342 CLIII. URTICACEiE. 



2 diatinctis oblongis v. curvulis, parallelis v. leviter divergent ibus, rima longitudinali 



extrorsum lateraliter v. introrsum dehisce lit ib us. Ovarii rudinientuni v. plus minus 



evolutum. Fl. $ : Statninodia rara. Ovarium superum v. in paucis generibus plus 



minus inferum, uniloculare, e carpello unico constans. Stylus primum terminalis, mox 



tamen carpello oblique accreto srepius exccntricus v. fere lateralis, indivisus 2-fidus v. 2- 



partitus ; stigma unicum, in stylo indiviso torminale v. obliquum v. plus minus uno latere 



decurrenSj in stylo diviso ramos ambos introrsum a basi continuiter vestiens. Ovulum 



unicum v. rarissime altero mox abortiente comitatuni, nunc basi v. prope basin affixum, 



erectum v. adscendens, orthotropum v. brevissime amphitropum, nunc apice v. sub apice 



afl&xun^, pendulum, anatropum v. breviter amphitropxiin, micropyle semper supera. Fritc- 



tiis indehiscens, monospermus, saipius parvus, nunc achsenium siccum carnosulum v. 



succulentum liberum v. perianthio inclusum v. adnatum, nunc drupa libera, nunc fructus 



plures receptaculo carnoso plus minus immersi v. id obtegentes in syncarpium connati v. arete 



conferti. Semen erectinn, pendulum, v. lateraliter affixum, pericarpio subconforme, testa 



membranacea v. rarissime Crustacea. Albumen 0, v. tenue embryonem involvenSj rarius 



copiosius carnosum unilaterale v. inter plicas embryonis intrusum. Emhryo nunc rectus 



V. curvus, cotyledonibus sequalibus carnosis, radicula brevi v. minima supera, nunc plus 



minus curvus, cotyledonibus varie insequalibus v. plicatis v. involutis, radicula supera v. 



sursum incurva incumbente. 



Arbores frutices v. herbse, habitu vario. Folia alterna v. rarius opposita, integerrinia 

 dentata lobata v. palmatim partita nee pinnata et rarissime pinnatifida. Stipulse nunc 

 laterales distinctse, nunc in unam intrapetiolarem connat?e, gemmam terminalem ssepe 

 includentes, mox decidua; cicatricem transversam v. annularem relinquentes, rarius in 

 generibus paucis oppositifoliis utrinque in unam interpetiolarem connatse. Tnflorescentia 

 primaria centrii)eta, axillaris v. ad nodos vetustos, nee unquam terminalis ; ultima ad 

 normam centrifuge cymulosa, interdum vero cymulis ad florem unicum reductis undique 

 ceutripeta. Cymulse dum pluriflorte in glomerulos seii capitula confertse v. laxe 2-3- 

 chotomse, in pedunculo axillari solitariae v. secus rliachin simplicem v. ramosam plures 

 sessiles v. pedicellatte, in spicam densam v. interruptam, in racemum v. in paniculam dis- 

 positse, v. interdum flores in receptaculo carnoso densissime conferti cymulis vix v. non 

 distinguendis. Bracte.iG srepius parvfe v. 0, interdum vero 2-4 v. phires ad basin glome- 

 ruli V. capituli imbricatee. Bracteolse sub quoque flore sajpius minimse v. 0, interdum 

 conspicuas v. etiam flores occultantes. 



Species bene notae vix ultra 1500, per regiones calidiores temperatasque utriiisque orbis late 

 dispersse, et tribus nostrae, ab auctoribus nonuullis pro ordinibus propriis habitse, onmcs utrique 

 orbi conuiJuneB sunt, Uhnece et Cannahinece plerseque extratropicse, JJrticca etiam plurimse et paucae 

 inter Ccltideas et Moreas extra tropicos vigent, plerjieque tamen ex his tribubus, et Artocarpea et 

 Cmiocephalea fere omnes, inter tropicos limitatse sunt. 



Ordo optime limitatus, nulli inter Polypetalas ;ircte affinis. Weddell cum TiUaceis comparat, sed 

 nostro sensn characteribus primariis perianthfi androedi et gyncecii longe distat. Inter Monochla- 

 mydeaa Euphorhiaceis propius accedit, pro maxima parte tamen differt staminibns segmentis lobisve 

 perianthii isomeris ii&que oppositis, pi.stillomonoearpico, albiimine tenui v. 0. Hi eharacteres tamen 

 bine inde etiam in Eu^jhorblaceis adsunt, etsi non omnes in eodem genere. Stamina perianthii 

 segmentis opposita et isomera in plxiribus Vhyllanthehi, pistilliim mouooarpicum in Eremantho et in 

 Macarangis nonnullis, semen exalbuminosum v. albuminu teuui in Acteijhila, Discocarpo, Heveaj 

 Simmo?id^ia, aliifcque. Urtiecice<s nonnullae, imprimis e tribubus 1 ad 4, ab auctoribus pluribus dicarpicse 

 dicuntur, stylis 2 plus minus distinctis, ovario abortu 1-loculari ; nostro sensu tamen stylus semper 

 unicus, sed more stylorum plurium Etijtkorhiacearum SEepe alte 2-fidus, ramis a basi stigmatosis nee 

 stigmata distincta ferentibus. 



VOB.J&M ABNORMES. 



Flores fertiles nonnuUi v. plerique hermaphro<Iiti in Ulmeis, in generibus pluribus o CeltideiSj et 



interdum in Pariefaria. 



Stamina oo in Ampeloccra et Thclygono, in quoque flore solitaria in F(yrsJcoJilkh et in generibus 

 pluribus ArtocarpcarujiL, numerosa squamis intonnixta noc in floras Histinpfos aegregata, capituluiri 



