72. 
71. 
71. 
26. 
79. 
70. 
. AMARANTHACER.- Calyx free. Stamens hypogynous. Fruit opening transversely. 
69. 
78. 
28. 
KEY TO THE NATURAL ORDERS. XX1X 
THYMELEACE®. Leaves without stipules. Stamens 8. 
PotyconAcex. Leaves with stipules sheathing the stem. 
tt Calyx not petal-like. Leaves with stipules. 
PouyconAcem. Stipules sheathing the stem. 
Rosace®. Stipules attached to the petiole. 
Urricacem. Stipules deciduous. 
ttt Calyx not petal-like. Leaves without stipules. 
§ Terrestrial herbs, 
SCLERANTHACEE. Calyx contracted round the fruit. 
CurnoropiAcez. Calyx free. Stamens perigynous. Fruit indehiscent. 
§§ Aquatic plants. 
CERATOPHYLLACER. Stamens 12 or more. 
HALoRAGACES. Stamens 1-8. 
ENDOGENS. 
Stem without distinct wood and bark. 
Leaves usually with parallel veins. 
Embryo with 1 cotyledon. 
Parts of the flower usually 3 or its multiples. 
87. 
88. 
98. 
98. 
89. 
90. 
90. 
91. 
92. 
95. 
94. 
96. 
97. 
95. 
102. 
Leaves with netted veins. 
Droscornaces. A climbing herb. Leaves alternate. 
TrinurAcez. An herb. Leaves in a terminal whorl. 
ALISMACEZ. Leaves radical. 
Leaves with parallel veins. 
* Flowers with distinct calyx and corolla. 
AIsMACE®. Ovaries several, superior. 
Hyprocuarmacex. Ovary 1, inferior. Diccious. 
Oxcumpacen. Ovary 1, inferior, Stamens and pistil united. 
** Flowers enclosed in a perianth. 
t Ovary inferior. 
Orcumaces. Flowers irregular. Stamens and pistil united, obscure. 
Irmacex. Flowers regular. Stamens 3. 
AMARYLLIDACE®. Flowers regular. Stamens 6. 
+t Ovary superior. Perianth petal-like. 
Liu1acex. Stamens 6. Anthers opening inwards. Style entire. 
Menanrnacem. Stamens6. Anthers opening outwards. Style divided into 3. 
Juncacex (Narthecium). Stamens 6. Perianth becoming dry and scale-like 
when withered, persistent. 
Buromacex. Stamens 9. Flowers in an umbel. 
Resriacex. Flowers in a compact scaly head, moncecious. 
+++ Ovary superior. Perianth dry and scale-like, 
- Juncacux. Fruit a capsule. Flowers in panicles or clusters, with a bract 
beneath. . ae 
Orontiacen. Fruita berry. Flowers arranged in a spike, springing from 
the leaf. 
Typnacea. Flowers in globular heads. Moncecious. 
