Proteace® has n
D iU en ia c e s
Droserace®
3 Sou th -west ; nex t, Sou th -ea st ;
. Thymele®
. H®modorace®
. E e stia c e®
Sou th -w e st
S ou th -w e st
Sou th -w e st
South-east
South-east
Sou th -we st
S outh-east
S outli-we st
Sou th -we st
S ou th -ea st
S outh-east
S outh-east
S ou th -w est
S ou th -w e st
South-east
S outh-we st
South-east
South-east
in the Tropics.
Tropics.
Tropics.
Tropics.
Tropics.
Tropica.
Tropics.
Tropics.
Tropics.
Tropics,
H e r e again, Sev en -ten th s a tta in th e ir maxirrmm in th e South-west.
T h re e-ten th s „ „ South-east.
N o n e „ „ Tropics.
C. O rd e r s w b ic h are n o t a t a ll p e cu lia r t o A u s tr a lia , an d d o n o t th e r e a tta in th e ir m a x im um ,
b u t o f w h ic h m o r e th a n h a lf th e sp e c ie s ar e p e cu lia r , a n d m a n y b e lo n g t o p e cu lia r A u str a lia n
g e n e r a :—
1. Leguminos® has inost species in th e S o u th -e a s t; n ex t, S o u th -w e s t; f ew e s t in th e Tropics.
2 . Myrtaee® „ S ou th -w e st ,, S outh-east Tropics.
3 . Composit® „ South-east ,, S outh-west Tropics.
4 . TJmbelltfer® „ Sou th -east ,, S outh-west Tropics.
5. Iride® „ Sou th -w e st ,, S outh-east Tropics.
6. Melanthace® „ Sou th -ea st ,, S outh-west Tropics.
7. Santalace® „ S ou th -w e st ,, South-east Tropics.
8 . P hytolacc e® „ Sou th -w e st ,, S outh-east Tropics.
9 . Saxifrage® „ S outh-east ,„ S outh-west Tropics.
This giv e s F iv e -n in th s a tta in in g th e ir maximum in th e South-east.
Fou r -n in th s „ „ South-west.
N o n e „ „ Tropics.
D . O rd e rs, a ll c o n ta in in g u pw a rd s o f th ir ty sp e c ie s ,-b u t o f w h ic h com p a ra tiv e ly few , or n o n e , o f
th e g en e r a ar e pe cu lia r .
1. Gramine® has m o st species in the Tropics ; next, S ou th -e a st; f e w e s t v.n th e South-west.
2. Cyperace® „ South-we st „ Sou th -east „ Tropics.
3. Orchide® South-east „ S ou th -w e st „ Tropics.
4. Euphorbiace® Tropics „ South-east „ South-west,
5. Labiat® South-east S outh-we st „ Tropics.
6. LUiace® South-east „ S ou th -w e st „ Tropics.
7. Rubiace® „ Tropics „ Sou th -ea st „ South-west.
8. Scropbularine® „ Tropics S outh-east „ South-west.
9. Amaranthace® South-we st Tropics „ South-east,
10. Chenopodiace® „ S outh-west „ S outh-east „ Tropics.
1 1 . Sapindace® „ Tropica „ S ou th -w e st „ South-east.
12. Malvace® Tropica „ Sou th -ea st „ South-west.
13. Convolvulace® „ Tropics „ S outh-east „ South-west.
14. Ehanme® Tropics „ Sou th -w est „ South-east.
tstra lia .} INTRODUCTORY ESSAY.
15. yaTheniLceiiihas most species in th e T r o p ic s ; next, Sou th -w est f e w e s t in th e South-east,
16. Loganiace® „ Tropics „ S ou th -w e st „ South-east.
17. Crucifer® „ Sou th -east „ S ou th -w e st „ Tropics.
18. Loranthace® „ Tropics „ S outh-east „ South-west.
1 9. Lobeliaee® „ Sou th -w e st „ S outh-east „ Tropics.
