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Family 3, LYTHRABI2E, 



Calyx tube not adnate to the ovary. Sta- 

 mens inserted with the petals, and of definite 

 number; anthers introrse Ovary free, with 

 central placentae, compound of carpidia; ovules 

 GO ; style 1. 



1, Lythrum L. LOOSE-STRIFE. 



Calyx tubular, 8-12-costate ; limb 8-1 2-den- 

 tate; dentitions alternating in size. Petals 4-fi, 

 opposite the smaller dentitions of the calyx. 

 Stamens 8-12. Ovary 2-celled, covered by the 

 persistent calyx. Flowers purple. 



1. L. ALATUM Pursh. It. Tamalpais. Sum- 

 mer. 



ORDER 2. BOSIFLOK^E. Calyx lobes 

 imbricate in aestivation, as many as the per- 

 igynous petals. Ovaries several, in different 

 degrees of consolidation, in rare cases reduced 

 to a single one, the eccentric position of which 

 indicates the abortion of its fellows. 



Family 1, AMYGDALACEJE, 



Calyx free, 5-cleft, deciduous. Petals 5, 

 convolute in aestivation. Ovaries almost always 

 reduced to one, 1-celled, 2-ovulate. Fruit a 

 drupe, by abortion generally 1-seeded. Leaves 

 alternate, stipulate; stipules caducous. 



