(211): 
mens l-seriate, more than 5. Ovary generally 
3-celled; cells 1-2 ovulate. 
1. Esculus L. Buckeye. 
Polygamous. Calyx irregular, gamosepalous. 
Petals unguiculate, 5, or by abortion of the 
anterior one, 4. Stamens 6-8, filaments as- 
cending. Cells of ovary 2-ovulate. Fruit a 
capsule, generally by abortion 1-celled, 1-seed- 
ed. Leaves palmate, deciduous.— ®. 
1. A. Catirornica Nutt. Petals white, 
tinged with red and yellow.—Common. Sum- 
mer. 
The seeds contain an active principle not yet 
sufficiently examined. 
2. Acer Monch. Mapte. 
Polygamous. Petals as many as sepals, in- 
serted into the margin of the lobate, hypogy- 
nous disc. Stamens 8, inserted with the petals. 
Ovary 2-celled, 2-lobed; cells 2-ovulate. Fruit 
a 2-seeded samara.— ». Leaves opposite, pal- 
mately lobed, deciduous. 
1. A. MAcRoPHYLLUM Pursh. Flowers yel- 
low.—San Mateo. Marin County. Spring. 
8. Negundo Moench. Box Etpzr. 
Polygamous. Dicecious. Petals 0. ¢: 
stamens 4, sometimes 5, opposite to the calyx 
teeth.  : ovary 2-celled, 2-lobed; cells 2-ovu- 
