Roma, Queensland, with the 
note : “ I do not know to which Casuarina to refer this specimen. The flat fruits 
put me out.” Mueller labelled the specimen C. glauca. On another occasion he 
wrote : “ Form of C. glauca with flat-tipped thin fruits.” 
