No. 217. 
Hicksbeackia pinnatifolm F.v.M. 
The Monkey Nut. 
(Family PROTEACEyE.) 
Botanical description. Genus, Sicksbeachia F.v.M., in Wing's Southern 
Science Record (Melbourne), February, 1882. 
Botanical description. Species, pinnaiifolia F.v.M., loc. cit. 
Mueller has made his description in his own special way ; and, also, in view 
of the fact that the original is now excessively scarce, it may be desirable to follow 
the author's own words : 
Hicksleachia. Flowers bisexual. Petals at Crst united into a straight tube, soon disconnected, 
symmetrical. Stamens inserted within the dilated summit of the petals. Anthers longer than the 
filament, almost cordate ; their cells somewhat surpassed in length by the connective. Hypogynous 
glands four, severed from each other. Style straight. Stigma nearly ellipsoid. Ovary ovate-conical. 
Ovules two, pendent, oblong, straight. Fruit ovate-roundish, distinctly compressed, indehiscent. Pericarp 
thick, somewhat woody. Cavity ample. Seeds unknown. 
A tree of subtropical eastern Australia, with pinnate leaves, with oblong-lanceolar serrated 
leaflets decurrent along the rachis, with elongated spike-like allsides flowering racemes, obliterated bracts, 
paired but connate stalklets, finally deciduous petals, not very long style, and dry, moderately-compressed 
fruits. 
On this new genus is bestowed the name of the Right Honorable Sir Michael Hicks-Beach, Bart., 
P.O., M.A., D.C.L., in appreciation of the encouragements afforded by him to Science during his tenure of 
office as Her Majesty's Secretary of State for the Colonies. By this dedication his memory will remain 
closely connected also in Australian vegetation with the names of three of his distinguished predecessors, 
in remembrance of whose administration of the British Colonial Empire successively three other genera of 
proteaceous plants became distinguished, 
Hickibiichia differs from Kr,rmadecia in the not diagonally descendent receptacle and not 
unilateral disk ; from Euplassa in the not oblique base of the flowers and not carnulent pericarp ; from 
Roupala in not bi valvular fruit ; from Panopsis and Macadamia in foliage, in almost sessile anthers, in 
never annular disk, and from the last-mentioned genus besides in the pericarp not being separated into a 
coriaceous unilaterally bursting exocarp, and an extremely hard and spherical endocarp, which latter 
characteristic renders Macadamia strictly monotypic. The seeds of the new genus, here defined, may 
offer additional notes for distinction. 
Ilicksbeaclna pinnaiifolia. 
Euplassa IlicksbeacMi (F.v.M.), Coll. 
On the Tweed ; C. Fawcett, Esq. 
The finder observed, that this tree arises copiously after the clearance of the primeval forest only. 
Leaves, so far as seen by me, about '2 feet long; leaflets 18-23 in number, sessile, measuring, with 
exception of the abbreviated lowest, from 5 to 9 inches in length and 1 to 2 inches in width, nearly 
glabrous, of rigid texture, with spreading and anastomosing primary veins and reticular veinleta. 
