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4. Malvastrum Gray {Sphceralcea St. Hilaire). 



Ovary co-celled; cells 2-ovulate. Styles as 

 many as cells, united at base; stigmas capi- 

 tate. Fruit a loculicidal capsule, at length 

 also septicidal. 



1. M. Thueberi Gray, Petals pale. — ^. 

 San Mateo. Niles. Summer. 



5. Sida Knnth. 



Ovary oo-celled; cells 1-ovulate. Styles as 

 many as cells, united at base; stigmas capi- 

 tate. Fruit a oo-seeded capsule. Seeds pen- 

 dulous from the apex. — It. 



1. S.- H E D E R A c E A Torr. Flowers pale. 

 Common. Summer. 



Order 3. GERANIALES. Calyx free, im- 

 bricated in aestivation. Petals 5, contorted or 

 convolute in aestivation ; stamens liypogynous; 

 definite. Ovary the compound of a definite 

 number of carpidia. 



Family 1. GERANIACE^. 



Sepals 5. Petals 5; liypogynous; alternate 

 with the sepals ; stamens 10. Carpidia 5, 

 verticillate round a columnar axis (gynophore). 

 Styles distinct at base; connate towards their 

 apex. Carpidia 5, 2-ovulate, 1-seeded, vent- 

 rally dehiscent. Leaves stipulate. 



