XIV ANALYTICAL KEY. 



Bracts herbaceous or none : no stipules. . CHENOPODIACE.E, 65 



Stipules scarious ILLECEBRACEJE, 63 



Fruit a more or less triangular akene : embryo curved. 



Flowers perfect, on jointed pedicels, involucrate. POLYGONACE^E, 66 

 Akene not triangular : embryo straight. 



Flowers unisexual : filaments incurved in bud : leaves 



simple URTICACE.&, 73 



Submerged : flowers axillary, naked : leaves sessile, 



filiformly dissected CERATOPHYLLACE.E, 72 



Carpels several and distinct, 1 to several-ovuled : calyx 



usually corolla-like. .... RANDNCULACE.E, 1 



2. As in (I), but ovary and fruit enclosed by the calyx and apparently inferior. 



Shrubs, with scurfy opposite entire leaves : flowers dio3cious : 



fruit baccate. EL^EAGNACE^E, 67 



Herbs : calyx corolla-like : fruit an akene. 



Leaves simple, opposite, entire, without stipules: flowers 



involucrate NYCTAGINACE^J, 62 



Leaves compound, alternate, stipulate ROSACES, 26 



3. Ovary and fruit superior, of 2 or more carpels. 



Fruit 2 to 4-celled, usually lobed : cells 1 to 2-ovuled. 

 Capsule 3-celled, 3-lobed : juice milky: mostly herbaceous. 



EUPHORBIACE,E, 70 



Fruit 4-celled, 4-lobed, compressed, indehiscent : styles 2 : 



small aquatic, with opposite entire leaves. CALLITRICHACE^E, 71 



Fruit fleshy, 3-celled, 3-lobed : shrubs with alternate simple 



leaves RHAMNACE^E, 21 



Fruit a double samara : trees with opposite pinnate leaves. SAPINDACE^E, 23 

 Cruciferous herb : pod small, obcompressed. Lepidium, in CRUCIFER^, 6 

 Fruit capsular, 1-celled or more, several-ovuled: low herbs 

 with opposite leaves. 



Capsule 3 to 5-celled : succulent FICOIDE.E, 35 



Capsule 1-celled : placentae central. 



Style and stigma 1 : stamens alternate with the sepals. 



Glaux, in PRIMULACE^J, 46 



Styles or stigmas 3 or more: stamens opposite the 

 sepals CARYOPHYLLACE^E, 11 



4. Ovary and fruit inferior. 



Fruit many-seeded: capsule ( inferior) 1-celled: leaves 



cordate SAXIFRAGACE^J, 27 



Fruit mostly 1 -seeded. 



Flowers perfect : fruit nut-like : herbs with alternate entire 



leaves SANTALACE-E, 69 



Dioecious parasites on trees, with opposite leaves and jointed 



stems : berry with glutinous pulp. . . . LORANTHACE^E, 68 

 Aquatic herbs, with opposite or verticillate leaves. . HALORAGE^E, 29 



