CONSPECTUS. 69 



Group VIII. — Guttiferales. 



Ovary compound, with two or more cells, and the placentae axile. Calyx 

 free, imbricated. Corolla imbricated or twisted. Stamens indefinite, usually 

 monadelphous or polyadelphous. Embryo with little or no albumen. 



Order 18. — Dipterace^e. — Leaves simple, with large convolute stipules. 

 Flowers symmetrical. Petals equilateral. Calyx unequal, permanent, winged. 

 Anthers beaked. Fruit one-celled, one-seeded. 



Order 19. — Ternstromiace^e. — Leaves simple, alternate, no stipules or 

 very smalj ones. Flowers symmetrical. Petals equilateral. Anthers ver- 

 satile. Seeds few or single. Stigmas on a long style. 



Order 20. — Clusiace^e. — Leaves simple, opposite, exstipulate. Flowers 

 symmetrical. Petals equilateral. Anthers adnate, beakless. Seeds few or 

 single. Stigmas sessile, radiating. 



Order 21. — Hypericace^e. — Petals oblique, glandular. Seeds numerous, 

 naked. Styles long, distinct. 



Group IX. — Silenales. 



Ovary compound, one-celled, with a free central placenta. Calyx free 

 or nearly so. Embryo coiled round a little mealy albumen, and more than 

 one carpel combined into a compound fruit. 



Order 22. — Caryophyllaceje. — Calyx and corolla usually present, sym- 

 metrical. Ovules, amphitropal. Leaves opposite, exstipulate. 



Group X. — MalvaLes. 



Ovary compound and many-celled, with the placentae axile. Calyx free, 

 with a valvate aestivation. Corolla imbricated or twisted. Stamens indefi- 

 nite, monadelphous, or polyadelphous. Embryo with little or no albumen. 



Order 23. — Sterculiace^e. — Stamens columnar, all perfect. Anthers 

 2-celled, turned outwards. 



Order 24. — ByttneracejE. — Stamens monadelphous, usually sterile. An- 

 thers 2-celled, turned inwards. 



Order 25. — Malvaceae. — Stamens columnar, all perfect. Anthers 

 1-celled, turned inwards. 



Group XI. — Aurantiacales. 



Ovary compound, with two or more cells, and the placentae axile. Calyx 

 free, imbricate in aestivation. Stamens indefinite, or twice as many as the 

 petals, mostly monadelphous. Embryo with little albumen. 



Order 26. — Aurantiace^e. — Fruit consolidated, succulent, indehiscent. 

 Petals imbricated. Stamens free, or nearly so. ' Leaves dotted. 



Order 27. — Amyridace.e. — Fruit consolidated, dry, hard, somewhat val- 

 vular. Petals valvate. Stamens free. Leaves usually dotted. 



Order 28. — Cedrelace.e. — Fruit consolidated, valvular. Stamens mona- 

 delphous or free. Seeds numerous-vvinged. 



Order 29. — Meliace^e. — Fruit' consolidated, berried, or capsular. Sta- 

 mens monadelphous. Seeds few, not winged. Leaves not dotted. 



Group XII. — Rutales. 

 Ovary compound, with two or more cells ; or carpels several, and more or 



