248 



XXII. PITTOSPOEE^r 



PUtoSporum pMUyraioides. 



Fruit cut Tertically 



Cmag.>. 



PiUosporum 

 phiUyriEouies, 

 Pistil (mag.). 



PilCesporum sinense. 



PiUosporum plnUyrosoides. Fruit fmag.). 



PiUosporum pMUyraioides. 

 Flower. 



PiUosporum phiUyj^moides. 

 Transverse section of fruit (mag.). 



PiUosporum undulatum. 

 Seed cut vertically (mag.). 



imbricate, deciduous. Petals 5, inserted on the receptacle, usually erect, claws 

 connivent or sometimes coherent, aestivation imbricate;, deciduous. Stamens 6, 

 alternating with the petals ; filaments filiform or subulate ; anthers introrse, cells 

 opening by short or long longitudinal slits. Ovaet free, sessile or stipitate, of 2 

 perfect cells, or incompletely 2-5-celled ; style terminal, simple ; stigma obtuse or 

 capitate ; ovules 2-seriate, horizontal or sub-ascending, anatropous. Pkuit a capsule 

 with 2-5 half-septiferous valves, or a more or less fleshy indehiscent berry. Seeds 

 often few from arrest, often immersed in a pulp or viscous juice ; testa loose^ raphe 

 short, thick. Embryo minute, at the base of a fleshy dense copious albumen ; 

 cotyledons indistinct. 



PEINCIPAL GENERA. 



* Pittosponim. * Bursaria. * SoUya. * Billardiera. 



JEVttosporecs are connected with Celastrinets by the polypetalous isostemonous corolla, imbricate 

 SBstivation, ascending anatropous ovules, dry or fleshy fruit, albuminous embryo, woody stem, and alternate 

 leaves. But in Celastrinets the stamens and petals are inserted outside a fleshy disk lining the bottom of 

 the calyx ; the cells of the ovary are perfect ; the seeds are enveloped in a pulpy aril, and the embryo is 

 axile in the albumen. There is also a real affinity between Pittosporem and the polypetalous pentandrous 

 Ericinece {Ledum), founded on the insertion, the pestivation and isostemony of the corolla, the many- 

 celled ovarv, the simple style, the anatronous ovules, the structure of the fruit, the albuminous Rmbrvn. 



