518 



Ordo CCXIII. Buttneriaceae* 



Jrbores^ frutices v. suffruticcs, erccti aut interdum scan- 

 dentes, rarius herbae^ annuae v. perennes, pube stellata aut bi- 

 furca, rarius lepidota. Folia allerna, petiolata, simplicia, penni- 

 nervia v. palmatinervia, intei^ra, pinnatilida v. saepius palmaliloba, 

 dentata v. serrata, rarissime integerrima. Slipulae ad basim pe- 

 tiolorum liberae, deciduae, rarius foliaceae et persistentes, raris- 

 sime nullae. Flores perfccli regulares, axillares v. opposilifolii 

 rarius subterminales, paniculati, spicati v. glomerati, nudi v. in- 

 volucello unilaterali aut ambiente, rarius involucro communi mu- 

 nili. Calyx herbaceus, membranaceus v. coriaceus, interdum 

 coloratus, quadri-quinquefidus v. partilus, aestivatione valvatus. 

 Corolla nulla, v. petala calycis laciniis numero aequalia et alterna, 

 receptaculo inserta, unguiculata, nunc plana, aestivatione convo- 

 lutiva V. spiratim contorta, nunc concavo-fornicata, superne in 

 laminam ligulaeformem, indivisam aut partitam, saepe cum tubi 

 staminei jobis cohaerentem producta, aestivatione valvatim in- 

 duplicata, persistentia v. decidua. Stamina receptaculo inserta, 

 nunc petalis numero aequalia et opposila!, nunc dupla alterna 

 ferlilia pelalis opposita, nunc multipla uniseriata, stcrilia calycis 

 lobis numero aequalia et opposita cum fertilibus pluribus alter- 

 nantia, rarissime omnia fertilia et coalita. Filamenta in cupulam, 

 tubum aut columnam connata, rarissime libera. Antherae ex- 

 trorsae aut rarius subintrorsae, in singulis tubi staminei lobis 

 singulae v. rarissime plures transversim superpositae, erectae v. 

 incumbentes, biloculares, loculis juxta totam longitudinem, rarius 

 prope apicem'poro v. riniula dehiscentibus. Germen liberum, 

 sessile v. breviter stipitatum, tetra-pentaphyllum, rarius pleio- 

 aul abortu interdum di-monophyllum, carpidiorum marginibus in 

 dissepimenla introdexis columnam centralem attingentibus quadri- 

 quinque- v. interdum decemloculare. Gemmulae in quovis loculo 

 geniinae, collaterales aut plurimae biseriatae, adscendentes v. 

 subhorizontales, rarissime pcndulae, anatropae. Styli terminales, 

 in unicum coaliti; stigmata loculorum numero, erecta v. patenlia. 

 Fructus rarissime indehiscens, plerumque capsularis, niembrana- 

 ceus, coriaceus v. lignosus, quadri-quinque-decemlocularis, nunc 

 loculicide dehiseens, valvis medio septa saepius demum bipartita 

 gerentibus, nunc seplicide in elementa carpica solutus, coccis 

 landem bivalvibus. Semina in loculis nunc gcmina v. abortu soli- 

 taria, nunc plurima, plerumque adscendenlia, rotundata, interdum 

 compressa et superne in alam membranaceam producta, integu- 

 menlo crustaceo v. membranaceo, hilo basilari v. prope basira 

 laterali, nudo aut strophiolato. Embryo intra albumen carnosura 

 V. mucilaginosum, nunc exalbuminosus, rectus v. homotrope ar- 

 cuatus; cotyledojiibus carnosis v. saepe foliaceis, integris aut bi- 



