iv GENERAL KEY. 



Ovarv and pod 1-eelled, many-seeded ; seeds furnished with a downy 



tnft at one end SALICALES 114 



Ovary 1-2-f'elled, only one ovule in each cell; fruit 1-seeded. 



Parasitic on trees Loranthaceae in SANTALALES 127 



Trees or shrubs, not parasitic. 



Calyx regular, in the fertile Mowers succulent in fruit. 



URTICALES 124 

 Calyx none, or rudimentary and scale-like. 



Fertile flowers 2 or 3 at each scale of the catkin. 



FAGALES 119 

 Fertile flowers single under each scale; nutlets naked, 

 waxy-coated or drupe-like MYRICALES 118 



PETALS PRESENT. 



A. Stamens numerous, at least more than 10, and more tJum tirice the 

 sepals or lobes of the calyx. 

 1. Ovary superior, i. e., calyx entirely free and separate from the 

 pistil or pistils. 



Pistils numerous but cohering over each other in a solid mass on an 



elongated receptacle Magnoliaceae in RANALES 143 



Pistils numerous, separate, but concealed in a hollow receptacle. 

 Leaves opposite, entire, no stipules. 



Calyoanthaceae in RANALES 143 



Leaves alternate, with stipules Rosa in ROSALES 178 



Pistils several, immersed in hollows of the upper surface of a large 



top-shaped receptacle Nelumbo in RANALES 14.5 



Pistils more than one, separate, not enclosed in the receptacle. 



Stamens distinct, inserted on the calyx. .Rosaceae in ROSALES 167 



Stamens inserted on the receptacle RANALES 143 



Pistils several-lobed ; the ovaries united below the middle. 



Resedaceae in PAPAVERALES 154 

 Pistil one as to ovary; the styles or stigmas may be several. 

 Leaves punctate with transparent dots. 



Hypericaceae in PARIETALES 222 

 Leaves not punctate with transparent dots. 



Ovary simple, 1-celled, 2-ovuled. .. .Drupaceae in ROSALES 167 

 Ovary simple, 1-celled, with 1 parietal many-ovuled placenta. 



RANALES 143 

 Ovary compound, 1-celled, with a central placenta. 



PORTULACACEAE IN CHENOPODIALES 132 

 Ovary compound, 1-celled, with 2 or more parietal placentse. 



Calyx deciduous PAPAVERALES 154 



Calyx persistent, of 3-5 sepals. 



CiSTACEAE IN PARIETALES 222 

 Ovary compound, several-celled. 



Calyx valvate in the bud MAL VALES 220 



Calyx imbricated in the bud, persistent. 



Shrubs, stamens on the base of the petals. 



Theaceae in PARIETALES 222 

 Aquatic or marsh herbs ; ovaries many. 

 On 5 placentae in the axis. 



Sarraceniaceae IN SARRACENIALES 166 

 On the 8-30 partitions. 



Nymphaeaceae in RANALES 143 



2. Ovary more or less i)iferior, i. e., calyx more or less coherent with 

 the surface of the compound ovary. 



Ovary 8-30-celled; ovules many, on the partitions; aquatic. 



Nymphaeaceae in RANALES 143 



