Emex. | POLYGONACE& (Wright). 481 
IV. EMEX, Neck. 
Flowers moneecious. Male flowers: Perianth-segments 5-6, equal, 
patent. Stamens 4—6 ; filaments filiform ; anthers ovate. Female 
jlowers: Perianth urceolate; tube ovoid; lobes 6 in 2 series. 
Ovary included in the tube, trigonous; styles 3, short, patent ; 
stigmas dilated, fimbriate. Perianth in fruit enlarged and hardened ; 
tube 3- or 6-angled, more or less transversely ribbed between the 
angles ; outer lobes patent, spiny, inner erect, obtuse or aristate. 
Nutlet free within the perianth-tube, triquetrous; pericarp mem- 
branous or scarcely crustaceous. Seed subterete; embryo much 
curved, lateral or almost peripheral ; cotyledons narrow, longer than 
the radicle. 
Rigid herbs; leaves alternate, petioled ; ochre more or less membranous, 
quickly splitting up or falling off ; flowers in axillary fascicles or the upper by 
the abortion of the leaves appearing racemose ; male flowers pedicelled, female 
sessile. 
Distris, A second species in the Mediterranean region. 
1, E.australis(Steinh. in Ann. Sci. Nat. 2™° sér. ix. 195, t.7, fig. 16) ; 
a herb; stem branched, 3 lin. in diam., ribbed when dry, glabrous ; 
leaves ovate or oval, with the outer basal angles rounded, obtuse, 
cuneate into the 2 in.-long petiole, 3 in. long, 2 in. wide, entire or 
obscurely crenate, glabrous ; outer fruiting perianth 6 lin. long, less 
indented between the angles than in £. spinosa,’ Linn., spines 
spreading ; inner segments broadly ovate, mucronate, strongl 
reticulately nerved. Benth. Fl. Austr. v. 262; Wood, Natal PI. t. 
360. E. Centropodium, Meisn. in Linnea, xiv. 490, and in DC. 
Prodr. xiv. 40; Bolus & Wolley-Dod in Trans. S. Afr. Phil. Soe. 
xiv. 312; Burtt-Davy in Trans. Agric. Journ. vii. (1909) 654. E. 
Podocentrum, Meisn. ex Drége, Zwei PA. Documente, 93, 99, 112, 128. 
E. spinosa, var. capensis, Campderd, Monogr. Rum. 59. Rumex 
spinosus, Thunb. Prodr. 67, and Fi. Cap. ed. Schult. 341, not of Linn. 
Podocentrum, Burch. ex Meisn. in Linnea, xiv. 489. Vibo australis, 
Greene, Man, Bot. San Francisc. Bay, 44. 
Sour Arrica: without locality, Oldenburg! Forster! Zeyher! MacOwan, 
22221 : 
Coast Recion: Cape Div.; Sand Flats between Paarden Island, Tygerberg 
and Blueberg, Drége ; near Cape Town, Wilms, 3552! Camp Ground, Wolley- 
Dod, 623! Wynberg Flats, Alexander Prior! Paarl Div. ; by the Berg River near 
Paarl, Drége; Riversdale Div. ; near Riversdale, Schlechter, 1865! between 
Zoetemelks River and Little Vet River, Burchell, 6818! Uitenhage Div. ; 
Winterhoek Mountains, Krauss, 784; Port Elizabeth Div, ; near Port Elizabeth, 
Drége! Albany Div.! Grahamstown, MacOwan, Fish River, 400-500 ft., Baur, 
1056! 
Centra Recion: Graaff Reinet Div. ; along the Sundays River near Monkey 
Ford, Burchell, 2877 ! 
Western Rearon: Little Namaqualand ; between Verleptpram and the mouth 
of the Orange River, under 1000 ft., Drége ! ‘ 
VOL. V.—SECT. I. 21 
