NYMPHJEACE2E. 103 



herbs ; rhizom rather thick ; leaves alternate exstipulate pitcher- 

 shaped or tubular ; flowers terminal solitary long-pedunculate ; 

 bracteoles 3, approximated into a membranous involucre under calyx 

 {North America). See p. 8S 



9. Darling-tonia Torr. — Sepals 5, connate below the base. 

 Petals 5, subsimilar, spreading. Germen obconical, plano-convex at. 

 top ; styles erect, 5 -fid at top ; lobes spreading, recurved, stigmatose 

 at apex ; cells of ovary 5, alternating with sepals ; ovules a*. 

 Capsule loculicidal, 5-valved ; seeds go, clavate, narrowed into a tube 

 at base, setose aculeate outside. — Herbs ; rhizome and leaves almost 

 of Sarracena ; leaves finally 2-winged ; flowers solitary; scapes 

 bearing remote alternate subfoliaceous bracts ; calyx ebracteolate 

 {California). See p. 90. 



10. Heliamphora Benth. — Sepals 4, 5, unequal petaloid imbri- 

 cate. Stamens oc ; filaments free ; anthers introrse, becoming 

 versatile. Germen 3-locular ; cells oc-ovuled ; ovules inserted 

 centrally, pluriseriate ; style erect, sulcate, tubular ; apex obtuse, 

 3-lobed, stigmatose. Capsule ovoid, loculicidal 3-valved; seeds co, 

 with a loosely reticulate skin extended into a membranous wing. — 

 Perennial herbs ; leaves pitcher-shaped ; flowers few in subnutant 

 racemes naked at base {Venezuela). See p. 91. 



