14 



ANALYTICAL KEY 



Leaves without stellate hairs ; emhryo curved or 

 coiled. 

 Stipules scarious 

 Stipules none. 

 Leaves opposite. 

 Plant fleshy 

 Not fleshy. 

 Flowers in heads or spikes, these often 



panicled ; anthers 1-celled Amaranthacbae, 371 

 Flowers sessile in forks of 

 inflorescence 

 Leaves alternate. 

 Flowers and bracts scarious 

 Flowers small, chiefly greenish ; no scarious 



bracts Chenopodiaceae, 



/. Shrubs or trees. 



Leaves small, linear or scale-like ; low heath-like shrubs 



Emfetraceab, 551 

 Leaves oblong to orbicular ; never heath-like. 

 Leaves opposite. 

 Fruit ;j-celled, not winged 

 Fruit 2-celled, a double samara 

 Fruit 1-celled, a single samara 

 Leaves alternate. 

 Ovary 3-celled 

 Ovary 1-2-oelled. 

 Styles and stigmas 2 

 Style and stigma 1. 

 Anthers opening lengthwise 

 Anthers opening jDy uplifted lids 

 d. Ovary inferior or so closely and permanently invested by the 

 calyx as to appear so. 

 Parasites on the branches of trees 

 Aquatic herbs 

 Terrestrial. 

 Herbs with calyx colored like a corolla. 

 Leaves opposite, simple 

 Leaves alternate, pinnate 

 Leaves alternate, simple 

 Shrubs or trees. 

 Leaves scurfy 

 Leaves not scurfy, opposite 

 Leaves not scurfy, alternate. 

 Style 1, stigmatic down one side; flowers solitary, in 



pairs, or in umbel-like clusters Nysaa, 625 



Style 1, short; stigma terminal ; flowers racemose Pyrularia, 350 

 Styles 2 Hamamelidaceae, 452 



. Ovary or its cells containing many ovules I. 

 I. Calyx none ; ovary and fruit naked. 



Aquatic herb Podostemaceae, 441 



Tree or shrub Hamamelidaceae, 452 



« Calyx present m. 

 m. Ovary superior. 



Ii/Lecebbaceae, 376 



Salicornia, 369 



branching 

 Illecebraceae, 376 



Amaranthaceae, 371 



,364 



Rhamnackab, 560 

 Aceraceae, 557 



Of.EACEAE, 650 



Rhamnaceae, .560 



Urticaceae, 344 



Thymelaeaceae, 589 

 Laubaceae, 413 



Loeanthaceae, 351 

 Haloeagidaceae, 602 



Ntctaginaceae, 375 



Sanguisorba, 494 



Oomandra, 350 



Elaeagnaceae, 590 

 Nestronia, 350 



