40 



THE TASMANIAN FLOBA. 



MedicaCtO. a genius diilering from the smaller TrifoUums in the pod 

 being coiled, or, even if 1-seeded, more or less curved. 



M. saiiva, hinn. Erect. Flowers blue, pink, or white. Pod many- 

 seeded, coiled. 



M. denticulata, Willd. Flowers yellow, few. Pod coiled, many- 

 seeded, toothed or smooth. Stipules toothed. 



JK. maculata, Willd. Similar to the last, only leaflets each with a 

 dark spot in the centre. 



M. minima, Linn. Similar to M. denticulata, only smaller, the 

 stipules not toothed. 



M. lupulina, Linn. Similar to M. denticulata, only softly hairy.. 

 Pods 1-seeded, dark, curved. 



20. ACACIA. 



Pod various, many-seeded. Stamens very numerous. Sepals very small,, 

 united at the base. Petals free in all Tasmanian species, all equal and minute. 

 In numerous species the leaves only attain perfection in the seedlings, after 

 which the secondary petioles and pinnules are lost, and the petiole becomes 

 spinescent, or flattened, and leaflike, audit is technically known as a, phyllode. A 

 reversion to the primitive type often tends to occur after injury, most particularly 

 in A. melanoxylon. 



A large genus of all tropical and sub-tropical situations. 



i. Leaves undivided, pungent ... ... ... ii. 



Leaves undivided, blunt ... ... ... ... vii. 



Leaves divided ... ... ... ... ... xiv. 



ii. Flowers in simple globose heads ... 



Flowers in ovoid or elongated spikes 

 iii. Leaves linear or broadest in the middle... 



Leaves broadest towards the base 

 iv. Pod flat, blunt, about T inch long 



Pod not flat, narrow, 1J-.3 inches long ... 

 V. Leaves narrow, pod not often constricted 



Leaves rather broad towards the base. Pod con- 

 stricted between seeds ... 

 vi. Spike dense, elongated, rarely small and ovoid . . . 

 Spike loose, rarely short and closely axillary . . . 

 vii. Flowers in simple dense spherical heads, 1-3 

 together in the axils 

 Flowers seldom so disposed 

 viii. Leaves with two midribs ... 

 Leaves with 1 midrib 

 ix. Flower-heads mostly racemed or panicled 



Flowers in spikes ... 

 X. Branches angled 



Branches cylindrical 

 xi. Leaves straight, acute 



Leaves curved, blunt 

 xii. Flowers small, in dense spherical heads 

 Flowers 2-4 in heads 

 xiii. Leaves oblong 



Leaves nearly linear 

 xiv. Leaflets narrow, oblong 

 Leaflets nearly filiform 

 XV. Pods constricted between the seeds 

 Pods hardly constricted ... 



