ARTIFICIAL ANALYSIS OP THE NATURAL ORDERS. XXXV 



DIVISION in. APETALOUS EXOGENOUS PLANTS. 

 Floral envelopes single, consisting of a calyx only, or altogether wanting. 



* Amentaceous trees or shrubs. Flowers monoecious or dioecious. 



i- Sterile flowers only in aments. 



Leaves simple, stipulate. Involucre scaly. Seed entire. CUPULIFERJE, 420 



Leaves pinnate, exstipulate. Involucre none. Seed 4-lobed. JUGLA.NDACE.ffi, 418 



Both the sterile and fertile flowers in aments. 



Aments globose. Calyx none. 



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

 Fruit nut-like, 1-seeded, hairy. Aments single. 

 Aments oblong or linear. 

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



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

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



Fruit enclosed in the 'confluent berry-like calyx. 



* * Flowers not in aments, 

 >- Calyx and corolla none. 



HAMAMELACEJ2, 156 

 PLATANACE^E, 417 



MYRICACE^!, 426 



SALICACE.ffi, 429 



BETULACE^l, 428 



MORACKE, 414 



SAURURACE^E, 397 



Ovaries 3-4, united below. Flowers perfect, spiked. 



Ovary single. ~j 



Involucre none. Capsule 4-celled. Aquatic. CALLITRICHACEJE, 398 



Involucre spathe-like. Styles 2. Leaves alternate, parted. PODOSTEMACE^E, 399 



Involucre 8 - 12-parted. Style one. Leaves whorled, forked. CERATOPHYLLACE^E, 398 

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



several sterile ones, each reduced to a single stamen. EUPHORBIACRiE, 399 



i- -i- Calyx herbaceous or coroUa-like. 

 Ovaries more than one. 



Stamens inserted on the calyx. Leaves stipulate. 

 Stamens hypogynous. Stipules none. 

 Embryo minute. 

 Embryo and seeds large, curved. 

 Ovary solitary. 

 Calyx adherent to the ovary. 

 Ovary 1-celled. 



Fruit a 2-valved, many-seeded capsule. 

 Fruit indehiscent, 1-seeded. 

 Anthers (and stigma) sessile. Tree parasites. 

 Anthers on filaments. 



Drupe berry-like. Stigma decurrent. 

 Drupe dry. Albumen copious. 

 Drupe dry. Albumen none. 

 Ovary 6-celled, many-ovuled. Calyx tubular. 

 Ovary 4-celled, many-ovuled. Stigma capitate. ) 



Ovary 3-celled, 3-ovuled. Stigmas 3. Leaves dissected. ) 

 Ovary 2 - 3-celled. Capsule 2-valved. Leaves alternate. 



Fruit a berry. Leaves opposite. 

 Calyx free from the ovary. 

 Ovary 1-celled. 

 Ovules and seeds numerous. 

 Vines. Fruit berry-like. 

 Stems erect. Capsule circumsciesile. 



ROSACES, 117 



RANUNCULACE^;, 2 

 HENISPERMACILE, 15 



SAXIFRAGACE^E, 151 

 LORANTHACE^E, 397 



CORNACEJ5, 167 



SANTALACE^E, 395 



COMBRETACE^l, 136 



ARISTOLOCHIACE^l, 371 



ONAGRACE^!, 137 



HAMAMELACE^!, 156 

 MYRTACEJE, 130 



PASSIFLORACKE, 14T 

 CELOSLELE, 379 



