OF THE SOUTH AFEICAN FLOSA. xllX 



Order 97. Nyctaginece (p. 308). 



Cohort XXIX. Chenopodiales. — Flowers usually herui aphrodite and re- 

 gular. Perianth various. Stamens usually definite and perigynous. 

 Ovary 1-celled, with 1 or several ovules ; styles 1 or more. Fruit inde- 

 liiscent. Embryo usually curved in mealy albumen. — Herbs, very rarely 

 shrubs or trees. 

 Order 98. Polygonece (p. 309). Ovary 1-ovuled. 



„ 99. PhytolaccecB (p. 810). Ovary of many 2-ovuled carpels. 



„ 100. Chenopodiece (p. 311). Flowers irregular and unisexual in 



various genera. 

 ,, 101. AynarantacecB (p. 315). 

 „ 102. ParonycJiiecB (p. 319). 



Cohort XXX. Pen^ales. — Flowers hermaphrodite, regular. Periantli -i- 

 lobed. Stamens 4, alternate with the lobes of the perianth, or 8, 4 op- 

 posite and 4 alternate. Ovary 2-4-celled ; cells 2-4-ovuled ; stigmas 

 4 or 1, 4-lobed. Fruit capsular. — All shrubs, with opposite entire 

 leaves. 



Order 103. Penaaeece (p. 321). 

 „ 104. GeissolomecB (p. 323). 



Cohort XXXI. Laueales. — Flowers hermaphrodite, usually regular. Pe- 

 rianth herbaceoiis, or coriaceous tubular and 4-5-lobed, or spreading and 

 4-9-lobed. Stamens definite, inserted on the perianth. Ovary free, 1- 

 celled ; ovules 1 or several, peJidulous ; style and stigma simple. Fruit 

 indehisceut. — Shrubs and trees with alternate leaves. 



Order 105. Thymelea (p. 323). Bark very tough. 



„ 106. Laurinece (p. 327). Antliers opening by valves. 

 „ 107. ProteacecB (p. 328). Perianth often invgular. 



Cohort XXXII. Santalales. — Flowers often unisexual. Perianth usually 

 minute, 4-5-lobed. Stamens 4-5, opposite the perianth-lobes. Ovary 

 inferior, 1-celled, with 2-4 ovides pendulous from a free central placenta ; 

 stigma usually lobed. Fruit 0, indehisceut. — Herbs shrubs or trees. 



Order 108. Santalacece (p. 332). 



Cohort XXXIII. EuPHOEBiALES. — Flowers unisexual. Perianth various, 

 sometunes wanting. Stamens definite or indefinite. Ovary 2- or more 

 celled ; cells 1-2-ovvded ; stigmas as many as the ovary-cells or as often 

 lobed. Fruit capsidar, very rarely fleshy. — Herbs shrubs and trees of 

 very various habit. 



Order 109. EuphorhiacecB (p. 334). 



Cohort XXXIV. Urticaies. — Flowers usually unisexual and regular. 

 Perianth herbaceous, of 3 or more lobes or leaflets. Stamens usually as 

 many as the perianth-lobes and opposite them ; filaments inflexed in bud, 

 elastic. Ovary 1-celled, 1-ovuled ; style simple or 2-fid. Fruit never 

 capsular, often compound. — Herbs slnnibs and tr.?es of very various habit. 



Order 110. Urticacece (p. 342). 



(See Cohort XXXV. Ehizanthales.) 



Geoup IV. ACHLAMYDE.E. 



Perianth ; the stamens and pistils being usually placed in the axils of 



