SYNOPSIS OF THE ORDERS. 13 



77. Lentibulariaceae (p. 395). Aquatic or marsh herbs, with scapes or 

 scape-like peduncles, sometimes nearly leafless. Corolla personate and 

 spurred. Capsule globular, 1 -celled ; placentae central, free, many-seeded. 



78. Bignoniaceae (j). 398). Large-flowered trees or often climbing shrubs, 



with usually opposite simple or compound leaves. Capsule 2-ccllcd by a 

 partition between the 2 parietal placenta;. Seeds numerous, large, mostly 

 winged. 



79. Pedaliaccae (p. 399). Herbs, with opposite simple leaves. Ovary 1- 

 celled with two bilamellar parietal placenta;, or 2-4-celled by their union, 

 becoming drupaceous or capsular. Seeds few or many, wingless. 



80. Acauthaceae (p. 399). Herbs, with opposite simple leaves. Capsule 



2-celled, loculicidal, with each axile placenta bearing 2-10 flattish seeds. 



b. Cells of the ovary 1 -2-ovuled; herbs or low shrubs, with opposite leaves. 



81. Verbenaceae (p. 401). Ovary 2-4-celled, not lobed, the dry or drupa- 

 ceous fruit separating into 2 or 4 1-seeded nutlets (fruit 1-celled and 1- 

 seeded in Phryma). Style terminal. 



82. Labiatae (p. 403). Ovary deeply 4-lohed around the style, the lobes be- 



coming dry seed-like nutlets. Stems square ; aromatic, 

 t- -t- Corolla scarious and nerveless; flowers regular, 4-merous; style 1. 



83. Plantaginaceae (p. 422). Scapose herbs, with perfect or polygamo- 

 dicccious or monoecious flowers in 1 - many-flowered spikes. Fruit a cir- 

 cumscissile 2-celled capsule, with one or more peltate seeds in each cell, 

 or an achene. 



Division III. APETALOUS EXOGENS. The corolla wanting 

 (except in some Euphorbiaceas), and sometimes also the calyx. 



* 1. Ovary superior (though sometimes enclosed within the calyx), 1-celled 

 with a solitary basal ovule (several-celled in Phytolaccacea;) ; embryo 

 coiled or curved (nearly straight in Polygonacea;) in or about mealy albu- 

 men (albumen none in some Chenopodiaceje) ; herbs. 



<- Fruit the hardened or membranous closed base of the corolla-like perianth 

 enclosing a utricle. 



84. NyctaginaceaB {p. 425). Perianth tubiilar or funnelform. Stamens 

 hypogynous. Fruit ribbed or winged. Leaves opposite ; stipules none. 



+- -*- Fruit a utricle ; perianth mostly persistent, small, 4 - 5-lobed or -parted, 



or none. 



85. Ulecebraceae (p. 42G). Perianth herbaceous. Stamens perigynous- 

 Leaves opposite ; stipules scarious (none in Scleranthus). 



86. Amarantaceae (p. 427). Flowers sessile, bracteate, the bracts (usually 

 3) more or less dry and scarious, as well as the 3-5 distinct sepals. Sta- 

 mens 1-5, hypogynous. Utricle indehiscent or circumscissile. Embryo 

 annular. Leaves mostly alternate, entire ; stipules none. 



87. Chenopodiaceae (p. 430). Flowers sessile, not scarious-bracteate. 

 Sepals greenish or succulent, 5 or fewer, or none. Stamens 5 or fewer, 

 perigvnous or hypogynous. Embryo annular or spiral or couduplicate. 

 Leaves alternate ; stipules none. 



