664 



SYSTE1VIA.TIC BOTAIST, 



Leaves simple. Petals united by 



their claws into a tube . . Sfackhousiacece. 72. 

 Leaves compound. Petals distinct Staphyleacece. 73, 

 Calyx valvate. 

 Stamens opposite to the petals, iso- 



merous Rhamnacece. 75. 



Stamens twice, as many as the petals Amyridaceoe. 79. 

 B. Ovary inferior, or partially so. 

 a. Leaves loithout stipules, or with cirrhose stipules. 

 Placentas parietal. . . 

 Flowers completely unisexual. Monope- 



talous CucurUtacece. 99. 



Flowers hermaphrodite, or polygamous. 



Petals distinct Grossulariacece. 103. 



Placentas in the axis. 

 Flowers in umbels. 



Styles two ....... Umbelliferoe. 120. 



Styles three or more .... Araliacece. 121. 



Flowers not in umbels. 

 Carpel solitary. 



Petals strap-shaped, reflexed . * Alangiacece. 116. 

 Petals oblong. 



Leaves balsamic ..... Anucardiacece, 76. 



Leaves insipid. 

 Cotyledons convolute . . . Combretacece. 114. 

 Cotyledons flat ..... Haloragacece. 113. 



Carpels 2 or more, divaricating at the 

 aijex. 

 Leaves alternate. Herbs . . . Saxifragacecs. 85. 

 Leaves opposite. Shrubs . . . Jlydrangeacece. 86. 

 Carpels 2 or more, not divaricating, com- 

 bined. 

 Calyx valvate. . 

 Stamens opposite to the petals, iso- 



merous Rhamnacece. 75. 



Stamens alternate with the petals if 

 isomerous. i 



Albumen none. Ovules hori- 

 zontal, or ascending . . Onagraceoe. 112. 

 Albumen none. Ovules pendulous Haloragacece. 113. 

 Albumen abundant . . . Cornacece. 117 

 Calyx not valvate. 

 Stamens doubled down wards. Anthers 



with appendages. Leaves ribbed . Melastomacece. 111. 

 Stamens only curved. Anthers short. 



Leaves dotted .... Myrtacecs. 106. 

 Leaves not dotted. 

 Seeds very numerous, minute . Escalloniacew. 104. 



Seeds few Bruniacece. 119. 



h. Leaves with stipules. 

 Placentas parietal. 

 Stipules cirrhose. Monopetalous . . Cucurbiiacew. 99. 

 Stipules deciduous. Petals distinct . . Iloinaliacece. 101. 

 Placentas in the axis. 

 Stamens oi^posite to the petals, isomerous . Rhamnacece. 75. 

 Stamens if equal to the petals, alternate 

 with them. 

 Leaves opposite ,. ..... Rhizophoracece. 115. 



Leaves alternate Hamamelidacece. 118. 



Altliougli it generally happens that the Calyciflorae have di- 

 chlamydeous flowers, polypetalous corollas, and peri gy nous or 



