KEY TO NATURAL ORDEllS, V 



22. Ochnncecf. — Shrubs or trees. Leaves alternate, simple, shininp^. 

 Plowers biscxvial, regular. Autliers linear. Ovary deeply lobed. 

 Fruit of 3-10 distinct 1 -seeded drupes. 



"23. Burseracciv. — Trees or shrubs with resinous or balsamic; juice. 

 Leaves altcruate, compound. Stamens 8-10. Ovary entire. Seeds 1 

 or few. 



2-1'. Mdiacece — Trees or shrubs. Leaves usually compound, alter- 

 nate- Flowers pauicled. Stamens 8-10, monadelphous (except in Cedreld 

 and Chluro-rylon). Ovary entire. 



25. ChaillKtiacece. — Trees or shrubs. Leaves simple, alternate. 

 Stipules present. Petals 2-cleft. Ovary entire. 



2G. OJacincce. — Trees or shrubs sometimes climbing. Leaves sim- 

 ple, alternate. No stipules. Petals free or connate usually valvato. 

 Fruit 1 -seeded. Seeds albuminous. 



27. Ilieineoe. —Trees or slirubs with alternate simple leaves. Petals 

 free, imbricate. Ovary 3-6-celled, Seeds albuminous. 



28. Celaslracece. — Trees or shrubs. Leaves simple, opposite or 

 alternate. Stamens 5 alternating with the petals or sometimes only 3. 

 Ovary more or less immersed in the disc, entire or lobed. 



29. Ehamnacece. — Trees or shrubs. Leaves simple, alternate or 

 opposite. Stamens opposite the petals and equal in number. Ovary 

 entire, often inferior. 



30. Ampelidece. — Shrubs or herbs with jointed stems, often scandent. 

 Leaves alternate, simple or compound. Calyx small. Petals valvate. 

 Stamens as many as petals and opposite to them, 



31. Sapindxcece. — Usually trees. Leaves alternate, compound or 

 simple. Flowers polygamous, often irregular. Stamens free, often ani- 

 somerous. 



32. SiihiacecE. — Trees or shrubs. Leaves alternate, simple or com- 

 pound. Stamens often unequal in size and opposite the petals. 



33. Anacardiaceca. — Trees often resinous. Leaves alternate, simple 

 or compound. Stipules 0. Flowers small. Ovary 1-celled (in Spondias 

 2-5-celled). Cells 1-ovuled. Fruit a drupe. 



C Calciflorse — Calyx gamosepalous. Stamens usually perigy- 

 noHsor epigynous, definite or indefinite. Ovary superior or inferior. 



34. Moringere — Trees. Leaves alternate, bi-tri-pinnate. Flowers 

 bisexual. Petals unequal. Stamens 10, 5 fertile opposite to the petals 

 alteimating Avith 5 sterde. Capsule 3-valved, pod-like. 



35. Connaracece. — Trees or shrubs. Leaves l-3-foHate or pinnate. 

 Flowers regular. Stamens definite. Carpels hirsute, 1-5, free. 



36. Legtcminosce. — Trees, shrubs or herbs. Leaves usually alternate, 

 compound. Flowers irregular (regular in Mimosece). Carpel 1, free. 



37. liosacece. — Trees, shrubs or herbs. Leaves alternate, simple or 

 compound. Flowers regular. Ovary of 1 or more free or combining 

 carpels, often adherent to the calyx-tube. 



