Triplarldece,] CXXXIV. POLYGOXACEJ^. 105 



ajDicem ovarii sessilia v. stylis brevibus fiilta ; ovulum sessile. Nux obtuse 3-gona, pyra- 

 nxidata, basi incrassata 3-G-sulcata, periantbio toto v. ejus basi velata. Semen profunde 

 3-6-sulcatum, albumine lobato et ruminato; embryo subcentralis, cotyledonibus latis 

 l^lanis V. leviter convolutis. — Arbores v. frutices elatiores. Folia altenia, ovata v. lanceo- 

 lata, quam in Triplare minoraj pennivenia, impressionibus nullis vernatiuiiis. Ocrese 

 deciduse. Flores intra bracteas parvas fasciculati, pedicellati, in racemos tenues multi- 

 floros s^epius breves simplices v. paniculatos dispositi. 



Species fere 20, America; australis tropicse v. subtropicae incolae. Meissn. in DC. Prod. xiv. 179. 

 Griseb. PL Loreiitz. Q5. 



Genus foliis inflorescentia fioribus masculis et micibiis a TV/p^rtribenedistinctum.. etsi perianthium 

 fructiferum interdum sabsimile. In soctiones 2 serpentes facile divitlitur: — 



1. Psetidotriplans. Perianthium fructiferum (ei Triiylaris subsimilo) basi sericeo-villosuni, ovoi- 

 deum, lobis exterioribus accretis membranaceo-scariosis venosis alfeformibus. Hue pertinent species 

 6 prioros rrodronii, Mchsn. hi Mart. FL Bras. v. i. t. 26, cum H. costaia et H. Cruegeri, Griseb., et 

 Tnplari coriacca, Karst. FL Columb. t. 169, 



2. EuruprccJitia. Periantliium fructiferum glabrum, scgmentis extorioriljus a basi erectis appressig 

 oblongis subcoriaceis non venosis. lucludit B. salicifoliam, C. A. IMey., Meissn. in Mart. Fl. Bras. 

 V. i. t. 27, cum spcciebiis post illam in Prodrome enumeratis et E. Virara, Griseb. 



30. Symmeria, Bentli, in Hook. Loud. Joum. iv. G30.— Flores dioici (v. rarius in ramis 

 diversis monoici ?). ^ : Perianthium 6-partituin, segmentis omnibus suborbiculatis, ex- 

 terioribus 2 V. 3 paullo minoribus. Stamina muiierosa (20-50) in disco centrali dense 

 conferta, filamentis breviter Uliformibus. Ovarii rudimentum 0. Fl. $ : Perianthium 

 per anthesin masculo vix majus, segmentis 3 exterioribus liberis ovatis patentibus caducis- 

 simis, 3 interioribus majoribus, in massam camosam obtuse 3-gonam apice 3-dentatam con- 

 cretis, post anthesin valde auctum, pyrauiidato 3-gonum. Ovarium in cavo centrali inclusum 

 at a pariete libeimm, acute 3-gonum ; stylus cum perianthio connatus, summo vertice intra 

 dentes perianthii breviter liber, 3-alatus, stigmatibus 3 patentibus fimbriato-laceris mox 

 deciduis. Perianthium fructiferum valde auctum, pyramidato-3-gonuni, angulis acutis 

 fere in alas coriaceas productis, suberoso-carnosunij apice breviter 3-lobum. Nux infra 

 medium perianthii arete inclusa, non tamen adnata, acutissime 3-gona, faciebus planis v. 

 concavis nitidis. Semen conforme (in fructibus vix perfecte niaturig observatum), 

 albumine ruminato ; embryo reetiusculus, cotyledonibus latis.— Arbores fruticesve. Folia 

 alterna, ample oblonga, pennivenia ; petioli breves, basi amplexicaules et membranaceo- 

 dilatati, vix tamen distinctc ocreati. Flores parvi, intra bracteas cupulares plures, 

 brevissime pedicellati, fasciculis tenuiter spicatis, spicis ad apices ramorum paniculatis. 

 Perianthium fructiferum srepe G-10 lin. longum. 



Species 2, altera in Guiana ct Brasilia boreali sat frequens, Afeissv. in DC. Pmd. xiv. ISG, rt in 

 MaH. FL Bras. v. i. t. 23, alfccrius specimen maseulum tantum vidimus in Herb. Hook, in Senegambia 

 a Heudelot lectum sub n. 334; S. paniculatts VAXda iMms videtur, notis pauci momonti diversa 

 sed stirpo foemiuea adhuc ignota baud tute dignosccuda. 



Ordo CXXXV. PODOSTEMACXSiSE!. 



Fndl. Qoi-i. 2G8. Lindl. Veg. Kingd. 482. Tul. Podost. Monogr. in Archiv. Mus. Par. vi. 41. 



J^'^ores hermaphroditiv, in HydvodacU dioici. Perianthium membranaceum, 3-fidnm 

 y. 5-partituin, v. 0, nisi pro perianthii segmentis haberes squamellas minimas v. lineares 

 in pluribus genoribus staminibus exterioribus alterni.s, a nonnullis staminodia dictis. 

 Stamina hypogyna nunc go, numerosa v. pauca, filamentis liberis, in verticillum 

 perfectum v. imporfectum circa Ovarium disposita, nunc 2 v. rarius 3 filamentis plus 



