TJRTICACE2E. 



525 



14. Pilea Lindl.' — Flowers monoecious. Male calyx 4-partite 

 (very rarely 2, 3-partite) ; segments concave rather fleshy, usually 

 thickly mucronate under membranous apex. Stamens as many. 

 Rudiment of gynseceum conical. Female calyx 3-partite ; segments 

 rather fleshy, usually unequal ; lateral rather flat, usually smaller ; 

 third gibbous or cucullate. Stamens rudimentary, oppositisepalous, 

 squamiform inflexed. Germen straight rather compressed ; ovule 

 suberect ; funicle slender oblique ; stigma sessile shortly penicillate. 

 Achene rotundate or ovate, suboblique compressed, smooth or rather 

 scabrous, almost naked or clothed by slightly enlarged calyx. 

 Cotyledons of exalbuminous or sparingly albuminous embryo rotund- 

 ate or ovate, longer than conical radicle. — Undershrubs or very 

 often annual or perennial herbs, erect or prostrate and rooting ; 

 leaves opposite, usually petiolate, generally unequal or 2-morphous in 

 the same pair, equilateral or more often inequilateral, entire or 

 variously dentate, 3-costate 3-plicostate or more rarely penni veined ; 

 ribs often immersed in rather fleshy limb ; cystoliths linear fusiform 

 punctiform or stellate ; stipules 2, connate to one, intra-axillary 

 entire deciduous or persistent ; flowers 2 glomerulate ; glomeruli 

 sometimes solitary or rarely geminate in often 2-stichous branching 

 cymes ; male pedicels articulate ; floral bracts shorter than calyx or 

 rarely large ; males soon deciduous 3 {Trojjical and subtropical 

 regions*). 



15? Achudernia Bl. 5 — Flowers polygamous. Male flower of 

 Pilea, 5-merous ; sepals unequal. Female and hermaphrodite 

 flowers 5-merous ; perianth-leaves a little unequal. Stamens 5, 



in Abh. d. Math.-Phys. Kl. d. Baier. Ak., iv. 

 (iii.), 317 (Procris). — Benth., Fl. Hongkong., 

 330.— Miq., Fl. Ind. Bat., i. p. ii. 239.— Seem., 

 Fl. Vit., 239. — Wedd., in Ann. Sc. Nat., ser. 4, 

 i. 187 {Pilea). — Walp., Ann., i. 647 (Procris). 



1 Collect., t. 4. — Endl., Gen., n. 1822.— 

 Wedd., Moaogr., 176, t. 6, C, 7, 8; Prodr., 

 104, 235 63 . — Dubrueilia Gaxjdich., Voy. Uran., 

 Bot., 495. 



2 .Males pink, whitish or pale-greenish ; females 

 green or reddish. 



3 Weddell divides the very numerous arti- 

 ficial species first by the shape of the leaves, 

 whence 3 sections : 1. integrifolia ; 2. hetero- 

 phyllce ; 3. dent at a. 



1 Spec, descr. about 160. Sw., in Act. Holm. 



(1787), 61; Fl. Ind. Occ, 305 (Vrtica).— Hook. 

 & Aen., Beech. Voy., Bot., 96. — Wight, Icon., 

 t. 1973.— Hook, f., Fl. Antarct., 344.— Wedd., 

 in Ann. Sc. Nat., ser. 3, xviii. 208 ; ser. 4, i. 

 186. — Bl., Mus. Lugd.-Bat., ii. 45, fig. 18.— A. 

 Gray, Man., ed. 5, 437.— Penzl., in Denk. d. 

 Wien. Kais. Akad. d. Wiss., i. 4. — Liebm., in 

 Keen. Dansk. Vid. Selsk. Skr., 5 Ra>kk. Nat. 

 og Math. Afd., ii. 296.— Geiseb., Cat. PI. 

 Cub., 59; Fl. Brit. W.-Ind., 157.— Seem., Bot. 

 Her , 194.— Miq., in Zoll. et Mor. Yerz., 105 ; 

 Fl. Ind. Bat., i. p. ii. 236 ; in Mart. Fl. Bras., 

 Urtic, 200. — Hance, in Ann. Sc. Nat., ser. 5, 

 v. 212. 



5 Mus. Lugd.-Bat., ii. 57, t. 20. — Wedd., 

 Monogr., 278, t. 9, A ; Prodr., 163. 



