POLYPETALAE. 107 
pore, rarely by 2 pores or by slits. 
Leaves usually with several longitudinal 
ribs. Connective usually appendaged. 
Ovary several-celled. Seeds exalbumin- 
ous. Melastomaceae. 
(2) Leaves opposite and glandular-dotted, or 
more frequently alternate. Anthers 
dehiscing by 2 longitudinal slits, rarely 
by 2 apical pores.* Stamens inserted 
upon an epigynous disc, which lines the 
calyx-tube. Seeds exalbuminous. 
Myrtaceae. 
196 (a) Leaves stipulate. 197. 
(0) Leaves exstipulate. 199. 
197 (a) Flowers moncecious, irregular. Sepals 
in the male flowers 2. Ovary several- 
celled, with numerous ovules in each 
cell. Leaves alternate, unequal-sided. 
Anthers adnate. Seeds exalbuminous. 
J C9 
Begoniaceae. , 
(6) Flowers hermaphrodite, regular. Sepals w/e . joy 
4-8. Ovary several-celled with 1-2 A 
ovules in each cell, or l-celled. 198. 
198 (a) Ovary 1-celled. Seeds albuminous. 
*So also some Styraceae, the petals of which are only 
very slightly coherent at the base. They have albumin- 
ous seeds and no disc. 
