Hartog, Organogenic Notes. 343 



far nearer PrimulacefS thaii to Ebenacece, and must therefore 

 be removed from tlie Diospyrinece. 



Symplocacece. — Symplocos coronata has dense racemes of flowers, 

 each axillary to a bract. The pedicel bears a pair of sterile 

 bractlets; above these a calyx of quiiicuncial development, 5 alter- 

 nating simultaneous petals, and 5 alternipetalous staminal 

 tubercles , each of which bears a dorsal crop of stamens , wliile 

 antipetalous stamens are not fonned. There are 3 carpels. In 

 S. spicata, the inflorescence is dibotryal , a raceme (or „spike") 

 corresponding to the single flower of S. coronata. 



The condition here shows a marked difference from the 

 symmetry of the Styracece., and so far confirms Miers' proposal to 

 keep the groups separate. 



Capparidece. — Grateeva reliyiosa has in its adult state a sub- 

 perigynous calyx, corolla, and andrcecium, the latter uniseriate 

 and pleiomerous, with a vaulted ingrowth („disk") extending 

 inwards from the base of these organs towards the gynophore 

 which it closely embraces with its free incurved edge ; giving the 

 appearance of adnation in the herbarium specimen (Torus hemi- 

 sphsericus, lobatus, fundum calycis vestiens, Bentham &Hooker, 

 Genera, I, p. 110). The development of the androecium is that 

 of a symmetrical Polanisia; i. e. the first staminal rudiments are 

 alternipetalous; the lateral 2 are simple or represented by 3 

 tubercles each, the middle one being the older; while this process 

 takes place to a rauch greater extent with the antero-posterior 

 pair. The disk appears as a thickening inside the base of each 

 sepal; this hypertrophy extends laterally, involving the bases of 

 the petals and stamens, while these organs at the same time 

 become raised and perigynous owing to the cupping of the recep- 

 tacle. At the same time the disk grows inwards, and finally 

 abuts against the base of the gynophore and is inflected there 

 over the hollow receptacle, which contains honey (secreted by the 

 disk?) at anthesis. 



Dipterocarpacecß. — No organogeny of this order is published. 

 In Doona Zeylanica Thw. the sepals are markedly quincuncial in 

 origin; the 5 petals are simultaneous. The fifteen stamens are 

 developed in three alternating centrifugal cycles. The innermost 

 is alternipetalous and developes first; as the receptacle widens 

 between these and the corolla a second , antipetalous verticil of 

 stamen is formed outside the former; and finally in the interspaces 

 of and outside these, a third, alternipetalous cycle is formed thus 



II would seem probable that the same arrangement, which we 

 may term obtriplostemonous, prevails in the other 15-androus genera 



