XYCTAGIXE.E 409 



after germination, dull green, shortly glandular-pubescent ; lamina 

 of larger one eight days after germination oblong, 8-8*5 mm. long, 

 4'5-6 mm. wide, and twenty-eight days after germination oblong, 

 1-4-1 -45 cm. long and 9 mm. wide ; lamina of the smaller one eight 

 days after germination obovate, 1-25 mm. long, 1 mm. wide, sessile 

 or subsessile, and twenty-eight days after germination obovate, 

 tapering to the base, 1-4-1-8 cm. long and 8-75-10 mm. wide above 

 the middle ; petiole of the larger one eight days after germination 

 5-25-12-5 mm. long, and twenty-eight days after germination 2-4- 

 2-8 cm. long, semiterete, flattened on the upper side ; petiole of the 

 smaller one eight days after germination very small or almost absent, 

 but twenty-eight days after germination 2- 5-3 cm. long, terete, and 

 slightly channelled at the apex only. 



The larger cotyledon eight days after germination exhibits a 

 distinct midi'ib and two lateral nerves near the base, but twenty- 

 eight days after germination the cotyledon becomes rather fleshy, 

 and has the midrib only discernible ; the smaller cotyledon at first 

 exhibits a midrib only, and that very indistinctly, but twenty-eight 

 days after germination it is obovate, tapered to the base and trinerved, 

 about the same size as the originally large cotyledon or larger, with 

 a longer or shorter petiole. In all these characters it seems to 

 behave like a true leaf, but maintains the position of a cotyledon. 



Fifty-six days after germination the originally large cotyledon 

 measured as follows : Petiole 2'7 cm. long, with the lamina 

 1-85 cm. long, 1-1 cm. wide ; the originally small one now the 

 largest, with a lamina 2*3 cm. long, 1*2 cm. wide, and its petiole 

 4'9 cm. long, faintly trinerved. 



Stem herbaceous, annual, erect at first, ultimately procumbent ; 

 primary internodes undeveloped or very little developed in the early 

 stage, but afterwards the first one elongates in different individuals 

 from 5-18 mm. 



Leaves radical and cauline, alternate, or primary ones almost 

 opposite, shortly and densely glandular-pubescent, alternately and 

 ascendingly penninerved, rather fleshy, with the smaller nerves 

 indistinct or altogether indiscernible ; petioles terete, tapering some- 

 what upwards, densely and shortly glandular-pubescent. 



No. 1. Oblong, obtuse, entire, suddenly tapered into the petiole, 

 with about two alternate, indistinct nerves on each side of the mid- 

 rib, best seen on the under surface. 



Nos. 2 and 3. Similar, but somewhat larger with three to four 

 nerves on each side of midrib. 



No. 4. Similar, with four to five nerves on each side of midrib. 



