KEY TO THE GENERA. 
Aquatic. Flowers unisexual. 2 Perianth multifid 
Aquatic. Flowers hermaphrodite, dimerous 
Aquatic. Flowers unisexual, all naked. Stamen 1 
Marshes. Flowers unisexual, Flowers dimerous . 
XXX. LYTHRARIEZ. 
Lythrum, p. 125. 
XXXI. MYRTACEZ. 
A. Corolla of 5 free petals, 
Ovary l-celled, 2-ovuled.  Calyx-lobes with setaceous tips 
Ovary 1-celled, 2—4-ovuled. Calyx-lobes with blunt tips . 
. Ceratophyllum, Vol. II., p. 362. 
. Meionectes, p. 123. 
. Callitriche, p. 124. 
. Gunnera, p. 124. 
. Calycothriz, p. 126. 
. Thryptomene, p. 127. 
Ovary 3-celled, oo-ovuled. Stamens very long and numerous. Calyx n in the bark Melaleuca, p. 128. 
Ovary 2-3-celled, oe-ovuled. Stamens very long and numerous. 
or forming terminal spikes . 
Ovary 3-5-celled, oc-ovuled. Stamens very H a numerous. 
dense spikes in the middle of the branches . 
Ovary 4-5-celled. Stamens short, numerous 
Ovary many-celled. Stamens short, numerous . . . 
Ovary 2-5-celled. Stamens short, 5-10. Flowers mdi; 
B. Petals and sepals combined into a deciduous pileus . . 
XXXII. CUCURBITACER, 
Sicyos, p. 142, 
XXXIII. PORTULACER. 
Petals forming a calyptra over the ovary 
Petals 5, free. Seeds 3 or more 
Petals 5, free. Seeds 1 or 2 
XXXIV. CRASSULACER. 
Tillea, p. 146. 
XXXV. Ficorpez. 
Petals numerous Ee EE 
Petals none mo ARE E o 
XXXVI. CUNONIACEX. 
Tree. Petals 4. Stamens 8. Ovary 2-celled . 
Shrub. Petals 6-10. Stamens œ. Ovary 2-celled , 
Small shrub. Petals 4. Stamens 8. Ovaries 4 . 
XXXVII. ESscALLONIEZ. 
Anopterus, p. 151. 
Pn folii 
Flowers axillary, 
. Kunzea, p. 130. 
. Callistemon, p. 130. 
, Leptospermum, p. 138. 
. Fabricia, p. 140. 
. Beckio, p. 141. 
. Eucalyptus, p. 131. 
. Calandrinia, p. 143. 
. Claytonia, p. 144. 
. Montia, p. 144. 
. Mesembryanthemum, p.146. 
. Tetragonia, p. 147. 
. Anodopetalum, 148. 
. Bauera, p. 149. 
. Tetracarpea, p. 150. 
2a 
