ARTIFICIAL ANALYSIS OF THE NATURAL ORDERS. XXXV 



Division III. APETALOUS EXOGENOUS PLANTS. 



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



# Amentaceous trees or shrubs. Flowers tnonacious or dicEcious. 



-I- Sterile flowers only in aments. 



Leaves simple, stipulate. Involucre scaly. Seed entire. CUPULIFER^iE, 420 



Leaves piunate, exstipulate. Involucre none. Seed 4-lobed. JUGLANDACE^E, 418 



H- ■>- Both the sterile and fertile floxoers in aments. 



Aments globose. Calyx none. 



Fruit 2 be.aked, 2-valved, many-seeded. Sterile aments spiked. 



Fruit nut like, l-.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. 



HAMAMELACE.5:, 156 

 PLATANACE.E, 417 



MYRICACE.E. 426 



SALICACE.E, 429 



BETULACE.E, 428 



MORACE^, 414 



SAURURACE.i;, 397 



Fruit enclosed in the confluent berry -like calyx. 



« * Flowers not in aments. 

 ■*-■ Calyx and corolla none. 



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



Ovary single. 

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



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



Involucre 8 - 12-p.arted. 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. EUPHORBIACE^, 399 



^- t- Calyx herbaceous or corolla-like. 

 Ovaries more than one. 



Stamens inserted on the calyx. Leaves stipulate. 

 Stamens hypogyuous. 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-celIed, 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. PASSIFLORACE.E, 147 



Stems erect. Capsule circumscissile. CELOSIE^ 379 



rosacea;, 117 



ranunculace.e, 2 

 menispermacej!:, 15 



SAXIFRAGACE.E, 151 



LORANTHACE^, 397 



CORNACE.^;, 167 



SANTALACE.E, 395 



COMBRETACE^, 136 



ARISTOLOCIIIACE^, 371 



ONAGRACE^, 137 



HAMAMELACE^, 156 

 MYRTACE.E, 180 



