324 SYSTEMATIC BOTANY 



therefore ' ascendingly-imbricate ', while in the MIMO- 

 SEM the corolla is quite regular and the aestivation 

 of the petals is valvate, none overlapping. 



MYRTACE^E 



Examples : 



EUGENIA JAMBOLANA, Lam., the Jamoon or Jam- 

 balam, a large well-branched tree well known on 

 account of its fruit. 



Leaves opposite, simple petioled, exstipulate. Blade 

 ovale or oblong, shortly acuminate, entire, coriaceous, 

 glabrous. Midrib prominent, lateral veins slender very 

 numerous and close together, meeting in one running 

 just inside the margin and parallel to it. 



Flowers in small lateral panicles, calyx with small 

 lobes (or sepals) or entire. Petals four, small round, 

 greenish, and falling off together in one piece. Sta- 

 mens numerous, the filaments bent inwards in bud. 

 Ovary inferior two-celled. Style single, with small 

 stigma. Fruit fleshy with one large seed (i.e. a one- 

 seeded berry looking very like a drupe). 



PSIDIUM GUYAVA, L., the Guava, a small tree culti- 

 vated in almost all parts of India on account of its 

 fruit. Leaves opposite, simple, shortly petioled, ex- 

 stipulate. Blade ovate or oblong, entire, glabrous 

 above, slightly pubescent below, midrib and side veins 

 prominent. 



Flowers singly or in sets of two or three on short 

 axillary peduncles. Calyx ovoid, and when the flower 

 is opened, with four or five small lobes. Petals of 

 the same number, round (i.e. without any claw), about 



