149 



Ordo liXXXI. Piperaceae. 



Ilerbae annuae v. perennes, saepius succulentae, vasoruni 

 fasciculis intra caulcni sparsis, v.fruticcs, vasorum fasciculis intra 

 medullani solilariis, in ligno radiatis, zonis annotinis vix distin- 

 guendis. Caulcs siniplices v. raniosi, tcretes, nodoso-articulati, 

 ramis aAillaribus solilariis sive oppositifoliis, nunH|uani verticil- 

 latis. Folia opposita v. verticillata, interdum follo altero aborlivo 

 altcrna, siniplicia, inlegerrima, nervosa, reliculalo-venosa, ver- 

 natione semel complicata v. convoluta, peliolo (interdum brevis- 

 simo) basi vaginanle. Stipulae nullae. Flores pcrfecli v. sta- 

 ininura aborlu dioici, perigonio destituti, bractea, saepissime 

 peltata v. adnalo-decurrente stipali, in spadice saepe carnoso 

 subcylindrico sessiles v. ejusdem foveoljs semiimmersi, rarius pe- 

 dicellati, spadicibus solitariis v. fasciculalis, tcrminalibus aut op- 

 positifoliis, nudis sive spatha foliacea brevi (petioli vagina) slipa- 

 tis. Stami?ia nunc duo, dextrum et sinistrum germinis lalus 

 stipantia, nunc tria, uno postico, saepius plura, sena v. indefinita, 

 quibusdam tunc abortivis, difformibus. Filamcnta brevissima, 

 linearia, basi cum germine connata. Jntherae cxtrorsae, ovatae, 

 adnatae, Liloculares, v. rarius uniloculares, longiludinaliter de- 

 liiscentes. Pollinis granula laevia, subglobosa, pellucida. Ger- 

 men monophyllum, sessile, subglobosum, uniloculare. Gemmula 

 unica, basilaris, sessilis, orthotropa. Stigma sessile, terminale 

 V. subobliquum, hreve v. subulato-elongatum sive orbiculatum, 

 indivisum v. tri-quadrilobum, glabrum v. hispidum. Bacca mono- 

 sperma, parce carnosa. Semen e basi erectum, suhglobosum, 

 integumento cartilagineo, tenui. Alhumen dense carnosum v. 

 subcartilagineum, centro saepius cavura. Embryo in apice semi- 

 nis antitropus, in albuminis cavitate superficiali contentus, intra 

 sacculum amnioticum persistentem inclusus, parvus, turbinalus v. 

 \eii\\c\x\AT\s^cotijledo7iibus duabus brevissimis, crassiusculis, radi- 

 cula supera. 



G E N K R A. 

 1820. Miildera3%. /. Steffensla TT;///^/;, 



1 S2 1 . Piper TJn. S • Micropipei- Mui. 



«. Cu1>el)a Miq. ■» D"JiatreIia Gaud. 



a. Melamiii^^rtrf/. h. Pepeioniia i)//(/. 



/5. Ceetla £V/(^/. 1S22. Laurea 6'^/?/(//e^, 



'• ^'^"^Sm,. 1S23. o.i™ia .w 



. ATa.,.^,.:.,^.. nrl. .Seiroaia Guilhm, 



Ottonia Kiinl]i. 



c. Macropi p er iFJi^;. 



d. Potoniorplie Mlq. , ir , r- w 



Heckoria Kunth. ^- Enckea Kvnth. 



e. Artantlie .1//y. 182|. Zippelia />Vm//^ 



.Seliilleria A'w/^</f. 



Affinitas. De Piperacearum inler plantas Acrampliibryas sede 

 dubiiim esse nequit, nam einbryo cer(e dicotyledoneus est, nec caulis slrucfura 

 in tanlum a reliciuis hujus sectionis plantis abliorrent, ut inter Acraniphibryas 

 et Amphibryas intermediae dici vel plane his possint accenseri. Proxima est 



