102 NATURAL HISTORY OF PLANTS. 



6. Barclaya Wall. — Receptacle cylindrical, surrounded at base 

 by 5 (" calycine ") imbricate leaves, produced into a tube above 

 gynseceum. " Petals oo, imbricate, inserted at top of receptacle. 

 Stamens cr, inserted above gynseceum within tube of receptacle ; 

 outer sterile ; inner recurved ; anthers oblong pendulous. Carpels 

 up to 10, quite included in tube ; ovules parietal, descending, ortho- 

 tropous ; styles adhering into a cone, slit at apex, concave and 

 stigmatiferous within. Berries round, surmounted by petaliferous 

 tube. Seeds oo, prickly. — Rhizome short, leaves petiolate, oblong 

 or orbicular, not peltate; flowers (axillary?) long-pedunculate 

 {Malaysia). See p. 85. 



7. Euryale Salisb. — Receptacle concave (almost of NywpJtaa), 

 prickly outside. Sepals, petals, and stamens oo (of NytuplicBa). 

 Carpels co, immersed in receptacle and adhering to form an inferior 



oo-locular germen, concave above, extruding from the centre a conical 

 orbicular process (apex of receptacle); styles radiating, with their 

 apices stigmatiferous, obtuse or produced into an unciform process 

 {Victoria). Berries spongy, prickly, bursting irregularly. Seeds oper- 

 culate, covered with a pulpy aril ; double albumen and embryo of 

 Nymphaa. — Perennial herbs bristling with prickles ; stem floating 

 leaves and inflorescence of Nywp//rpa (Tropical Asia, Equinoctial 

 America). See p. SG. 



IV. ? SARRACEKE^E. 



8. Sarracena T. — Flowers hermaphrodite, regular ; receptacle 

 convex. Sepals 5, imbricate. Petals 5, alternate, imbricate, de- 

 ciduous. Stamens oo, hypogynous ; filaments free ; anthers introrse, 

 becoming recurved and versatile, 2-rimose. Germen free; cells 5, 

 alternate with petals, complete or incomplete ; ovules oo, anatropous; 

 style slender, soon expanding into a peltate petaloid umbraculum, 

 with 5 radiating nerves, and 5 alternipetalous, minutely papillose, 

 stigmatiferous angles. Capsule usually surrounded at base by 

 calyx, loculicidal, 5-valved. Seeds oo, albuminous, with a sometimes 

 prominent sub-alate raphe; embryo small apical. — Perennial marshy 



