ANALYSIS OF THE ORDERS. 133 



Ovary 4-celled. 



4-lobed ; the style risinfj from between the lobes Labiat^e. 



not lobcd. Style terminal Vebbenace^e. 



** Calyx more or less adherent to Vie ovary. 

 Anthers united. 



Anthers contorted. Vines climbing by tendrils CucunBiTACE^. 



etraight. Flowers in a raceme. Fruit a many-seeded 



capsule LOBELIACE^. 



Flowers in a raceme. Fruit a 1-4-seeded 



drupe RlTBiACE^. 



Flowers in a head. Fruit a dry achenium Composite. 



Anthers separate. Leaves opposite or whorled. 



Leaves connected by stipules or whorled Rubiace^. 



Stipules none. Stamens as many as the lobes of the corolla. . Capbifoliace^. 



fewer than the lobes of the corolla. . Valerianace^. 



Anthers separate. Leaves alternate. 

 Herbs. 



Corolla- lobes valvate in the bud. Capsule opening at the sides. CAMPANULACEiE. 



imbricate in bud. valvate Pni mttlace^. 



Flowers regular. Anthers opening by a terminal chink Vaccinie^. 



lengthwise STYitACACEiB. 



DiYisioiN^ III. Apetalous Exogenous Plants. 



Floral envelopes single, consisting of a calyx, or altogether 

 wanting. 



* Amentaceous trees or shrubs. Flowers monoeci,ous and dioecious. 

 t Sterile flowers only in aments. 



Leaves simple, stipulate. Involucre scaly. Seed entire Cupuliter^. 



pinnate, exstipulate. none. 4-lobed Juqlandace^. 



tt Both the sterile and fertile flowers in aments. 



Araent globose. Calyx none. 



Fruit 2-beaked, 2-valved, many-seeded. Sterile aments spiked.HAMAMELACE^. 



nut-like. 1-seeded, hairy. Ament single Platanace^. 



Aments oblong or linear. 



Ovary 1-celled. Drupe 1-seeded. Stipules none Mtricace^. 



Capsule 2-valved, many-seeded. Seed comose Salicac^. 



Ovary 2-celled. Fruit dry, angled or winged Betulace^. 



enclosed in the confluent berry -like calyx Morace^. 



** Flowers not in aments. 

 tt Calyx and corMa none. 



Ovaries 3^ united below. Flowers perfect, spiked Saururace^. 



Ovaries single. 



Involucre spathe-like. Styles 2. Leaves alternate, parted — Podostemace^. 



8-12-parted. 1. whorled, forked. Ceratophtllace.*:, 



- 4-5-toothed, cup-like, containing one fertile flower 



and several sterile ones, each reduced to a 



single stamen Ectphorbiacex. 



