X ANALYTICAL KEY. 



B. Stamens 10 or less, or at most not more than twice the petals. 



1. Ovary or ovaries superior or mainly so. 



* Pistils more than one, and distinct. 



Pistils same number as petals and as sepals : leaves fleshy. Crassulace^, 98 



Pistils not same number as petals or sepals. 



Stamens on the receptacle Ranunculace^, 1 



Stamens on the calyx. 



Stipules persistent : leaves alternate Rosacea, 26 



Stipules none or indistinct Saxifragace^, 27 



* * Pistil only one. 

 •»- Pistil simple, as shown by the single style, stigma, and cell. 

 Anthers opening by uplifted valves or transversely. . Berberidace^, 2 

 Anthers opening lengthwise or at the top. 

 Flowers irregular, or leaves twice pinnate : fruit a legume. Leguminos^, 25 



Plowers irregular : leaves simple Poltgalace.e, 9 



Flowers regular : leaves mostly stipulate : fruit a drupe 



or akene Rosacea, 26 



•»- +- Pistil compound, as shown by the number of cells or placentae, styles or 



stigmas. 

 Ovary 1 -celled, with (2 to 4, rarely more) parietal placentae. 

 Petals (long-clawed) and teeth of long-tubular calyx 4 



or 5. Frankexiace^, 10 



Petals and sepals or lobes of the cleft calyx 5. 



Corolla irregular : lower petal spurred. . . . Violace.e, 8 



Corolla regular or nearly so : styles or stigmas entire. Saxifragace^, 27 



Petals 4 : bract-like sepals 2 : flower irregular. . . Fumariace^, 5 



Petals and sepals each 4 : stamens 6. . . . Capparidace^, 7 



Ovary and pod 2-celled : 2 parietal placentae : stamens tetra- 



dynamous Crucifer^, 6 



Ovary and capsule 1-celled, several to many-seeded on a central placenta, 

 Truly so ; the partitions wanting or very incomplete. 



Sepals 2 : leaves often alternate. . . Portulacace^e, 12 



Sepals or calyx-lobes 5 or 4 : leaA^es all opposite. Carvophyllace^, 11 

 Apparently so ; the partitions at length vanishing. 



Stipules between the opposite leaves. . . . Elatinace^, 13 



No stipules. Lvtiirace^, 30 



Ovary and fruit 1-celled, with a single seed on a stalk from the base. 



Shrubs : styles or stigmas 3 : fruit drupe-like. Anacardiace^, 24 



Herbs : style at most 2-cleft : fruit a utricle. Illecebrace^, 63 



Ovary more than 1-celled : seeds attached to the axis, or base, or summit. 

 Flowers very irregular : ovary 2-celled : cells 1-seeded. Polygalace^, 9 

 Flowers regular or nearly so. 



No green foliage Monotropeae, etc., in Ericaceje, 45 



Foliage pellucid-punctate : strong-scented shrubs. . Rutace^, 19 

 Foliage not pellucid-punctate. 



Anthers opening by terminal chinks or pores. . . Ericaceje, 45 



