CLASSES, DIVISIONS, AND ORDERS. 



*** Corolla hypogynous. Stam. epipetalous. 

 t Cor. nearly or quite regular. 



48. AquifoliacecB. Sep. free. Cor. 4 5-parted. Stam. 

 as many as and alternate with cor. -lobes. An evergreen 



tree 282 



49. OZeacea. Cal. 4-fid, or 0. Cor. 4-cleft, or 0. Stam. 



2. Anth. attached by back. Trees and shrubs ........ 283 



50. Apocynacece. Cal. 4 5-fid. Cor. 4 o-lobed. Stara. 

 4 5. Anth. attached by base. Ovaries 2, 1-celled. Fr. 



2 follicles. Prostrate. Herbaceous 283 



51. Gentianacea. Cal. 4 8-fid. Cor. 4 8-fid. Stam. 



4 8. Anth. versatile. Ovary 1-celled, of 2 carpels. . . . 284 



52. Polemoniacece. Cal. 5-parted. Cor. 5-lobed, regu- 

 lar. Stam. 5. Ovary 3-celled. Stig. 3-fid 289 



53. ConvolvulacecB. Sep. 5, free or connate. Cor. 5- 

 parted. Stam. 5. Ovary 2 4-celled. Stig. 2 289 



54. BoraginacecB. Cal. 5-parted. Cor. 5-parted. Stam. 

 5. Ovary of 2, 2-parted carpels ; each lobe 1-seeded. 

 Style from base of lobes, simple. L. alternate, rough, 



Fr. of 4 nutlets 291 



55. Solanacea. Cal. 5-parted. Cor. 5-parted. Stam. 5. 

 Ovary 2- or sub-4-celled, many-seeded. Fr. a berry or 

 capsule 298 



63. Plant aginacece. Cal. 4-parted. Cor. 4-parted, 

 ecarious. Stam. 4. Ovary 2 4-celled. Caps, opening 

 transversely. (In Littorella the fl. are monoecious, fem.- 

 cal. 3-parted, cor. urceolate, stam. hypogynous.) 347 



tt Corolla more or less irregular. 



56. Orobanchacea. Cor. 2-lipped. Stam. 4, didyna- 

 mous. Ovary 1-celled. Caps. 2-valved, many-seeded. 

 Root-parasites 300 



57. Scrophulariacece. Cor. 2-lipped or personate or 

 nearly regular. Stam. didynamous or rarely 2 or 5. 

 Ovary 2-celled. Style terminal. Caps. 2-celled, many- 

 seeded ". . 30-1 



58. Labiata. Cor. 2-lipped or nearly regular. Stam. 

 didynamous or rarely 2 or 4. Ovary 4-lobed. Style 

 from between the lobes. Fr. of 1 4, small, nutlike, 1- 

 eeeded parts. L. opposite. Fl. cymose, in false whorls. . 321 



