19 



Carpel with 2 additional abortive ones. Flowers not in heads, Valeria naceae. 



O O Carpels more than cue. 



Anthers openiug by pores, , Vacciniaceae. 



Anthers opening \xy slits. 



Stamens adnate to the corolla. 



With stipules. Leaves opposite Ruhiaceae 



Without stipules. Leaves opposite, , Cuprifoliacene- 



Without stipules. Leaves alternate, Ebenaceae. 



Stamens free from the corolla. 



Stigma witli an indusium, Goodeniaceae. 



Stigma without an iudusium. 



^ Stamens 2, connate with the style, StylicHeae. 



Stamens as many as corolla-lybes, free from the style, Gampaiiulaceae. 

 * * * Apetalous. 

 '^'t Achlamydoiis. 



O Leaves furnished with stiimles. 

 Ovules very numerous. 



Seeds winged, .Samamelideae {AUinqieae) . 



Seeds comose. Salicineae. 



Ovules solitary or very few. 



Flowers hermaphrodite. Stamens unilateral, Chloranthaceae. 



Flowers unisexual. 



Carpels solitary. Ovule erect, Mi/ricacnae. 



Carpels triple, Euphorbiaceae. 



O O Leaves destitute of stipules. 



Ovules very numerous, Podostemaceae, 



Ovules solitary or very few. 



Flower hermaphrodite. 



Embryo in vitellus, Pipernceae. 



Embryo without vitellus, Oleaceae. 



Flowers unisexual. 



Flowers naked. Carpels single, Myricaceae, 



Flowers in an involucre. Anther-valves slit, Mouimiaceae. 



t t Monoch III mt/deous. 



. Ovanj inferior, or partial!;/ so. 



O Lea es JurnisUed with stipules. 



Flowers hermaphrodite, AristoJochiaceae. 



Flowers unisexual. Fiuit in a cup, Cupuliferae. 



Flowers unisexual. Fruit naked. 



Fruit many-sneded, Begoniaceae. 



Fruit one-seeded, Artocaipeae. 



O O Leaves without stipules. 

 Flowers unisexual, amentaceous. 



Leaves simple, Myricaceae. 



Leaves compound, : , Juglandaceae. 



Flowers unisexual, not amentaceous. 



Seeds immersed in pulp, Cucurbifaceae. 



Seeds dry, numerous, parietal, Datiscaceae. 



Flowers hermaphrodite or polygamous. 



Leaves with transparent dots. Myrtaceae. 



Leaves without dots. 



Ovary 3-6-celled, polyspermous, , Aristolochieae. 



Ovary 1-celled. Anther-valves slit. 



Embryo straight, cotyledons convolute, Combretaceae. 



Embryo straight, cotyledons fiat. 



Albumen none, Halorageae. 



Albumen fleshy, Sjntalaceae. 



Embryo curved ; cotyledons flat, Saholaceae. 



Ovary l-celled, Lornnthaceae. 



Ovary with more cells than one, but neither 3 nor 6. Embryo &ixa.ig}xt,L[alorageae. 

 Ocary superior. 



Leaves furnished with siipulea. 

 Flowers hermaphrodite. 



Sepals 2, , , , Portulacaceae. 



Sepals more than 2. 



