116 
PLANTS INDIGENOUS TO 
[Butacecs. 
In deep forest ravines at the sources of the Bunyip River, in the Grampians ascending 1 to the subalpine 
summit of Mount William, also in heath ground near Portland Bay and towards the mouth of the Glenelo* 
River. Also known as indigenous to the south-eastern parts of New South Wales ; dispersed over the 
whole of Tasmania and some of the isles of Bass’s Straits. 
A glabrous or spreading-downy generally robust shrub, often several feet high, exceeding occasionally 
the height of 6 feet, sometimes quite diminutive only \ foot high, and diffuse or even prostrate, flowering 
already" in the second year of growth. Branchlets anguilar, often tinged with red, sometimes slightly warted. 
Petioles from § line to § inch long. Rachis varying, according* to the number of leaflets, in length from a 
very few lines to 1|- inch, with joints §-4 lines long. Leaflets ^-1 inch long, f-4 lines broad, hardly paler 
beneath, acute, not rarely a little recurved at the margin, shining, one-nerved, generally coriaceous, but 
when the plant grows in damp shaded valleys chartaceous, the glands then very pellucid, and in heath 
ground on exposed places sometimes very narrow, assuming a linear-subulate shape. Peduncles 1 inch long 
or shorter as well as the pedicels brown-red, angular, provided at the summit with two semilanceolate- 
subulate bracts, which are about 1 line long. Pedicels thickened upwards, provided at the base of the upper 
joint with two bracteoles similar to but often much smaller than the bracts, their lower joint, which in many 
instances is undeveloped, forming a secondary peduncle. Flowers sweet-scented. Sepals §-l rarely 1| line 
long, appressed as in most species. Petals slightly imbricate in aestivation, with generally broad base, sessile, 
blunt or acute or even short-acuminate, 2J-4 rarely only r 1J lines long, lanceolate- or broad-ovate or exactly 
lanceolate, seldom white, finally deciduous. Sepaline stamens scarcely" longer than the petaline ones. Fila¬ 
ments 1J-2J rarely only f lines long, linear-filiform, often densely" sometimes scantily hairy; very seldom 
quite devoid of hair, but always in their whole length dispersed with glands. Anthers J-J hue long, 
sulphur-colored, glabrous. Pollen-grains smooth, ovate. Ovary py-ramidate-ovate, tapering into a very short 
and stout style, or globose-ovate and suddenly terminated by an often longer and more slender filiform style, 
which is occasionally hairy or undeveloped, never exceeding the length of § line. Stigma truncate or 
depressed capitate, hardly or distinctly broader than the style. Disk short, entire, convex. Carpels about 
1J-2J lines long, cuneate- or quadrate-ovate, rather compressed, sometimes minutely" rostrate. Endocarp 
shining, nerveless, livid. Placental membrane navicular-lanceolate. Seeds hardly 1 line long, oblique-ovate, 
often two contained in each carpel. Embiyo somewhat shorter than the albumen, according to Fitch’s figure 
in Flora Tasm. sometimes less than half as long. 
B. citriodora (Gunn, in J. Hook. FI. Tasm. i. 68) seems, notwithstanding its strong almost lemon-like 
scent, to belong, as far as can be ascertained from diagnosis, to this species. 
If only" the end forms of this polymorphous species are noticed, it will be deemed highly improbable 
that they should not form distinct species; y r et the review of a long series of specimens on this occasion 
rendered the attempt vain to segregate them under specific distinctions. The ordinary variety, alike to the 
Port Jackson plant, occurs on the Bunyip and Genoa River. Forms, exactly resembling* the B. pilosa, are 
to be found in the Grampians, particularly on the higher parts of Mount William. A variety with small 
narrow crowded almost subulate leaflets occurs on the heaths near Portland and at the entrance of the 
Glenelg River. Trifoliolate leaves of this species, interspersed with the pinnate ones, are formed merely by 
the want oi more than one pair of lateral leaflets, whilst pinnate bijugate leaves of B. poly-galifolia are formed 
by the suppression of certain leaflets and secondary petioles of a normally- biternate leaf. The anthers of 
B. Fraseri are according to the figure above quoted occasionally appendiculate. Boronia algida (F. M. in 
Transact. Phil. Soc. Viet. i. 100), occurring on the bushy declivities of Mount La Trobe, Mount Hotham, 
Mount Cosciusko, and other high ranges, may be only an alpine state of B. pinnata; its fruit is unknown; 
the leaflets are very- small, obovate- or obcordate-cuneate, the flowers provided with but very short pedicels, 
and the filaments are hairless. B. microphylla (Sieber, in Sprengel cur. post. 148), from the Blue Mountains, 
stands m close relationship to B. algida, from which it only differs in leaves with several pair of leaflets, in 
hairy filaments, and possibly in fruit. 
