RUBIACE^E. 79 



3. Stamens seated upon the corolla, and alternating with Us 

 segments. 



Orel. 45. AQUIFOLIACE^. Cal. imbricated. Stigmas nearly 

 sessile. Ovary several-celled. Ovules solitary. Le. hard, spiny. 



Ord. 46. OLEACE^E. Fl. diandrous. Cal. and cor. sometimes 

 absent. Fruit dry and winged, or fleshy. Le. opposite. Shrubs 

 or Trees. 



Ord. 47. APOCYNACE^E. Cor. twisted. Stigma capitate, con- 

 tracted in the middle. Follicles 2. 



Ord. 49. POLEMONIACE^E. Cor. regular. Stigmas 3. Capsule 

 3-celled, 3-valved. 



Ord. 50. CONVOLVULACEJE. Cal. imbricated, often unequal. 

 Cor. with the limb plaited. Ovary 2 4-celled. Twining plants. 



Ord. 52. SOLANACE^E. Cal. 5-partite. Cor. with the limb 

 5-cleft. Anthers opening by pores or slits. Ovary 2 or spuriously 

 4-celled. Ovules numerous, placentation axillary. Inflorescence 

 mostly out of the axil. 



Ord. 48. GENTIAN ACE^E. Cor. twisted in aestivation. Ovary 

 1 2-celled, many-seeded ; placentation parietal, with the edge of 

 the valves turned inwards. Le. ribbed. 



Ord. 59. PLANTAGINACE^E. Sep., pet., and st. 4 each. Cor. 

 thin and membranous. Filaments very long. Stigma unilateral. 

 Flowers sometimes monoecious. 



4- Stamens seated upon the corolla, and opposite to its lobes. 



Ord. 57. PRIMULACE^. Cal. 4 7-cleft. Cor. 4 7-lobed, 

 sometimes wanting, and then the st. alternating with the cal. 

 segments. Ovary with a free central placenta. Stigma capitate. 



Ord. 58. PLUMB AGIN ACE^!. Cal. plaited, persistent. Cor. 

 deeply-cleft into 5 segments, with 5 st. seated at the base. 

 Styles 5. Ovary 1 -celled, with 1 ovule. Flowers capitate. 



GENERA OF COROLLIFLORJE. 



ORD. 35. CAPRIFOLIACE.E. 



1. SAMBUCUS. Cal. limb 5-cleft. Cor. rotate. St. 5. Stigmas 



3, sessile. Le. pinnate. 



2. VIBURNUM. Cal. 5-cleft. Cor. campanulate, or funnel-shaped, 



5-lobed. St. 5. Stigmas 3, sessile. Le. simple. 



3. LONICERA. Cal. 5-cleft. Cor. tubular, ringent, 5-cleft. St. 



5. Stigma capitate. Berry 1 3-celled. 



ORD. 36. RUBIACE^E. 



1. GALIUM. Cor. rotate, 4-cleft. St. 4. Fruit dry, 2-lobed. 



2. SHERARDIA. Cor. funnel-shaped. St. 4. Fruit dry, 2-lobed 



crowned with the limb of the calyx. 



