AETIFICIAL KET TO THE FAMILIES. 73 



Double Flowers. 



Plant living in water; flowers several inches across. . . . Water-lily, 81 

 Living on dry land. 



A. — Sheubs or trees. 



1. No flat green leaves ; their place taken by innumerable 



thorns. Flowers rich yellow Furze, 177 



2. Leaves pinnate ; stems usually prickly Rose, 203 



3. Leaves simple and feather-lobed. Branches armed 



with spines Hawthorn, 188 



4. Leaves simple and undivided. 



a. Leaves minute, closely imbricated Heather, 130 



h. Leaves covered with pellucid dots Myrtle, 279 



c. Leaves thick and very glossy ; flowers 2 to 4 inches 



across ; petals enduiing, red or white Camellia, 93 



d. Leaves thin, not glossy. 



Flowers white ; petals soon falling Cherry, 192 



Flowers yellow; leaves deeply serrate and acu- 

 minate Kerria, 204 



Flowers yellow ; leaves entire Dyers' Green-weed, 177, 



178 



B. — Herbaceous plants. 



» Leaves either compound, or deeply cut and divided. 



Leaves of 5 very smaU leaflets ; flowers yellow Lotus, 177, 180 



Leaves variously pinnatifid or fan-lobed. 



Juice of stem milky or orange-coloured. 



Flowers yellow Celandine, 96 



Flowers of nearly every colour except yellow Poppy, 97 



Juice of stem colourless and watery. 



o 1 / XI T s /. IP . 1 • , 1 [Daisy family (Dahlia, 



Calyx (anthodium) formed of numerous imbncated , / . . , , „ s 



, ■( African marigold, &c.), 



b^^°*« 1 290 



Calyx of not more than 5 sepals, or not present as a 



green cup. 



A. Flowers solitary, with a large involucre about 



an inch underneath Anemone, 89 



B. Flower solitary, without involucre ; leaves 



finely divided Ranunculus, 89 



c. Flower solitary, six to nine inches across P(Bony, 90 



D. Flower solitary ; leaves simply 3-lobed Hepatica, 89 



E. Flowers in spikes, racemes, or corymbs. 



a. One of the floral leaves spurred Larkspur, 90 



b. Many of the floral leaves spurred ; the spur 



curved i Columbine, 89 



t 



