BORAGINE^E 



259 



En, 



calyx-tube, four-celled, four-seeded, or by abortion fewer, indehiscent, 

 and not separating into nutlets as in the more typical Boraginefe ; 

 epicarp forming a thick cortical pale brown stratum ; the bony endo- 

 carp with longitudinal and a few more or less acute transverse 

 ridges, embedded in the cortical layer. In the fruit examined one 

 cell had a perfect embryo or seed, while all the other ovules were 

 aborted and the cells 

 very small. - s 



Seed conforming to 

 the interior of the cell 

 which it fills, ovoid- 

 conical, glabrous, pale- 

 coloured ; testa very 

 thin, soft, separable 

 into an outer cortical 

 layer, and an inner 

 white layer ; micropyle 

 superior at the pointed 

 end of the seed, and 

 indicated by a small 

 dark-coloured spot. 



Endosperm absent. Flo . 5S4 ._ Cordia subcordata. Transverse section 

 Embryo large, of nut, x 4: T, testa; C, cotyledon; TB, TB, testa 



qtrniVht nprnnvino- tliP f barren Seeds in empty cells ; En ' endocar P; s > 

 Stiaignt, occupying til barren cell with testa, T ; S, sutural line. 



whole interior of the 



seed ; cotyledons large, much plicate longitudinally and crenate at 

 the margin, folded from the circumference towards the centre of the 

 seed, and from thence back again, and this is continued all round 

 the interior of the seed, rather thick, fleshy, and colourless ; radicle 

 very short, stout, turbinate, obtuse, lying externally to the coty- 

 ledons and occupying the conical tip of the seed, close to the micro- 

 pyle which is dark-coloured. 



Seedling (fig. 535). 



Hypocotyl suffruticose, densely covered with short stiff hairs, 

 7 cm. long. 



Cotyledons petiolate, soft and succulent, becoming coriaceous, 

 transversely oval, roundish or oblong, crenate, plicate, subcordate at 

 the base, palmately three- to five-nerved with numerous strong 

 lateral veins ascending from the primary ones, pale green above 

 and covered with a dense adpressed pubescence, paler beneath and 

 glabrous except on the nerves ; petiole somewhat flattened above* 

 convex beneath, densely pubescent, 8'5 mm. long. 



s 2 



