PORTULACE^E 229 



not quite central, the radicle lying in the smaller auricle of the 

 sinus and the cotyledons in the larger one ; micropyle on one side 

 of the hilum, the chalaza on the other. 



Endosperm copious, farinaceous, white, lying in the centre of the 

 seed and extending to the broader circumference only at the base. 



Embryo comparatively large, much curved, occupying the cir- 

 cumference of the seed, except a small piece at the base peripheral 

 and entirely outside the endosperm (in the specimens examined), 

 colourless, but darker than the endosperm ; cotyledons linear, plano- 

 convex, or serniterete, obtuse, entire, incumbent, lying in the 

 narrow plane of the seed with their backs to the placenta, about as 

 long and as broad as the radicle ; radicle terete or cylindrical, 

 obtuse, abutting with its tip against the micropyle. 



Calandrinia pilosiuscula, DC. 



Hypocotijl erect, terete, glabrous, colourless or faintly tinged 

 with red, 8-10 mm. long. 



Cotyledons 15-22 mm. long, linear, obtuse, tapering slightly at 

 the base, entire, covered with a minute scarcely perceptible pubes- 

 cence, green, without any apparent venation. 



Stem with primary internodes undeveloped. 



First leaves simple, entire, radical, alternate (first pair appa- 

 rently opposite), exstipulate, linear, obtuse, slightly tapering to the 

 base, covered with a very minute pubescence, one-nerved, green. 



Calandrinia umbellata, DC. 



Hypocotyl 4-6 mm. long, stained with red. 



Cotyledons fleshy, oblong-oval, obtuse, entire, shortly petiolate, 

 glabrous, dark green, without any apparent venation. 



Stem as in C. pilosiuscula. 



First leaves linear-lanceolate, tapering to the base but hardly 

 petiolate, covered with rather long glandular hairs, otherwise as in 

 C. pilosiuscula. 



TAMARISCINE^E. 



Benth. et Hook. Gen. PL i. 159. 



Fruit and Seed. The one-celled ovary consists of from 

 three to five carpels, and as many parietal placentas, which pro- 

 ject into the interior and often become more or less united with 

 one another, thus imperfectly dividing it into loculi. The 



