402 LILIACEsE. [Ruscus. 



TRIBE III. CONVAIiLARIE/E. Leaves radical. Flowers on a lateral naked 

 scape, racemed. Ovules anatropous 5. Convallaria. 



SERIES B. Rootstock not bulbous. Leaves radical. Flowers racemed or 

 panicled. Anthers bursting inwards. Fruit a loculicidal capsule. 



TRIBE IY. ASPHODELEJE 6. Simethis. 



SERIES C. Rootstock bulbous. Anthers bursting inwards. Fruit a loculicidal 



capsule. 



TRIBE V. ALLIED. Leaves radical. Flowers urabelled or capitate, on a 

 naked terminal scape ; heads or umbels enclosed at first in a 2-leaved 

 membranous involucre 7. Allium. 



TRIBE VI. SCILIiEJE. Leaves radical. Flowers 1-bracteate, racemed on a 

 terminal naked scape. 



Perianth globose ; mouth constricted 6-clef t , . . . . 8 . Mu scari . 



Perianth of 6 blue or red segments 9. Scilla. 



Perianth of 6 white segments 10. Ornithogalum. 



TRIBE VII. TUIiIPEJE. Leaves radical and cauline. Flowers few, solitary 



or loosely racemed or whorled ; perianth-segments 6, free. 

 Flowers few, large, nodding. Nectary or obscure. Anthers versatile. 



10*. Lilium. 



Flowers large, nodding. Nectary oblong. Anthers erect 11. Fritillaria. 



Flowers large, subsolitary. Nectary 0. Anthers erect 12. Tulipa, 



Flowers few, small (yellow). Nectary 0. Anthers erect 13. Gagea. 



Flowers few, small (white). Nectary transverse. Anthers erect... 14. Lloydia. 



SERIES D. Rootstock various. Anthers usually bursting laterally or out- 

 wards. (MelanthacecB.} 



TRIBE VIII. COLCHICE-ffi. Rootstock a corm. Leaves radical. Scape 

 very short, subterranean, 1-3-fld. Perianth with a very long slender 

 tube '. , 15. Colchicum. 



TRIBE IX. NARTHECIE.S2. Rootstock short or creeping. Leaves radical. 

 Scape erect. Perianth 6-cleft, usually persistent. Fruit capsular. 



Style very short, stigma small. Capsule loculicidal 16. Narthecium. 



Style 0; stigmas 3 short. Capsule septicidal 17. Tofieldia. 



TRIBE X. MEDEOLE.ffi. Rootstock stout, creeping ; stem simple. Leaves 

 radical or cauline and opposite, or whorled. Flowers terminal, solitary 

 or umbelled. Fruit a berry 18. Paris. 



1. RUS'CUS, L. BUTCHER'S BROOM. 



Evergreen, subdiopcious shrubs. Rootslock stout, creeping. Leares 

 minute scales, bearing in the axils leaf-like branches (" cladodes "). 

 Flowers minute, on the face or margin of the cladode. Perianth herba- 

 ceous, persistent ; segments 6, spreading, inner smaller, all partially 

 valvate in bud. Stamens 3, filaments connate in a short stout column ; 



