KEY TO THE GENERA. XI 



* Penanth- segments unequal. 



24. DiPLARRHENA. — lunei' segments shorter, connivent. Upper 



stamen imperl'ect. — Australia. 



25. LiBERTiA. — Inner segments obovate-cuneate ; outer oblong, 

 nsnally sbortca'. Stamens all perfect. — Australia, New Zealand, 

 Chili. 



>\<:\-- Perianth-segments suhequal. 



26. Belejicanda, — Leaves broad. Inflorescence a lax corymb. 

 Style-branches flattened and emarginate at the apex. Flowers red, 

 dotted. — China. 



27. Orthosanthus. — Clusters panicled. Filaments nearly or 

 quite free. Style-branches subulate. Flowers pale blue, shortly 

 pedicellate. — Australia, Tropical America. 



28. BoBARTiA. — Clusters terminal on a leafless peduncle, usually 

 fascicled. Style-branches subulate. Flowers pale yellow, with long 

 pedicels. — Cape. 



29. SisYRiNCHiuM. — Clusters terminal, single or fascicled. 

 Filaments more or less connate. Style-branches subulate. Flowers 

 usually blue or yellow ; pedicels long. — America, Sandwich Islands, 

 Ireland. 



30. Tapeinia. — Stem very short, bearing a single 1-flowered 

 spathe. — Magellan Straits. 



Subtribe IV. Ariste-e. — Eootstock not a bulb nor corm. Perianth 

 with a distinct tube above the ovary. Flowers fugitive, usually 

 more than one to a spathe. 



''" Perianth-segments unequal. 



31. Patersonia. — Inner segments very small. Filaments con- 

 nate. — Australia. 



32. Cleanthe. — Inner segments the largest, obovate. Filaments 

 free. — Cape. 



** Perianth-segments suhequal. 

 t Filaments connate. 



38. Syjiphyostemon. — Perianth-tube funnel-shaped. Style- 

 branches spreading, subulate. — Cliili lO Southern Andes. 



34. Chaji.elum. — Perianth-tube slender. Style shortly tri- 

 cuspidate. — Chili. 



35. Solenomelus. — Perianth-tube slender. Style unbranched. 

 — Chili. 



ft Filaments free. 



36. Aeistea. — Herbaceous, rarely fruticose. Perianth-tube 

 short, cylindrical. Filaments short, subulate. — Cape, Tropical 

 Africa, Madagascar. 



37. Witsenia. — Fruticose. Perianth-tube funnel-shaped, longer 

 than the segments. — Cape. 



38. Klatxia. — Fruticose. Perianth-tube short, cylindrical. 

 Filaments very long, filiform. — Cape. 



