PAUIS.] LILIACE.E. 377 



SERIKS 1. Rootstock creeping. Fruit a berry. 



TRIBE I. TRILLIDE'/E. Stem, with 1-2 whorls of reticulate -veined leaves. 

 Flowers not jointed on the pedicel. Styles free. Testa coriaceous or fleshy. 



Radicle next the hilum 1. Paris. 



TRIBE II. ASPARAGI'NE-ffi. Pedicel jointed. Styles combined or stigma 

 sessile. Testa various. Radicle far from the hilum. 



* Stem Imncftfd. Flowers often l-sexual. 



Flowers axillary, pedicels jointed in the middle 2. Asparagus. 



Flowers on the surface of a leaf- like branch 3. Ruscus. 



** Stem simple. Flov;ers 1-sexual. 



Scape leafless. Flowers racemose, subglobose 4. Convallaria. 



Stem leafy. Perianth tubular, 6-cleft 5. Polygonatum. 



Stem 2-leavcd. Perianth-segments 4 6. Smilacina. 



SERIES 2. Root of thick fleshy fibres. Fruit capsular, loculicidal. 

 TRIBE III. ANTHERI CE-ffi. Flwrers jointed on the pedicel. Style simple. 



Testa black, brittle. Radicle next the hilum 7. Simethis. 



SERIES 3. Root bulbous. Flowers not jointed on the pedicel. Fruit capsular. 

 TRIBE IV. LILIE'-a. Styles combined or stigma sessile. Capsule loculi- 

 cidal. Testa various. Radicle next the hilum. 



* Scape leafless. Flowers usually bracteate. 

 Flowers racemose or subracemose. 



Perianth-segments free, blue or pink 8. Scilla. 



Perianth globose, 6-toothed 9. Muscari. 



Perianth-segments free, white '. 10. Ornithogalum. 



F lovers umbelfed, capitate or corymbose. 



Bracts of 1-2 large membranous spathes 11. Allium. 



Bracts of 1-2 linear green leaves 12. Gagea. 



** Stem leafy. Flowers usually ebracteate, segments free. 



Flower subsolitary, small, white. Nectary transverse 13. Lloydia. 



Flower large drooping. Nectary obi ong 14. Fritillaria. 



Flower solitary, large. Nectary 0. Stigma sessile 14*. Tulipa. 



Flowers many, large. Nectary 0. Style long 14**. Lilium. 



TRIBE V. COLCHICE'-ZE. Styles free. Capsule septicidal. Testa various. 



Radicle distant from the hilum 15. Colchicum. 



SERIES 4. Rootsiock creeping. Fruit capsular. 

 TRIBE VI. VERA'TRE-flE. Styles free. Capsule septibidal. Testa thin, 



sometimes lax at each end. Rad.icle next the hilum 16. Tofieldia. 



TRIBE VII. NARTHE'CIEJE. Style very short. Capsule loculicidal. Testa 

 produced and filiform. Radicle next the hilum 17. Narthecium. 



1. PAR'IS, L. HERB PARIS. 



Rootstock stout. Stem simple, with 1 whorl of usually 3-9 leaves. Sepals 

 3-5, lanceolate. Petals as many, filiform. Stameiis 6-12, hypogynous ; 

 ;i;itlm:-s adnate, cells narrow; connective sometimes produced. Ovary 

 subglobose, 4-6-lobed and -celled ; styles 4-6, free, stigmas decurrent ; 

 cells 4- or more-ovuled. Berry indehiseent or 4-6-valved. Seeds few or 

 many, testa coriaceous or fleshy, albumen horny ; embryo terete, radicle 

 next the hilum. DISTRIB. Europe, N. Asia, Himalaya ; species 2-3. 

 ETYM. par, equal, from the 4-nary parts of P. quadrifolia. 