2 0 . Ur tic e® „ Tropics „ Sou th -east „ South-we st.
21, E anunculace® „ S outh-east „ S outh-we st „ Tropics.
2 2. P olygale® „ Sou th -w est „ S outh-east „ Tropics.
23, Solane® „ Tropics „ Sou th -east „ S outh-west.
2 4 . Lentibularine® „ S outh-east „ S ou th -w e st „ Tropics.
25. Boragine® „ Tropics „ S ou th -w e st „ South-east.
T h e seq u en c e in th is ca se i s w h o lly in v e r ted from w h a t o b ta in ed in A a n d B , a n d w e h a v e—
F o u r te en tw enty-fifths a tta in in g their maximum in th e Tropics.
Six twen ty-fifth s „ „ South-east.
F iv e twen ty-fifth s „ „ South-west.
T h is a c cum u la tio n o f o rd in a l an d g en e r ic p e cu lia r ity o f A u s tr a lia n v e g e ta t io n in th e s o u th -w e s t
q u ar te r o f th e c o n tin e n t, a s com p a red w ith th e s o u th - e a s t e sp e c ia lly , is a v e r y r em a rk a b le f e a tu r e ;
i t w ou ld s t ill h a v e b e e n v e ry s tr ik in g h ad th e r e b e en an y c o n tr a s tin g p e c u lia r ity o f c lim a t e or su r fac e
b e tw e en th e s e d is t r ic ts , w h ic h is n o t th e case.
A n ex am in a tio n o f th e p rop o r tion s w h ich th e la r g e s t N a tu r a l O rders bea r to th e w h o le F lo r a
affords v e r y im p o r ta n t d a ta fo r d e te rm in in g th e r e la tio n s o f a F lo r a . I fin d th a t h a lf th e A u stra lian
sp e c ie s are in c lu d ed un d e r th e fo llow in g O rd e r s, w h ic h I h a v e h e r e ar ranged n e a r ly in th e order
o f th e ir n um e r ic a l e x te n t , an d con tr a sted th em w ith th o s e o f s om e o th e r c o u n tr ie s.
A u stra lia . India. South A frica . Europe. W orld.
1. Leguminos®. Legumiuos®. Composit®. Composit®. Composit®.
2. Myrtaee®.' Rubiace®. Leguminos®. Leguminos®. Leguminos®.
3, Proteace®. Orchide® Erice®. Crucifer®. Gramine®.
4 . Composit®. Composit®. Gi’amine®. Gramme®. Orchide®.
5. Gramine®. Gramine®. Liliace®. Dmbellifer®. Rubiace®.
6. Cyperace®. Euphorbiace®. Iride®. Caryophyile®. Euphorbiace®.
7. Epacride®. Acanthace®. Diosme®. Scropbularine®. Labiat®.
8. Goodeniace®, Cyperace®. Scropbularine®. Labiat®. Myi-tace®.
9. Orchide®, Labiat®. Geraniace®. Eanunculace®. Cyperace®.
H e n c e i t appears, th a t o f th e n in e N a tu r a l Orde rs w h ich to g e th e r in c lu d e u pwards o f h a lf th e
k n ow n A u str a lia n F low e r in g P la n ts , th r e e Ordei-s are s im ila r ly ch a ra c te r istic o f all th e o th e r areas
com par ed, tw o o f th r e e ar eas, an d tw o o f tw o ar eas. I n o th e r words,—
Cdinposita', Logmuiuos®, and Gramine®, are foimd in all five areas.
Cj'povneoaJ and Orehido®, iu throe.
Ej)iiorido® (Ericc®) and Myrtaee®, in two.
Goodouiace® aud Protoacca', in Australia alone.
R u d e as th e ab o v e d a ta and m e th o d s o f com p a r ison a rc, th e y appear c le a r ly to cor rob o ra te th e
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