6 KEY TO THE FAMILIES 



Staminodia wanting. 



Stigmas 2-cleft; plants insectivorous, with 

 - . glandular-hispid leaves. 



54. Droseraceae 372 



Stigmas entire; land plants, not insectiv- 

 orous; leaves not glandular-liispid. 

 Styles in ours distinct. 



Sepals persistent, imited into a 

 tube; leaves not pellucid-dotted. 



84. Frankeniaceae 564 



Sepals distinct; leaves pellucid- 

 dotted. 



82. HYPERICACEAE 563 



Styles wholly united. 



Corolla regular or nearly so; sta- 

 mens 8 or more. 

 Sepals and petals 4; the latter 

 nob fugaceous. 



53. Capparidaceae 370 



Sepals and petals 3 or 5; the 

 latter fugaceous. 



85. CiSTACEAE 565 



Corolla irregular ; one petal spurred ; 

 stamens 5. 



86, ViOLACEAE 565 



Ovary several-celled. 



Stamens aduate to the gynoecium. 



106. ASCLEPIADACEAE 669 



Stamens not adnate to the g>-noecium. 



Stamens with wholly or partly united filaments. 



Anthers opening lengthwise; corolla regular. 



Leaves punctate; filaments polyadelphous, 



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



82. llypEUiCACEAE -663 

 Leaves not punctate; filaments monadel- 



phous, i. e., united in a single bundle 

 Styles unitied 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 compound; stamens 10-15. 



67. OXALIDACEAE 533 



Anthers openmg by pores; corolla irregular. 



73. POLYGALACEAE 540 



Stamens with distinct filaments. 

 Anthers united; flowers irregular. 



69. Balsaminaceae 536 



Anthers distinct: flowers regular or nearly so. 



Anthers opening by pores. 



Gjmoecium superior; fruit usually cap- 

 sular. 



Herbaceous saprophytes without 

 green leaves. 



97. MOXOTROPACEAE 638 



Herbs with green leaves and root- 

 stocks. 96. PyEOLACEAE 635 



Gynoecium inferior; fruit baccate or 

 drupaceous. 



99. VacCINTACE-\E 643 



Anthers opening by slits. 



Stigmas or styles distinct and cleft, 

 or foliaceous. 



74. EUPHOUBIACEAE 541 



Stigmas or styles distinct or united, 

 neither cleft nor foliaceous. 

 Style wanting; dwarf water plants. 



83. El^TINACE.\B 564 



Styles present; not water herbs. 

 Stamens 2. rarely 3. 



101. Oleaceae 655 



Stamens more than 3. 



Leaves punctate with trans- 

 lucent dots. 



72. Rtjtaceae 539 



Leaves without translucent dots. 



