THE TASMANIAN FLORA. 



33. Stamens and pistil on separate flowers ; flowers on 



axillary peduncles xxxiv. CueurbUacece^ 



Flowers terminal, perfect 34. 



34. Flowers solitary or few together; corolla herbaceous, ,i 



white or blue xliii. OamipamdacecB, 



Flowers few or numerous, in dense heads or spikes, small 



and obscure; corolla scarious, 4-lobed lix. Plantaginacece. 



35. Stamens more or less combined with one another; ovaiy 



inferior 36. 



Stamens perfectly free 37. 



36. Stamens intimately blended with the style, in a movable 



trigger-like or irritable column xli. Stylidiacece. 



Stamens 5, forming a tube round the style xliii. Campanulaeece. 



37. Flowers numerous, in dense cushion-like heads, as in 



Cnmposita, only the stamens are free (p. 71.) DipsacacecE, 



Inflorescence loose , 38. 



38. Ovary superior; sepals 2; stamens 2, closely surrounding 



the ovary; nearly leafless Ivi. Lentibulacece. 



Ovary superior; calyx 4 or 5-lobed; stamens 2 or 4 Iv. Serophulariaeece^ 



Ovary inferior or partially so; corolla split to the base 



on the upper side ; stigma in a linear or curved process. xlii. Goodeniacece. 



39. Leafless, or, if leafy, the leaves small, and the stem 



angled 40. 



Leaves fairly numerous and conspicuous 41. 



40. Leafless parasites, sometimes creeping on the ground ; 



anthers opening by valves Ixvi. Lauracece. 



Erect, with angled stems ; leaves (if present) few and 



distant Ixix. Euphorhiacece. 



Stems fleshy, swollen, and jointed . Ixi. GhenopodiacecB^ 



41. Flowers at least i in. diameter i. Banuncvlaeece. 



Flowers under i in., mostly obscure and minute 42. 



42. Leaves much divided 43. 



Leaves entire, toothed or lobed 44. 



43. Perianth distinctly inferior v. Cruciferce. 



Perianth enclosing the ovary, often with long barbed 



spines xxvi. Kosacece. 



44. Leaves with scarious sheathing stipules ixiv. Polygoniacece^ 



Stipules absent or small 45. 



45. Flowers small, gathered into small, dense, flat, terminal 



heads, surrounded by an involucre xxxvi. Umbellifera. 



Flowers otherwise disposed, if in heads neither flat nor 



surrounded by an involucre 46. 



46. Plant prostrate, tufted; leaves 1 to 2 lines long Ixviii. Thymeliacece. 



Plant erect or ascending; leaves exceeding 3 lines 47. 



47. Flowers generally numerous, in terminal or axillary 



racemes, panicles, or spikes 48. 



Flowers axillary, solitary or few, sessile or nearly so ... 51. 

 Flowers very obscure, terminal or axillary, few together, 



surrounded by an involucre of leaves; ovary 3-lobed ... Ixix. Euphorhiacece^ 



48. Flower-clusters strictly terminal 49. 



Flower-clusters chiefly axillary "] go' 



49. Flowers in loose racemes t. Cruciferce. 



Flowers in dense hairy heads . ... Ixii. Amarantacece. 



J< lowers in dense heads or spikes, but not interspersed 



with long hairs xxx. Ealoragece. 



50. Leaves glabrous or with white scales ,. ixi. Chenopodiaeea, 



Leaves bearing few or many coarse, often stinging, hairs. Ixx. Urticaceoe. 



61. Leaves broad and flat go 



Leaves filiform or fleshy ... ." ' go' 



52. Leaves exceeding i in. Land plants Ixx Uriirnren> 



Leaves under J in. Water plants W ... Z ^l\ gXra/e^'. 



