262 XCIX. POLYGONACEJE. [ Emex. 
perhaps introduced from thence, there is one other closely allied to it from the Medi- 
terranean region of the northern hemisphere 
1. EK. australis, ud a AMA A Nat. Ser. 2, ix. 195, t. 7. Stems 
aus, rth ie aan g, glabrous as well as the whole 
plant. Leaves on xdi tikes, rol ovate, very obtuse, truncate or 
edadly cordate at the jim n. iti th ver 
ard, triquetrous, 4 to 5 ves ees with 3 rather She E thick spi- 
veg or mucronate.—Miq. in Pl. Prei i 625; Mein. in Linn 
963; E. CAE an qat Meissn. in ae xiv. 490, in Pl. Preiss. 
ii. ima and in DC. P 40. 
S. Australia. Near ih and pmo Bay, F. Mueller. 
W. Australia, Drummond, sy n. 290; Preiss, n. 1 895. 
tiser g ome s ier ng slightly from the Mediterranean 
species (E. spin B Cane) 3 in oi Fie fruiting perianth less rugose, the spines- 
cent eet a Gade and the inner erect ones broader and more rode 
me 
“3 
> 
2. RUMEX, Linn. 
Flowers hermaphrodite or unisexual. Perianth of 6 segments, the 
three inner ones enlarged after flowering and closing over the fruit, 
the three outer much smaller narrow and recurved. uec 6. 
Styles 3, shortly filiform, with large fringed s Nut triangu 
enclosed i in the persistent perianth. Embryo ieee the radicle pes 
— Herbs or rarely, in species not Australian „shrubs, usually glabrous. 
Flosihs small, herbaceous or the males petal- like, al all often turning ret 
usually on recurved pedicels, in whorl-like clusters, either axillary or in 
terminal racemes or panicles. Stipules sheathing, pete usually 
brown, at first entire but almost always very soon torn 0 d 
A consi on — widely distributed over we oes of the E but more espe- 
cially in tem e regions, and a few species are amongst the roadside weeds icr 
the most radiy establish themselves in new cou tries the 8. species here as ia 
three are c certainly and a ve i pana introduced from Europe or South Afric 
the remaining four a to 
Flowers all or mostly hermaphrodit 
— ios rianth-segments with entire margins, one or all bear- 
ga : tubercle on the midrib. 
ner periant road, mostly cordate. Panicle : 
ex. with on crowded branches 1. 2. eruput. 
den 
Inner veg th-segments narrow. Panicle with elongated 
branches the clusters of iden distan je 9, B. conglomeratus. 
Inner perianth-se segments bordered by lon copd "ih. 
Flower-clusters distant alo Pur i e branches, without floral 
eaves except to the low 
Teeth of the inner peranth egments five, with revolute 
3. 8. R: Brownii. 
Teeth of the i inner rianth, se ents rigid and straight 
e pera egmer "E v 4. R. pulcher. 
, Floral leaves all Ta er tha. ay 
le very m ‘ines divailabsedy: Wanoh: Clusters few- 
flowered. Fru eens Melk rather Jen EERE 
tubercles 
5. R. dumosus. 
SM i e 
xa TNT ee 
