RUBIACE^E 



69 



Stem erect, terete, hairy, herbaceous; 1st internode 1*5-8 mm. 

 long. 



First leaves ovate-lanceolate, obtuse, acuminate, shortly petio- 

 late, exstipulate, with a few scattered hairs, shiny green, distinctly 

 and alternately penninerved. 



Ixora parviflora, Vahl. 



Hypocotyl very firm, 2'5 cm. long, 1 mm. thick, terete, glabrous, 

 purplish-red. 



Cotyledons unequal, with connate, rather short petioles, 1*2- 

 1*5 cm. long, and 1*5-1*8 cm. wide ; lamina horizontal, obtusely 

 triangular or oblate, cordate at base, very obtuse at apex, entire, 

 palmatinerved, with copious anastomosing veins, glabrous, coria- 

 ceous, dark shining green above, paler beneath. 



Stem very short, pubescent at first, marked with red stride. 



Leaves shortly petiolate or subsessile, alternately incurvinerved, 

 coriaceous, evergreen, deep green above, paler beneath ; stipules 

 interpetiolar, connate, with a broad base, and an acute, more or less 

 acuminate point. 



First pair subsessile, 1-1*5 A 



cm. long, and about 6 mm. wide, 

 spathulate-obovate, penninerved. 



Second pair remaining very 

 minute for a long time after the 

 unfolding of the first. 



Ixora congesta, Eoxb. (fig. 

 434). 



Ovary two-celled, two-ovuled ; 

 ovules peltate, amphitropous ; mi- 

 cropyle inferior. 



Fruit baccate, subdidymous 

 when both carpels are fertilised 

 and come to maturity, but globose 

 if only one is fertilised and perfect, 

 glabrous, one- to two-celled and 

 one- to two-seeded ; endocarp hard 

 and tough, convex or rounded dorsally, concave with an orbicular 

 ventral orifice, pale brown, marked with darker spots ; mesocarp 

 fleshy ; epicarp dark purple or black. 



Seed conforming to the endocarp, rounded on the back, deeply 

 concave on the ventral aspect at its insertion on the placenta, and 

 peltate, glabrous ; testa thin, membranous ; hilum forming a large 



FIG. 434. Ixora congesta. A, longi- 

 tudinal section of seed, x 8 : E, em- 

 bryo; En, endosperm; H, hilum. 

 B, embryo, x 8. 



