15 



Seeds with an arillus, Dillenincea'c. 



Seeds without au arillus. Albumen fleshy and effen, Ranunculaceae. 



Seeds without an arillus. Albumen ruminate Anonaceae. 



* * Embryo nearly as long as the seed. 



X Fruit a pod, , Leguminoaae. 



X - X Fruit not a pod. 



Drupes 1-seeded, Anacardiaceae. 



Capsules many seeded, , Hyper icineae, 



X X Carpels wholly combined into a solid pistil, with usually 

 more placentas than one. 

 Placentas parietal, in distinct lines. 



Anthers versatile, juice watery, Capparideae, 



Anthers innate, juice milky, Papaoeraceae. 



Placentas parietal, spread over the liuing of the fruit, ,. Blxaceae. 



Placentas spread over the dissepiments ; waterplants, Nymphaeaceae. 



Placentas in the axis. 



Ovary 1-celled, with free central placenta, , Portulacaceae. 



Ovary many-celled. 



Calyx much imbricated. Petals equal in number to the sepals ; seeds few, Guttiferae. 



Calyx but little, or not, imbricated, tubular. Stamens perigynous, Lythrarieae. 



t t Olif/androus. Stamens fewer than 20. 

 Ovary inferior, or partially so. 



Leaves furnished with stipules. 



II Placentas parietal, , Samydeae. 



II II Placentas in the axis. 



Flowers completely unisexual. Herbs Begoniaceae. 



Flowers hermaphrodite or polygamous. 



Stamens equal to the petals and opposite to them Rhamnaceae. 



Stamens, ii equal to the petals, alternating with them. 



Leaves opposite, Jihizophoreae. 



Leaves alternate, , Hamamelideae. 



Leaves desiitute of stipules. 



II Placentas parietal ; flowers completely unisexual Cucurbitaceae. 



II II Placentas in the axis. 



A Flowers in umbels. 



Corolla valvate in the bud, Araliaceae. 



Corolla imbricate in the bud, ... Umbelliferae. 



A A Flowers not in umbels. 

 = Carpel solitary. 



Petals strap-shaped. Stamens distinct, Cornaceae (Alangieae.) 



Petals very narrow. Stamens adnate to them, Lorunthaceae. 



Petals oblong. Leaves insipid. 



Cotyledons convolute, Comhretaceae.- 



Cotyledons flat, Halorageae. 



Petals oblong. Leaves balsamic, Anacardiaceae. 



^ Carpels divaricating at the apex. 



Leaves alternate. Herbs, , Saxifrageae. 



^ Carpels parallel, combined. 



Calyx valvate. Petals opposite the stamens, Rhamnaceae. 



Calyx valvate. Petals alternate with the stamens or isomerous. 



Albumen none, Onagrarieae. 



Albumen copious Cornaceae. 



Calyx not valvate. 



Stamens doubled downwards. Leaves ribbed, Melastomaceae. 



Stamens only curved. Anthers short. 



Leaves dotted, Myrtaceae. 



Leaves not dotted. 



Flowers 4-merous. 



Ovules horizontal or ascending, Onagrarieae. 



Ovules pendulous, Halorageae. 



Flowers not 4-merous. Seeds many, Saxijragtae {Escallonieae.) 



Ovary wholly superior. 



Leaves furnished with stipules. 



+ Carpels distinct or solitary. 



Anthers with recurved valves, Berberideae. 



