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 moncecious or diczcious. 



■¥- Sterile flowers only in aments. 



Leaves simple, stipulate. InTolucre scaly. Seed entire. CUPDLIFERiE, 420 



Leaves pinnate, exstipulate. Involucre none. Seed 4-lobed. 



JUQLANDACEiE, 418 



•t- H- 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-secded. Stipules none. 



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



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



Fruit enclosed in the confluent berry-like calyx. 



» * Flowers not in aments. 

 ■>~ Calijx and corolla none. 



UAMAMELACEiE, 166 

 I'LATANACE^, 417 



MYRICACE^, 426 

 SALICACE^, 429 

 BETULACE^, 428 

 HORACES, 414 



SAURURACEJE, 397 



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



Ovary single. 

 Involucre none. Capsule 4-celled. Aquatic. CALLITRICIIACE^, 398 



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



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

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



several sterile ones, each reduced to a single stamen. EUPHORBIACE-S;, 399 



^- ^- Calyx herbaceous or corolla-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-eelled. 

 Fruit a 2-Talved, many-seeded capsule. 

 Fruit indehiscent, 1-seeded. 

 Anthers (and stigma) sessile. Tree parasites. 

 Anthers on filaments. 



Drupe berry-like. Stigma dccurrent. 

 Drupe dry. Albumen copious. 

 Drupe dry. Albumen none. 

 Ovary 6-celleJ, manyovuled. Calyx tubular. 

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



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

 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 circumscissile. 



ROSACEiE, 117 



RANUNCULACE^, 2 

 MENISPERMACE^, 15 



SAXIFRAGACE.D, 151 



LORANTHACE^, 397 



CORNACE^, 167 



SANTALACE.E, 395 



COMBRETACEiE, 136 



ARISTOLOCIIIACEiE, 371 



ONAGRACE^, 137 



HAMAMELACE^, 156 

 MYRTACE.^, 130 



PASSIFLORACRU, 147 

 CELOSma;, 379 



