xvi THE TASMANIAN PLOHA. 



Perianth and stamens inserted below the ovary, but the 

 latter organ often absent or rudimentary 117. 



116. Perianth lid-like, thrown off at maturity; stamens 



numerous ^^\- Myrtaceoe. 



Perianth normal; stamens 4 or 5; flowers minute Izxiii. Santalacece. 



117. Perianth conspicuous, and usually petaloid 118. 



Perianth rather obscure, with more the appearance of a 



calyx 120. 



118. Small tree, with spines among the leaves; flowers white, 



in loose panicles vii. PittosporacecB. 



Plant otherwise constructed; leaves sometimes acutely 

 pointed 119. 



119. Stamens 2; perianth usually tubular, with 4 short 



spreading lobes, regular Ixviii. ThymeliacecB. 



Stamens 4, often inserted on the tips of the perianth, 

 which is of 4 segments, usually linear, and recurved, or 

 very irregular Ixvii. Proteacece. 



Stamens more than 4, usually numerous, and on separate 

 flowers to the pistil ; perianth obscure, usually of 6 seg- 

 ments Ixix. EuphorbiacecR. 



120. Leaves and flowers hairy, or covered with crystalline 



glands XXXV. Ficoidece. 



Plant glabrous 121. 



121. Stamens 8; flowers in loose clusters; fruit broadly 



winged xxiv. iSapindacem. 



Stamens about 16; flowers solitary, and nearly sessile in 



the leaf-axils ; fruit in 2 parts Ix. Phytolaccaceoe. 



Stamens 9 to very numerous ; flowers conspicuously 



stalked or clustered ; fruit 3-lobed or in 3 parts Ixix. EupTiorhiacece. 



122. Flowers with a distinct calyx and corolla 123. 



Flowers with but one floral envelope 140. 



123. Petals quite free from one another 124. 



Petals more or less united 135. 



124. Stamens 4-6, usually 6 125. 



Stamens usually 8-12 128. 



Stamens very numerous 133. 



125. Ovary superior, but partially immersed, and often buried 



in a fleshy disk, so as to appear inferior ; petals reduced 



to little over-arching hoods xxiii. RhamnacecB. 



Ovary superior; petals normal 126. 



Ovary distinctly inferior 127. 



126. Flowers small, in loose panicles ; fruit a coloured berry ; 



leaves 1-2 in., oblong; stamens 2 xlviii. Oleaeece. 



Flowers fairly conspicuous; fruit 1-4 follicles or nuts; 

 leaves usually trifoliate; petals 4; stamens 4 xxi. Butacece. 



127. Leaves large, divided xxxviii. Caprifoliaceoe. 



Leaves small, linear to oblong xxxi. Myrtacea. 



128. Leaves divided into 2 simple leaflets on a common stalk ... xix. Zygophyllacem. 

 Leaves entire, toothed or divided into 3 or more lobes or 



leaflets 129. 



129. Leaves simple, with a toothed or crenated margin 130. 



Leaves divided, or, if simple, with an entire margin 131. 



130. Flowers white, bell-shaped, solitary, on long slender 



stalks; fruit a berry xvii. TUiacecB. 



Flowers green, obscure, few together, on a short stalk in 



the leaf-axils xxvii. SaxifragacecB. 



131. Flowers very irregular xxv. LeguminoscB. 



Flowers regular 132. 



132. Perianth and stamens inferior; ovary in 4 parts xxi. SutacBce. 



Perianth and stamens superior xxxi. Myrtacece. 



133. Perianth and stamens distinctly superior xxxi. MyrtacBcB. 



Perianth and stamens inferior or nearly so ' 134. 



