AND THEIK CULTUEE. 



215 



SUB-GENUS IV. ISOLIRION. 



Perianth, erect, with segments, which are falcate in the extended flower, 

 but not re volute ; stamens diverging on all sides from the straight style* 



Leaves in whorls 



20, Philadelphicum ; 21, Medeoloides. 

 Leaves scattered Style shorter than ovary 



22, Concolor. 

 Style longer than ovary 



23, Bulbiferum ; 24, Groceum ; 25, Davuricum ; 



26, Elegans ; 27, Catesbcei. 



SUB-GENUS V. MAETAGON. 



Perianth, cernuous, with the segments very re volute ; stamens diverging 

 on all side from the curved style. 

 C American species ; bulbs, annual, bearing rhizomes 



28, Oanadense ; 29, Pardalinum ; 30, Superlum ; 

 31, Lucidum ; 32, Eoezlii ; 33, Columbianum 



34, Humloldtii. 



Old-world species 



35, Mar I agon ; 36, Avenaceum ; 37, Hansoni. 



f Leaves lanceolate many nerved 



Perianth, falcate above the middle 



38, Monadelphum (Szovitzianuin). 

 Perianth, revolute to below the middle 



39, Polyplnjllwn ; 4<0,Ponticum; 41, Carniolicum. 

 Leaves narrowly linear with one or few nerves 



Segments of the perianth, from six to twelve lines, 

 broad in the middle 



42, Testaceuin ; 43, Leicliilinii ; 44, Batemanii ,- 

 45, Pseudo-tigrinum ; 46, Wallacei. 



Segments of the perianth, from three to six lines broad 

 in the middle 



47, Pomponium; 48. Chalcedonicum ; 49, Callosum;, 

 50, Tenuifolium. 



. The Nollwlirion group (Himalayan Lilies), with tunicated bulbs, stigma cleft 

 into three subulate hooked divisions, are now referred by Mr. Baker to the Fritillarias.. 

 Sec page 184. 



FINIS. 



