98 cviii. rHYTOLAccACE.'E (baker AND avright). [Phyiolocca. 



Xiower Guinea. Anji^ola, without i)recise locality, fx Engler. 



Mozamb. Dist. Witliont precise locality, ex Engler. 



Var. macrophiflla, Hakcr & Wripfht. licaves up to 3-4 in. broad, with a mucro 

 \^ lin. lonj;. Stamens shorter tl)an the perianth. — P. abi/ssinica, var. macrophylla^ 

 De Wild. & Dur. I'l. Thonn. Con<rol. 15. 



South Central. Conoco Free State : Xgali, 1200 ft., Thonner, .33. 



2. P. octandra, Linn. Sp. PL ed. ii. B31. A perennial herb. 

 Stems stout, erect, branched, 2-3 ft. long. Leaves oblong, acute, 

 cuneate at the base, 3-4 in. long, distinctly petioled. Flowering 

 racemes very dense ; pedicels very short. Flowers hermaphrodite. 

 Perianth green ; segments ovate. Stamens and carpels about H. Fruit 

 globose, umbilicate, purplish black, syncarpous. — Moquin in DC. Prodr. 

 xiii. ii. 32. /'. mexicana bacc'is sessilibiis, Dill. Hort. Kltham. ii. t. 239, 

 fig. 308. 



Upper Guinea. Laj^os. Rowland! 



Also in Xatal and Trojjical America. 



Okder CIX. POLYGONACE^. (By J. G. Baker, 

 with additions by C. II. Wright.) 



Flowers regular, hermaphrodite or polygamo-di(ccious. Perianth 

 inferior, coloured or greenish; tube short; lobes 4-6, imbricate. 

 Stamens usually H-9, inserted at the V)ase of the perianth ; filaments 

 filiform, free or connate at the base ; anthers 2-celled, dehiscing 

 longitudinally. Disk annular. Ovary superior, sessile, trigonous or 

 lenticular ; styles 2-3, distinct ; stigmas dilated or capitate ; ovule 

 solitary, orthotropous, basal, sessile or stipitate. Fruit an indehiscent 

 trigonous or lenticular nut. Seed similar in shape to the nut ; testa 

 membranous ; endosperm abundant ; embryo usually more or less 

 excentric ; cotyledons fiat, narrow or broad ; radicle long. — Herbs or 

 shrubs. Leaves alternate, with the base of the petiole dilated into 

 a membranous sheath. Flowers small, racemose or axillary, usually 

 fascicled in the axils of persistent membranous bracts. 



Species about 600, cosmopolitan. 

 Stems herbaceous (exce})t in liumex nerros-us). 



liase of the periantii accrescent and Ixcominir nut- 

 like 1. OXYGOMM. 



liase of the perianth not accrescent. 



Perianth-segments equal . . . .2. PoLYGOxr:M. 

 Inner and outer })erianth-segments very un- 

 equal 3. Kl'MEX. 



Stems shrubby. 



Flower dia'cions. Female perianth very accres- 

 cent . . . . . . . . .4. SviiSrEiaA. 



Flowers hermajjlirodite. Pedicel with a coria- 

 ceous wing ....... 5. HUUNNICIIIA. 



