134 



LESSONS IN BOTANY 



30 



25. Petals numerous, imbricate in the bud. * Watet' Lilies. 9 



25. Petals 5, imbricate in bud. Leaves tubular. * Water-pitchers. 10 



25. Petals 5, convolute in bud. Flowers of 2 sorts. * Rock-roses. 17 



26. Petals 5, imbricate in bud. * Purselanes. 22 



26. Petals 4, usually crumpled in bud. * Foppyivorts. 11 



27. Filaments united into a tube. Anthers 1-eelled. * Mallows. 24 



Sepals 2, persistent. Fruit a pyxis (§ 178). * Furselaties. 22 



Sepals 3 to 5.... 29. 



29. Petals imbricate in bud. Fruit a long pod. South. * Lindenb looms. 26 



29. Petals imbricate in bud. Fruit not a pod. * Roseioorts. 47 



29. Petals convolute in bud. Fruit compound. Loasads. 53 



Stamens opposite to the imbricated petals. Pistil one. * Berherids. 6 



SO. Stamens alternate with the petals, or more numerous. * Crowfoots. 1 



31. Stamens 6 (tetradynamous, § 108). Pods 2-celled. ♦ Crudfers. 13 



31. Stamens 4, or 8-12. Pod 1-celled. Capparids. 14 



32. Sepals and petals in 3's. Stamens 6. Small herbs. Limnanths. 36 



32. Sepals and petals in 4's. Stamens 8. Climbing. * Indian Soap worts. 41 



82. Sepals and petals in 5's 33. 



33. Stamens definitely 5 .... 34. 



33. Stamens indefinite, 3-80 36 



34. Stamens monadelphous. Stems climbmg. 



34. Stamens distinct 35. 



35. Stem climbing. Flowers greenish. *(J/ea;w!aw tjmg.) Order 



35. Stem erect. Flowers yellow. Turnerworts. 



S5. Stem erect. Flowers cyanic. * Sundews. 



36. Flowers perfect, very many and small. * Rock-roses. 



36. Fls. monoecious. Plants woolly, scurfy, or downy. Order 



37. Stamens 5, alternate with the 5 petals. Seeds many. * Flaxworts. 



87. Stamens 5, opposite to the 5 petals. Seed 1. {Lead-worts.) * Order 



87. Stamens 10 (twice as many as the petals), united at base. * Wood-sorrels. 



37. Stamens 6-24 (twice as many as the petals), distinct. * Houseleeks. 



38. Ovary 1-celled. Leaves radical, spinous. S. * Sundews. 



38. Ovary 3-5-celled. Leaves mostly radical, dotless. * Order 



38. Ovary 3-5-celled. Leaves cauline, dotted, pinnate. 



89. Style 1, but the carpels (§124)as many as the petals (2-6). 



39. Styles 2, carpels 2, fewer than the (5) petals 40. 



39. Styles 3-5 41. 



40. Seeds several. 

 Seeds two only. 

 41. Sepals 2, with 5 petals. 

 41. Sepals as many as the petals. 

 Ovaries many or few, rarely 1, always simple. 

 Ovary compound, 3-carpeled, open before ripe. 



* Fassionzcorts. 60 



105 



56 



19 



17 



112 



30 



80 



32 



56 



19 



73 



Euoworts. 37 



* Onagrads. 52 



40. 



* Saxifrages. 

 ^ Umbelworts. 



* Furselanes. 

 * Araliads. 



* Crowfoots. 

 Mignonettes, 



