ANALYTICAL KEY. 15 



Not more than 10 stamens, or if so not more than twice the number of pagb 

 the sepals or divisions of the calyx. 

 -Calyx free from the two or more separate or nearly separate 

 ovaries. 

 Woody twiners, with dioecious flowers, separate stamens opposite as 



many petals, and iew pistils . . . MOONSEED F. 48 

 Woody twiners, with monoecious flowers, united stamens, and many 



pistils in a head, in fruit scattered in a spike MAGNOLIA F. 45 

 Trees, with dioecious or polygamous flowers, pinnate leaves, and few 



winged fruits QUASSIA F. 101 



Trees, with dioecious flowers, or herbs with perfect flowers : leaves 



pinnate, pellucid-dotted, strong-scented or aromatic RUE F. 98 

 Herbs or shrubs : leaves not pellucid-dotted : flowers chiefly 

 perfect — 

 Succulent or fleshy plants : pistils, petals, and sepals all equal in 



number ORPINE F. 170 



Not succulent nor fleshy thickened — 



Stamens inserted on the calyx:- leaves alternate, 



ROSE F. 141, & SAXIFRAGE F. 164 

 Stamens inserted on a disk adhering to bottom of the calyx: 

 leaves opposite, compound, 



(Staphylea) SOAPBERRY F. 108 

 Stamens inserted on the receptacle . . CROWFOOT F. 34 

 — h-Galyx free from the single (simple or compound) ovary ; i.e. ovary 

 superior. 

 Stamens of the same number as the petals and opposite them — 

 Anthers opening by uplifted valves : ovary simple, 1-celled, 



BARBERRY F. 49 

 Anthers opening lengthwise — 



Ovary 1-celled, 1-ovuled: styles 5 . . LEADWORT F. 271 

 Ovary 1-celled, with several ovules on a central placenta — 

 Style and stigma only one : calyx persistent, 



PRIMROSE F. 273 

 Style or stigma cleft or lobed . . PURSLANE F. 79 

 Ovary 5-celled, with several ovules in each cell, 



STERCULIA F. 90 

 Ovary 2-celled, with a pair of erect ovules in each cell, 



VINE F. 106 

 Ovary 2-4-celled, with one erect ovule in each cell, 



BUCKTHORN F. 104 

 Stamens when of the same number as the petals alternate with them, 

 sometimes more numerous, sometimes fewer — 

 Leaves punctate with pellucid and dark dots, opposite, entire : 



calyx persistent ... ST. JOHN'S-WORT F. 81 

 Leaves punctate with large pellucid dots : leaves alternate or 



compound RUE F. 98 



Leaves not punctate with pellucid dots — 



Ovary simple, as shown by the style, stigma, and single pari- 

 etal placenta PULSE F. 116 



Ovary seemingly simple, 1-celled, 1-seeded : style 1, 



(Fumaria) FUMITORY F. 57 

 Ovary compound, as shown by the number of cells, placentas, 

 styles, or stigmas — 

 With 2 parietal placentae, but 2-celled by a partition be- 

 tween : stamens tetradynamous MUSTARD F. 58 

 With 2 parietal placentae, and 1-celled: stamens 6, sepa- 

 rate, not tetradynamous . . CAPER F. 68 

 With 2 parietal placentae, and 1-celled : stamens 6 in 2 sets, 



FUMITORY F. 57 

 With 3 (rarely 6) parietal placentse, and 1-celled: 

 stamens not 6 — 

 Stamens inserted on the calyx, or with 5 clusters of 

 gland-tipped stamen-like bodies, 



SAXIFRAGE F. 164 

 Stamens on the long stalk of the ovary: tendril 



climbers . . PASSION-FLOWER F. 189 

 Stamens on the receptacle — 



Flower irregular: style 1 . . VIOLET F. 71 



