SYNOPTICAL KEY. xv ii 



Capsule woody, 5-celled, 5-seeded. Flowers 5-merous. Seeds winged. A leafless spinose shrub. 



Caxutia in Rosacea:. 

 Ovary 3-celled : fruit a large leathery 3-valved 1-seeded pod. Trees, with opposite digitate serrate 



leaves, uo stipules, and showy panicled irregular flowers. /Esculus in Sapindacac. 



(b.) Stamens clustered in fascicles or united into a tube. 



19. Hypericaceae, p. SO. Stamens numerous in 3 sets. Capsule 3-celled, many-seeded. Sepals 



and petals 5 : styles 3. Perennial herbs, with opposite entile punctate leaves, no stipules, 

 and yellow evmose flowers. 



20. Malvaceae, p. 81. Stamens numerous, united into a tube : anthers 1-celled. Carpels either 



in a ring, 1 - few-seeded and at length separating, or forming a 5 - 10-celled many-seeded 

 capsule. Calyx valvate : petals 5, united at base. Herbs or shrubs, with alternate 

 stipulate leaves. 



21. Sterculiaceae, p. 87. Stamens 5, united into a tube : anthers 2-celled. Capsule 4 - 5-celled, 



few-seeded. Flowers 5-merous : calyx imbricate : petals none. Shrub, with alternate 

 leaves, and showy flowers. 



++ ++ Fruit lobed or winged. Seeds 1 or 2 in the cells, pendulous : albumen little or none. 



23. Zygophyllaceae, p. 91. Capsule 5-10-lobed, -celled, and -seeded. Flowers 5-merous: 

 Btamens 10 : style 1, short : sepals mostly deciduous. Herbs or shrubs, with opposite 

 stipulate compound leaves (leaflets entire), and solitary flowers. 



21. Geraniaceae, p. 92. Capsule 5-parted, -celled, and -seeded. Flowers 5-merous : stamens 

 mostly 10 : styles coherent to an axis, at length separating from it. Herbs, with lobed 

 or compound toothed leaves, — opposite and stipulate, the carpels long-beaked, or alter- 

 nate and without stipules, the carpels not beaked. 



25. Rutaceae, p. 96. Fruit 2-eelIed, an orbicular samara or didymous capsule. Flowers 4 -me- 

 rous : style 1. Shrubs, with aromatic dotted alternate leaves, and no stipules. 



29. Sapindaceae, ln.'i. Fruit a double samara. Flowers dioecious or polygamous, often apeta- 



lous. Trees, with palmately lobed or pinnate opposite serrate leaves, anil no stipules. 

 Fruit a simple samara, usually 1-celled ami 1-seeded. Flowers 4-merous, perfect or dioecious : 

 petals often none : stamens often 2 : style 1. Trees, with opposite pinnate leaves, and 

 no stipules. Fkaxixis in Oleacece. 



• * * • Ovary compound, with central placenta;. Stamens upon a more or less perigynous disk. 

 Flowers mostly polygamous or dioecious. Calyx persistent or the limb deciduous. 

 Cells 1 -few-seeded. Seeds mostly erect or ascending and albuminous. 



20. Celastraceae, p. 98. Capsule 2 - 5-celled and -lobed. Flowers perfect, 4 5-merous: style 

 very short. Seeds anllate. Shrubs, with simple opposite piiinately veined leaves, ami 

 no stipules. 



27. Rhaninaceae, p. 99. Fruit berry- or drupe-like, or dry, 1 -4-eelleil. Calyx valvate, the I 



or 5 lobes alternate with as many stamens, deciduous: petals often none: style 2-4- 

 cleft or lobed. Shrubs, with simple alternate or opposite leaves, and small stipules. 



28. Vitaceae, p. 105. Fruit a 2-celled 2-4-seeded berry. Flowers 4 -5-merous: calyx mi- 



nute : petals valvate : the stamens opposite them. Woody vines, climbing by ten 

 drils : leaves alternate, lobed. 



30. Anacardiaceae, p. 109. Drupes 1-celled, 1-seeded. Flowers mostly 5-merous : stigmas 8. 



Shrubs, with milky resinous juice, alternate simple or compound leaves, and no stipules. 

 Albumen little or none. 

 Fruit a bladdery 3-lobed several-seeded capsule. Flowers perfect, 5-merous. Shrubs with oppo- 

 site compound stipulate leaves. Stai-iiyi.ea in Sapinda 



B. Stamens perigynous (upon the calyx), or epigynous. 



• Ovary superior or nearly so. (See last group.) 



-1- Carpels solitary or distinct- Seed very rarely albuminous. 



31. Leguminosae, p. 111. Carpel solitary becoming a legume. Flowers mostly irregular (papili- 



onaceous) : stamens 10 (rarely fewer), mostly monadelphous or diadclphous. Herbs, 

 shrubs, or trees, «itli alternate stipulate simple or compound leaves. 



32. Rosaceae, p. in I. impels one to many. In-coming a kenes or sometimes 1 2-seeded drupes 



(oi coherent with the calyx into a 2 several-celled pome). Flowers regular, mi 

 5-merous, or the stamens usually numerous. Herbs, shrubs, or trees, with alternate 

 mostly stipulate simple or compound leaves. 



33. Calycanthaceae, p. 190. Carpels numerous, becoming akenea within a hollow receptacle. 



Sepals, petaK, and stamens indefinite. Aromatic shrubs, with opposite entire |i 

 and do stipules. 



