Zu'i-ia.] XXlt. RUTACE.E. 1S5 



which F. V. Mueller proposes to unite it. It differs chiefly in the narrow-linear 

 leaflets, 1 to 2in. long, the margins revolute and whitish underneath, and in the 

 very small flowers, with the petals almost strictly valvate. Cocci glabrous. — 

 Boriinia (/ranulata, F. v. M. Fragm. i. 101. 

 Hab.: Belmont, near Brisbane. 



2. BORONIA, Sm. 



(After F. Borone.) 



Calyx 4-cleft. Petals 4, either much imbricate or valvate in the bud, spreading. 

 Disk thick, entire or (in one species only) with 4 gland-like lobes. Stamehs 8, 

 inserted outside the disk ; anthers either all similar and perfect or 4 different 

 from the others and imperfect. Carpels of the ovary 4, distinct or nearly so ; 

 styles terminal, united ; stigma entire or 4-lobed. Ovules 2 in e'ach carpel, 

 superposed or rarely collateral. Cocci usually 4, 2-valved, the endocarp carti- 

 laginous and separating elastically. Seeds solitary or rarely 2 in each coccus, 

 oblong ; testa crustaceous. — Shrubs, undershrubs, or rarely annuals, glabrous-, 

 pubescent or hirsute, rarely tomentose. Leaves opposite, simple, pinnate with a 

 terminal leaflet, or once or twice ternately compound, the rhachis usually 

 articulate at each pair of leaflets and often dilated between them. Peduncles 

 axillary or terminal, either 1 -flowered and jointed with a pair of minute bracts at 

 the joint, or bearing an umbel or dichotomous cyme of several flowers with 

 small bracts at the base of the pedicels. Flowers red, white, purple or blue. 

 Calyx-segments or sepals usually valvate when the petals are valvate and some- 

 times also when they are imbricate, but in the latter case the sepals are usually 

 also imbricate at the base. In some species the anthers and stigma are different 

 in different individuals of the same variety. In most of the species the filaments 

 of the sepaline stamens (those alternating with the petals) are longer and more 

 distinctly clavate or capitate and glandular at the top than the petaline ones. 

 Anthers usually very shortly stipitate, rather below the obtuse summit of the 

 filament. 



The species are all limited to Australia. 



Series €. Valvatae. — Petals strictly valvate. Sepals usually valva.te. 

 Sepals longer than the petals. Leaves mostly or aU pinnate . . . l.B. artemisitsfoUa: 



Sepals much smaller than the petals. 

 Inflorescence entirely axillary. 



Peduncles 1-flowered. ^ 



Leaflets (usually 5 or 7) obovate or ouneate, glabrous, complicate. 



Flowers tomentose, rather large . . . 2. B. erinntha. 



Leaflets 7 to 13 or more, small, linear or oblong, the margins revo- 

 lute. Sepals lanceolate, subulate-acuminate .... . . . S. B. alulatn. 



Leaflets 3, rarely 5, the margins recurved or revolute, tomentose or 



hoary underneath . . . i. B. ledifolia. 



Leaves simple. 



Leaves linear or linear-lanceolate. Flowers about 4 lines . . . . i. B. ledifolia. 

 Leaves oblong-lanceolate. Flowers about 2 lines . . 5. B. lanceolata. 



Peduncles bearing an umbel of several flowers. 



Leaves simple, lanceolate, tomentose underneath. Flowers small . 5. B. lanceolata. 

 Leaves pinnate, glabrous. Flowers in umbels, 1—5. Filaments 



ciliate • . G. B. Bnwmani. 



Section II. Pilina.tSB. — Petals imbncate. Anthers nearly uniform. Leaves pinnate. 

 Peduncles mostly axillary. 

 Peduncles mostly 3 or several-flowered. (Eastern species.) 



Glabrous. Leaflets small, thick, obovate ... . . .... 7. -B. nderop-liylla. 



Glabrous. Leaflets linear or oblong in distant jiairs 8. B.pinnatn. 



Series III. Variabiles.^-PctaZ.^ imbricate. Anthers nearly ■uniform. Leaves simple or 

 S-foliolate, or the terminal leaflet or all three ayain S-foliolate. Flowers axillary, red or pinl;. 



Terminal leaflets or all three dentate, or again 3 or .'5-foliolate. Erect or 



spreading shrub. Peduncles usually 3 to 5-flowered . ... . . 10. B. anemonifolia. 



