KEY TO THE FAMILIES 



Staminodia wanting. 



Stigmas 2-cleft; plants insectivorous, with 

 glandular-hispid leaves. 



54. Droser.vce.\E 372 



Stigmas entire; land plants, not insectiv- 

 orous; leaves not glandular-hispid. 

 Styles In ours distinct. 



Sepals persistent, united into a 

 tube; leaves not pellucid-dotted. 



84. Frankeniaceae 564 

 Sepals distinct; leaves pellucid- 

 dotted. 



82. Hypericaceae 563 



Stj'les wholly united. 



Corolla regular or nearly so; sta- 

 mens 8 or more. 

 Sepals and petals 4; the latter 

 not fugaceous. 



53. Capparidaceae 370 



Sepals and petals 3 or 5; the 

 latter fugaceous. 



85. Oistaceae 565 

 Corolla irregular; one petal spurred ; 



stamens 5. 



86. VlOL-ACEAE 565 



Ovary several-celled. 



Stamens adnate to the gynoecium. 



106. ASCLEPLADACEAE 669 



stamens not adnate to the gjTioecium. 



Stamens with wholly or partly united filaments. 



Anthers opening lengthwise; corolla regular. 



Leaves punctate; filaments polyadelphous, 



i. e., united in three or more bundles. 



82. Hypericaceae 563 

 Leaves not punctate; filaments monadel- 



plious, i. ('., united in a single bundle 

 Styles united around a central column 

 from which they break at matur- 

 ity. 66. Geraniaceae 530 

 Styles distinct or permanently and 

 partly united; the tips and the 

 stigmas free. 

 Leaves simple; stamens 5. 



68. LiNACEAE 534 



Leaves compoimd; stamens 10-15. 



67. OXALID.ACEAE 533 



Anthers opening by pores; corolla irregular. 



73. POLYGALu\CEAE 540 



Stamens with distinct filaments. 

 Anthers united ; flowers irregular. 



69. Bausaminaceae 536 

 Anthers distinct; flowers regular or nearly so. 



Anthers opening by pores. 



Gynoecium superior; fruit usually cap- 

 sular. 

 Herbaceous saprophj-tes without 

 green leaves. 



97. MO.NOTROPACEAE 638 



Herbs with green leaves and root- 

 stocks. 96. Pyrol-VCEAE 635 

 Gynoecium inferior; fruit baccate or 

 drupaceous. 



99. Vacciniaceae 643 



Anthers opening by sUts. 



Stigmas or styles distinct and cleft, 

 or foliaceous. 



74. Euphorbiaceae 541 

 Stigmas or styles distinct or united, 



neither cleft nor foliaceous. 

 Style wantmg; dwarf water plants. 



83. Elatinaceae 564 

 Styles present; not water herbs. 



Stamens 2. rarely 3. 



101. Oleaceae 655 



Stamens more than 3. 



Leaves punctate with trans- 

 lucent dots. 



72. kutaceae 539 



Leaves without translucent dots. 



