288 ON SEEDLINGS 



Convolvulus Cneorum, L. 



Ovary of two carpels, two-celled, four-ovuled ; ovules ascending 

 or erect, anatropous ; micropyle inferior. 



Capsule one-celled by the early rupturing of the septa, ovoid or 

 subglobose, membranous, dehiscing irregularly, one- to two-seeded. 



Seed ovoid, somewhat pointed, angled, slightly prolonged and 

 truncate on the posterior basal side, deep brown, shortly and densely 

 pubescent ; hilum small, round, facing the basal placenta obliquely ; 

 chalaza inconspicuous ; tegmen thin, membranous, white. 



Endosperm clear, subtransparent, surrounding the embryo and 

 filling up the interstices, mucilaginous and swelling up when placed 

 in water. 



Embryo large, twice folded, or once folded when the upper third 

 is reversed upon the middle one, embedded in the endosperm, pale 

 yellow ; cotyledons shortly petiolate, bipartite or cut into the petiole, 

 with oblong, obtuse, one-nerved lobes ; one lobe of each cotyledon 

 lies on either side of the median line of the seed ; radicle large, 

 curved, tapering to an obtuse point, incumbent, lying in an ovate 

 process of the micropyle. 



Seedling. 



Hypocotyl erect, terete, glabrous, colourless, about 1*85 cm. 

 above soil. 



Cotyledons bisected to the petiole with oblong, obtuse, diverging 

 segments, each with a central midrib, uniting with one another 

 in the common petiole at or above its middle, alternately penni- 

 nerved, narrowed at the base to a secondary petiole, glabrous, 

 pale, somewhat greyish-green above and covered with minute scales, 

 pale, but clearer green beneath and minutely scaly ; lamina 1'3- 

 1-45 cm. long, 4*5-5 mm. wide ; primary petiole semiterete, chan- 

 nelled above, glabrous, pale green, 3 4 5-4 mm. long ; secondary petiole 

 1-1-5 mm. long. 



Stem becoming shrubby, erect, terete, thinly hairy in the seedling, 

 pale green ; 1st internode 9'5 mm. long ; 2nd 3'75 mm. 



Leaves simple, entire, cauline, alternate, exstipulate, petiolate, 

 alternately penninerved ; nerves incurving, hoary and silky on both 

 surfaces with adpressed hairs ; petioles semiterete, short, channelled 

 above, covered with adpressed silky hairs. 



Nos. 1-4. Oblanceolate, cuspidate, narrowed into the petiole. 



Nolana atriplicifolia, Don. 



Ovary of five, rarely ten, carpels, one- to four-ovuled ; ovules 

 campylotropous ; micropyle inferior. 



