CLASSIFICATION. 



(papilionaceaous) flowers. Corolla imbricate with the dorsal 

 petal (standard) exterior in bud, the other petals in pairs, 

 lowest pair (keel) often connate, Stamens 10 monadelphous, 

 or diadelphous 9 + 1, or 5 + 5, rarely the 10th altogether 

 absent, -very rarely stamens all free (Sophora). 



43. Papilionacese (p. 308). 



Order XII— MyrtaJes (allied to rlosales). 

 Trees, shrnbs or rarely herbs with opposite or whorled 

 simple exstipulate and usnally entire leaves. Fls. regular or 

 (in some Lythracese and Onagracese) rarely zygomorphous, 

 with generally a well- developed hypanthium enclosing the 

 ovary, and frequently produced beyond it into a green or 

 coloured tube. Petals not valvate -*n bud, sometimes very 

 small. Ovary inferior 2-7-celled adnate to the hypanthium 

 or rarely free in its tube, always syncarpous and with connate 

 styles. Ovules axile. Seeds 1-very many. (The flowers 

 are usually 4-5-merous in all the whorla with the stamens 

 diplostemonous, sometimes however the stamens are numerous 

 from branching and the ovary with 2-8 cells or carpels). 



Exceptions :— 



L. sometimes sub-opp. or alternate in Combretacese, Myrtaceae (C&reya 

 and Barringtonia) and a few Onagraceae. The submerged leaves in Trapa 

 are pinnati-partite. Stipules present and interpetiolar in Bhizophoraceae. 



Perianth perigynous and ovary quite free in some Lythraceae. Petals 

 sometimes suppressed in Lythraceae and C'ombretacese. St. haplostemon- 

 ous in some Onagraceae. Ovary only 1-celled in Uombretaceae, and 1 -celled 

 by absorption of the septa in some Ammaunia. 



Ovules pendulous from the top, or lateral near the top of the o-vary in 

 Combretaceae, axile and parietal in the many-celled ovary of Punica. 



44. The Myrtle Family. 



Evergreen trees or shrubs with usually finely punctulate 

 opposite leaves (exc. Careya and Barringtonia) which are 

 quite entire and usually coriaceous with an intramarginal 

 nerve. Fls. epigynous 4-5-merous with numerous stamenr 

 often in 4-5 bundles, and with 2-5 rarely more cells in the 

 inferior ovary. Fr. 1-many-seeded, 



44. Myrtaceae (p. 350) 

 73 



