SYNOPSIS OF THE ORDERS OF PLANTS CONTAINED IN VOLUME X. 
OF THE SILVA OF NORTH AMERICA. 
Crass TI. MONOCOTYLEDONOUS or ENDOGENOUS PLANTS. 
Stems with woody fibres distributed irregularly through them. Leaves mostly parallel-veined. Embryo with a single 
cotyledon. 
55. Liliaceze. Flowers perfect, 6-androus. Ovary superior, usually 3-celled. Ovules 2 or numerous. Fruit 
3-celled, capsular or baccate. 
56. Palmz. Flowers perfect, 6-androus. Ovary superior, 1 to 3-celled. Ovule solitary. Fruit 1 or rarely 2 or 
3-seeded, baccate or drupaceous. 
Crass II. GYMNOSPERMZS. Resinous trees or shrubs. 
Stems increasing in diameter by the annual addition of a layer of wood inside the bark. Flowers unisexual, naked. Stamens 
numerous. Ovules 2 or many not inclosed in an ovary. Cotyledons 2 or more. Leaves usually straight-veined, persistent or 
deciduous. 
57. Taxaceze. Flowers diecious or rarely monecious, axillary, solitary or umbellate. Ovule 1. Fruit surrounded 
by or inclosed in the enlarged fleshy aril-like disk of the flower. Cotyledons 2. 
58. Coniferee. Flowers monecious, usually solitary, terminal or axillary. Ovules 2 or many. Fruit a woody or 
rarely fleshy strobile. Cotyledons 2 or many. Leaves scale-like, linear or subulate, solitary or clustered. 
