440 THE STORY OF PLANT LIFE 



Genus. Acer (Vol. II, p. 192). 

 Fan)il> 7. Hippocastanaceae. — Inflorescence racem- 

 ose ; flowers obliquely irregular; sepals 5; petals 4-5; 

 stamens 5-8 ; carpels (3) ; ovules 2 ; fruit a capsule. 

 Genus, ^scuhis. 

 Sub-Order 5. Balsaminine^. — Flowers heterochlamyd- 

 eous, irregular; anthers united. 



Family 8. Balsaminacese. — Flowers bisexual ; sepals 

 3 as a rule, posterior spurred; petals 5; stamens 5; carpels 

 (5) ; ovules indefinite ; fruit a capsule. 



Genus. Impatiens (Vol. II, p. 173). 



Order 16. Rhamnales. — Flowers cyclic, diplo- 

 chlamydeous, sometimes apetalous, haplostemonous, 

 with stamens opposite to the petals, regular; carpels 

 (5-2), each with 1-2 ascending ovules with 2 in- 

 teguments. 



Family. Rhamnaceae (Vol. II, p. 187).— Flowers 

 actinomorphic, in axillary cymes, 5-4-partite, perigynous or 

 epigynous ; sepals and petals 4-5 ; stamens 4-5, opposite 

 the petals ; carpels (5-2) ; ovary syncarpous, 2-lobed, 3- 

 locular ; fruit a 2-4 seeded drupe. 

 Tribe. Rhamftece. 



Genus. Rhamnus (Vol. II, p. 189). 



Order 17. Mal vales. — Flowers cyclic, hetero- 

 chlamydeous, rarely apetalous, hermaphrodite or 

 rarely unisexual, actinomorphic ; sepals and petals 

 usually 5 ; calyx always valvate ; stamens indefinite, 

 or in 2 whorls with the inner divided ; carpels (2 to 

 indefinite), each with i to indefinite anatropous 

 ovules. 



