450 THE STORY OF PLANT LIFE 



or o ; stamens 2 ; carpels (2) ; ovules 2, anatropous ; fruit 

 a capsule, berry, or drupe. 

 Sub-Family. Oleoideae. 

 Tribe i. Fraxinece. 



Genus. Fraxinus (Introductory Vol., p. 156). 

 Tribe 2. Syringece. 



Genus. Syringa. 

 Tribe 3. Oleece. 



Genus. Ligustrum (Vol. Ill, p. 98). 

 Sub-Order 2. Gentianine^. — Stamens and petals 

 equal ; ovary superior, i to 2-locular : ovules indefinite, with 

 I integument on parietal or axile placentae. 



Family 2. Gentianaceae (Introductory Vol., p. 164; 

 Vol. Ill, p. 103). — Flowers in cymes, 4-5-partite, sym- 

 petalous, bisexual, actinomorphic ; sepals free or united ; 

 stamens and petals equal ; carpels (2) ; ovary incompletely 

 2-locular ; ovules indefinite ; placentae parietal ; fruit a 

 2-valved capsule. 



Sub-Family i. Gentianoideae. 

 Tribe i. ChironiecB. 



Genera. Blacksto7iia (= Chlora) (Vol. Ill, p. 

 105), Microcala^ Cicendia, Centaurium. 

 Tribe 2. Sweriiece. 



Ge?ius. Gentiana (Vol. Ill, p. 107). 

 Sub-Family 2. Menyanthoideae. 



Genera. Menyanthes (Introductory Vol., p. 165), 



Viilarsia. 



Family 3. Apocynaceae (Vol. Ill, p. 100). — Calyx 



and corolla 5-cleft, corolla twisted in bud ; stamens 4-5 ; 



carpels usually 2, free below; styles united; fruit of 2 



follicles, etc. 



Sub-Family. Plumerioideae. 

 Tribe. Plumeriece. 



Genus. Vinca (Vol. Ill, p. loi). 



