VI ANALYSIS. 



Section II. CALYCIFLOR^. 



STAMENS AND PETALS PERIGYNOUS. 



A. Calyx superior. 



(a) Stamens 5. Herbaceous plants with the exception of 



AraLa. 



Order 55. ARALiACEiE. Flowers polysamrus or perfect. Calyx obscure* 

 ly 5-ioothed. Fetab 5, spreading tStauiens 5, alternate with the petals; fili- 

 ments short. Ovary 2 or 3-c'-Jled with a solitary ovule in each cell. Styles 

 2. Shrubs, or herbaceous plants wiih compound leaves. 



Genera. Aralui, Appendix ,p. 324. Panax 107. 

 Order 54. Umbellifer m. Calyx a hering to the ovary, with the limb 5- 

 toothed, or ennre. Feials 5. Stamens 5. Ovary consisting of 2 united car^ 

 pels. Styles 2 Fruit marked with longitudinal ribs. Herbaceous plants, 

 usually with tistular stems. Leaves usually more or less divided. Flowers 

 in umbels. 



Genera. Hydroctyle p. 101. Crantzia p. 101. Sanicula p. 101. Eryn- 

 gium p, 102. iJelosciaduini p 102. Di^copieura p. 103. Lepocaulis p. 103. 

 Cicuta p. 103. Siuni p. lu3. Neumphyllum p. 104. Crypioisenia p. 104. 

 Zizia p. 104. Tliaspium p. 104. Ligusticum p 105. Archangelica p. 105, 

 Tiedmannia p. 1U5 Archemorap. Iu6. Daucus p. 106. Chaerophyllum p. 

 106. Osmorhiza p. 106. 



{h) Stamens 8. Herbaceous plants. 



Order 43. Melastomace^. Sepals 4, combined into an urceolate tube, 



adhering to the ovary. Feiuls 4, aitemaie with the lobes of the calyx. Sta- 

 mens 8. Styles dechncd- Capsule 4 celled, many seeded. Herbaceous 

 plants, with opposite, ribbed leaves. Flowers showy. 

 Genus. Rhexia p 85. 



Order 45. Rhizophokace^e. Sepals united into a 4^1obed calyx. Petals 

 inserted into the calyx and equalling the lobes in number. Stamens 8. Ova- 

 ry 1-2-celled. Fruit 1-celled, indeh:scent. A tree with entire leaves and ax* 

 illary flowers. 



Genus. Rhizophora p. 88. 



(c) Stamens varying in number, 



{[Cr Pomacpas and Cornaceae, see pase vii. 



Order 2. Saxif ragace^. Sepals 4-5, united or distinct. Petals as many 

 as the sefals. Stamens usually as many as the sepals, or double the number. 

 Ovary free or cohering with the calyx, 1-celled, with parietal placentae, or 

 several celled, with central placenrae. 



Sub-Order 1. Saxifrageje. Capsule usual'y beaked, opening along the 

 inrer suture, or with septicidal dehiscence. Herbaceous plants. 



Genera, Saxifraga p. 97 Boykinia p. 97. Heucheia p. 97. Astilbe p- 

 98. Chrysospleiiium p 98. Lepuropetalon p. 98. 



Sub-Order 2. Escalt.onteje. Calyx 5-cIeft, with subulate segments. Pet- 

 als 5, with incurved points. Stamens 5, with subulate filaments. Capsule 2- 

 celled A shrub with aifernate, serrulate leaves- Flowers white. 



Genus. Itea, A pp. 323. 



Sub-Order 3. Hydra.vgeje. Capsule dehiscing between the styles when 

 they are not united, otherwise the dehiscence is irregular. Shrubs and vines 

 with opposite leaves. 



Genera. Hydrangea p. 99. Decumaria p. 99. 



Sub-Order 4 Philadelphe^. jEsiivaiion convolute. Stamens 20-40- 

 Capsule with a Inculicidal dehiscence. Shrubs, with opposite, simple leaves. 

 Qenus. Philadelphus p. 99. 



