OXALIDEAE 241 



Ordo XVII. OXALIDEAE 



Cah/x qiiinquesepaliis vel quinquepartitiis, segmentis ae- 

 qualibus, aestivatione imbricatis; pctala quinque liypogyna, 

 laciniis calycinis aut sepalis alterna et longiora, aliquando 

 per ungue coalita, unguibus erectis et laminis patentibus, ae- 

 stivatione spiraliter contortis; stamina decem basi liypogyna 

 et coalita, petalis alterna longiora et opposita breviora, ali- 

 quando ananthera, glaberrima aut hirtella, antheris introrsis, 

 bilocularibus; ovarium sessile, quinqueloculare et quinquean- 

 gulare; styli quinque, filiformes, liberi vel coaliti; stigmata 

 capitata aut subbifida; capsula ovata aut oblonga, subpenta- 

 goua, membranacea, quinquelocularis, per 5-10 valvas longi- 

 tudinaliter dehiscens; semiiia pauca, angulo centrali loculamen- 

 torum adfixa, albumine cartilagineo, embryone recto vel sub- 

 curvato , cotyledonibus foliaceis et radicula supera. Herbae 

 acaules vel caulescentes, radice saepius bulbosa vel tubero- 

 sa, raro suffrutices aut arbores, succo aqueo acidulo praedi- 

 ti; folia alterna saepissime conferta, petiolata, digitata, fo- 

 liolis sessilibus vel petiululatis; stipulae nullae; /ores herma- 

 phroditi, regulares, umbellaii aut racemoso-paniculati, vario- 

 colorati, albi, rubri vel flavi. 



Endl. Gen. Pl. pag. 1171. — DC. Prodr. 1. pag. 689.— 

 Moris Fl. Sard. 1. pag. 362.—Torn. Fl. Sie. pag. 178. 



Genus 1. Oxalis. 



Calyx quinquifidus vel quinquepartitus, persistens; corolla 

 regularis, quinquepetala, basi gonophori inserta; petala laci- 

 niis calycinis alterna et longiora, obtusa, breviter unguicu- 

 lata, unguibus coalita aut libera; stamina dccem petalis al- 

 terna et breviora, et sepalis opposita et longiora, fllamentis 

 complanatis, apice acutis et antheris dorso insertis; ovarium 

 gonophoro brevi insidens, quinqueloculare; ovula in loculis 

 Eolitaria aut plara; stgli quinque, centrales; stigmata capita- 

 ta, bifida vel penicellata; capsula herbacea, membranacea; 

 semina in loculis solitariis elastice dissilientibus, umbilico pro- 



F. ToRNABBNE — FlOTa Aetnea. Vol, I. 16 



