538 NATURAL HISTORY OF PLANTS. 



gamophyllous, infundibuliform or subcampanulate, unequal-2-lipped ; 

 exterior lip longer inflexed in bud. Stamen 1. Female calyx ventri- 

 cose-tubular ; limb sub-5-dentate. Germen straight; ovule erect; 

 funicle short or ; style linear, sometimes more villous. Achene ovate 

 included in persistent calyx. Seed erect ; albumen scanty ; coty- 

 ledons broadly elliptical, longer than conical radicle. — Perennial 

 herbs ; stem creeping ; leaves alternate or more rarely opposite, petio- 

 late, serrate or crenate, 3 -ribbed ; stipules lateral petiolar, connate 

 interpetiolar leaf-opposed in some plants ; flowers in cymes or few- 

 flowered, sometimes I -flowered, exinvolucrate glomeruli; small female 

 cymes sessile, sometimes 1 -flowered; males pedunculate, 2-flowered 

 (Australia, Tasmania, New-Zealand, Abyssinia 1 ). 



39. Didymodoxa E. Met. 2 — Flowers monoecious. Male calyx 

 subbracteiform, shortly tubular at base, cucullate acuminate at 

 apex; edges ciliate closely connivent in lanceolate bud. Stamen 1. 

 Female calyx 0. Germen straight ; ovule erect ; stigma subcapitate 

 or shortly filiform, sometimes incurved, rather villous. Achene 

 ovate suboblique compressed, hence rather thick-keeled. Seed erect; 

 albumen scanty ; cotyledons rotundate subequal to terete radicle. — 

 Annual diffuse branching herbs ; leaves alternate, entire or crenate, 

 3-ribbed ; stipules petiolar scarious ciliate ; flowers in axillary 

 exinvolucrate androgynous glomeruli ; females sometimes 2-nately 

 concrete 3 (Cape of Good Hope 4 ). 



1 Spec. 3. Poie., Diet., Supp]., iv. 224, n. 2 In Fxs. Drege (ex Wedd., Jlonogr., 547, t. 



16 (Urtica).—A. Rich., Fl. Abyss. Tent., ii. 20, E ; Prodr., 235 6 '). 



259 (Pouzohia). — Wedd., in Ann. Sc. Nat., ser. 3 A genus very near Avstralina, differing in 



4, i. 212.— F. Muell., Syst. Ind. PI. Vict., 18.— androgynous inflorescence and female calyx 0. 



Hook, f., FL Nov.-Zel., 225; Fl. Tasman., i. * Spec. 3. Thuxb., Prodr., 31 {Parietaria) ? 



345. — Wedd., in Ann. Sc. Nat., ser. 4, i. 212 (Aus- 



tralina). 



