138 



LESSONS IN BOTANY. 



14. Herbs. Ovary with 5 styles and but 1 Beed. *Leaduorto. 80 



14. Herbs. Ovary with 1 style and many seeds. * Primworts. 78 



14. Shrubs, trees. Ovary 1-styled, 5-celled, 1-seeded. Soapivorts. 77 



15 Style none. Drupe 4-6-seeded. *Hoilyworts. 74 



IE. Style one. Drupe 4-seeded. Vervains. 88 



15. Style one. Capsule 3-5-cel!ed, many-seeded. * Heathworts. 73 



S6. Ovary 1, deeply 4-parted or 4-partible, forming 4 achenia. * Borragewortt. SK 



'.6. Ovaries 2, distinct, often covered by the stamens.... 18. 



.6. Ovary 1, compound 17. 



17. Ovary l-celled....20. 

 17. Ovary 2-6-celled.... 22. 



18. Stigmas united or connate. ..19. 



18. Stigmas distinct. Flowers minute, yellow * Bindweeds. 98 



19. Flower-bud with convolute pieces. * Dogbanes. 96 



19. Flower-bud with valvate pieces. . * Asclepiads. 97 

 20. Seeds several.... 21. 



20. Seed one. Corolla limb entire. * Order 101 



21. Leaves cleft and lobed. * HydrophyUs. 91 



* Loganiads. 



* Phlaxworts. 



* Bindweeds. 

 ' Borrageivorts. 



21. Lvs. or Ifts. entire. Fls. not pica.tc.*Genti<tnicnrts. 

 21. Leaves entire. Flowers spicatc. Ribworts. 



22. Leaves opposite . . . .23. 



22. Leaves alternate 24. 



23. Ovary 2-celled. 



23. Ovary 3-celled. Plants not twining , 



2*. Ovary 8-celled. Plants not twining. J 

 24. Ovary 2-celled, 2-6-seeded. Twining 

 24. Ovary 2-ceilcd, 4-seeded. Stem erect 

 24. Ovary 2-celled, many-seeded. . ..25. 

 25. Styles 2. 

 25. Style one. 

 2(>. Herbs Corolla 4-parted, dry, scarious. 



26. Shrubs 27. 



27. Corolla 5-parted, imbricate in bud. 

 27. Corolla 4-parted, valvate or none 

 28. Ovary deeply 4-partcd, forming 4 (or fewer) acbenia. 



28. Ovary entire, of one piece 30. 



29. Leaves opposite. Stems square. 

 29. Leaves alternate. Stems round. 



80. Ovary with 4 or fewer seeds. Leaves opposite. 



30. Ovary with many seeds, or more than 4 81. 



81. Trees or climbing shrubs. Seeds winged. * Biynonia,ls. 

 81. Trees. Seeds wingless. * Faulownia, in Order 



81. Erect shrubs. Seeds wingless. * ffeatkworls. 



81. Herbs.... 82. 



' HydrophyUs. &1 

 Nightshades. 94 

 ttibwort*. 79 



Jasmineworts. 

 * Oliveworts. 



* LaUatet. 

 * Borrarieworts. 

 I'ervuins. 



<J3 



