POLYPETALAE. 59 
longer than the other two, Embryo 
curved. Cruciferae 
(6) Shrubs or trees. 14, 
14 (az) Petals valvate in aestivation. Albumen 
copious. Embryo straight. Olacineae. 
(6) Petals imbricate in aestivation. Albumen 
wanting or nearly so. Ovule 1. 
Anacardiaceae. 
15 (a2) Stamens 4-8, hypogynous. Anthers de- 
hiscing by pores. Flowers racemose. 
Ovules pendulous. Fruit indehiscent. _ 
Polygaleae. 
(0) Stamens 9-10, usually perigynous. 
Anthers dehiscing by longitudinal slits. 
Corolla papilionaceous. Leguminosae. 
16 (a) Ovule 1. Shrubs or trees. Disc present. 
Albumen scanty or wanting. 
Anacardiuceae. 
(6) Ovules 2. Ly; 
17 (a) Ovules ascending. Stamens 10, 5 of 
which are frequently imperfect, usually 
perigynous. Shrubs or trees. Flowers 
hermaphrodite. Petals5. Fruita folli- 
cular capsule. Seeds with an aril, ex- 
albuminous. Tropics. Connaraceae. 
(2) Ovules descending. Stamens 3-8, without 
staminodes, hypogynous. 18. 
