136 



LESSONS IN BOTANY 



60. Stamens on the torus, in several sets. Leaves dotted. * St. JoAnsworte. IS 

 60. Stamens on the calyx (perigynous, 83).... 61. 



61. Ovaries many, free, but inclosed. * Ca.lt/canths. 3 



61. Ovary compound, free in the bell-shaped calyx. * Loose-strifes. 51 



61. Ovary compound, adherent to the calyx 62. 



62. Leaves with a marginal vein. Myrtleblooiiis. 49 



62. Leaves with no marginal vein. * Saxifrages. 57 



63. Petals imbricate or va.vate in the bud..65. 

 53, Peuiis couVolute in the bud. . . .64. 



64. Anthers 1-celled, turned inwards. * Mallows. 24 



64. Anthers 2-celled, turned outwards. South. Silk-cottons. 25 



65. Ovaries distinct, many or few. . . .66. 



65. Ovary compound 67. 



66. Petals 6, valvate ( 129). Erect shrubs. *Papaws. 



66. Petals 3-9, imbricate. Trees or erect shrubs. * Uagnoliads. 



66. Petals 6-9, imbricate. Climbing shrubs. Moonseed*. 



67. Leaves dotted with pellucid dots. Orangewwts. 



67. Leaves dotless. Sepals valvate. Fls. small. *Lindcnbloom&. 



67. Leaves dotless. Sepals imbricate. Fls. large. *Ttaworts. 



68. Style 1, with many stigmas. Green, fleshy shrubs Cacti). * Indian Figs. 



68. StyleH several, or 1 with 1 stigma. Woody trees or sli rubs. * Jtoscworts. 47 



69. Pistils many, spicate on the slender torus. Climbers. Scfuzanths. 4 



69. Pistils 2-6, capitate on the short torus. Climbers. Moonneeds. 5 



69. Pistil 1 only. Stamens opposite the petals. * Merbtrids. 6 



70. Flowers 4-parted, with 8 stamens. * Onagrads. 52 



70. Flowers 4-parted, with 4 stamens. * Cornels. 65 



70. Flowers 5-parted, with 5, 10, or many stamens.. ..71. 



71. Ovary 5-carpeled, 5-styled. *Araliads. C4 



71. Ovary 2-carpeled. Leaves palmate-veined. * Currants. 55 



71. Ovary 2-carpeled. Leaves pinnate-veined. * Saxifrages. 57 



72. Leaves opposite. Stem climbing by tendrils. * Vinewoi-te. 44 



72. Leaves alternate. Jirect, or vine without tei\dri\i>.*J3uckthortis. 43 



78. Carpels 8-5.... 74. 



75. Carpels 1 or 2.... 7 5. 



74. Styles short. Leaves simple. *Sta/-trtfs. 42 



74. Styles long and slender. Leaves pinnate, serrate. * Soapworts. 41 



75. Styles 2, slender. Samara double. * Mapleworts. 40 



75. Style 1, short. (Drupe, or single samara.) * Order 99 



76. Filaments 10, united into a tube. Leaves bi-pinnate. Pride-of-liMiia. 29 

 /6. Filaments 5, distinct 77. 



7". Leaves pellucid-punctate. Rveworts. 87 



77. Leaves not dotted. Ovary 3-carpeled, 1-seeded. * Sumacs. 8f. 



77. Leaves not dotted. Ovary 3-carpeled, 8 seeded. Soapwrts. 41 



