ENDOGENOUS OR MONOCOTYLEDONOLS PLANTS. 483 



Stamens gynandrotis, 1 or 2 fertile. Flower irregular. Orciiidace^e. 



Stamens not gynandions. Flower irregular. 

 Fertile stamen 1, infeiior. Zisoiberace^ 



Fertile stamen 1, superior. Caxxace.e. 



Fertile stamens mostly 5. the sixth abortive. Musacla:. 



Stamens not gynandrous, regularly 3 or 6. 

 Anthers cxtrorsc. Stamens 3, before the sepals. Iridacicx. 



Anthcis introrsc, when 3 before the inner perianth. 



Anther-cells separated by a broad connective. Burmanxiace.*;. 



Anther-cells approximate or joined. 



Leaves not scurfy. Stems from bulbs. Amaryllidace^e. 



Leaves scurfy or woolly. No bulbs. 



Terrestrial. Stamens 3 or G. ILemodorace.t:. 



Mostly epiphytes. Stamens G. Broueliaceje. 



Group 6. Flowers dioecious, with a G-mcrous perianth adherent to the ovary. 

 Seeds with a minute embryo in hard albumen. Leaves ribbed and nctted- 

 veined, articulated with the stem. Dioscokeace;e. 



Group 7. Flowers dioecious or pci feet ; the regular perianth free from the ovary. 

 Styles or sessile stigmas distinct. Embryo minute in hard albumen. 

 Leaves more or less nctted-vcincd. Smilace^e. 



Group 8. Flowers perfect, not from a spathc, with the regular G-merous peri- 

 anth free from the ovary. Seeds anatropous, with albumen. 

 Perianth not glumaecous. Leaves parallel-veined. 



Anthers introrsc. Styles united into one. Lii.iace^e. 



Anthers cxtroisc. Styles mostly separate. Melaxtii acetic. 



Perianth glumaecous. Styles united into one. Juncaceje. 



Group 9. Flowers perfect, developed from a spathc, commonly somewhat ir- 

 regular, the 6-merous perianth free from the ovary. Seeds anatropous, with 

 albumen. Aquatics. ' • Poxtederiace^e. 



Group 10. Flowers with a double or imbricated perianth, free from the ovary ; 

 the exterior divisions (sepals) herbaceous or glumaecous ; the inner (pet- 

 als) petaloid, free from the one- to three-celled ovary. Seeds 2, 3, or many, 

 orthotropous ; the embryo at the extremity of the albumen farthest from the 

 hilum. 



Flowers perfect. Sepals herbaceous. Petals colored. Commelyxace/E. 



Flowers perfect, capitate. Sepals and bracts glumaecous. Xyridace^:. 



Flowers monoecious or dioecious, capitate. Eriocauloxaceje. 



Group 11. Flowers imbricated with glumaecous bracts (glumes), and disposed 

 in spikclcts ; the proper perianth none or rudimentary. Ovary one-celled, 

 onc-ovuled. Seeds anatropous. Embryo at the extremity of the albumen 

 next the hilum. 



Sheaths of the leaves closed. Glume or bract single. CtperacejE. 



Sheaths open. Glumes mostly in pairs. Gkamixk.e. 



