440 



ON SEEDLINGS 



Cotyledons nearly equal, obtuse, rhomboid- orbicular, oblique, 

 entire, penninerved, plane, glabrous, thin but fleshy, pale green, 

 1-2 cm. long, and 2-3 - 5 cm. wide ; petioles channelled, glabrous, 

 succulent, reddish, connate at the base, 1-5-2 cm. long, about 1 mm. 

 thick. 



Stem succulent, terete, glabrous, reddish ; 1st internode 3- 

 7 cm. long, l'25-2 mm. thick ; 2nd shorter and thinner. 



Leaves rather membranous, three- to five-nerved at the base, 

 and penninerved upwards. 



No. 1. 8-5 cm. long, 2-4'5 cm. wide, cordate-hastate, obtusely 

 acuminate, entire, palmatinerved, thin, with mealy pubescence, 

 light green ; petiole channelled above, glabrous or slightly pubes- 

 cent. 



No. 2. Similar but more acuminate. 



Fagopyrum tataricum, Gaertn. (fig. 620). 



Primary root long, tapering downwards, colourless, giving off 



short, slender, lateral fibres. 



Hypocotyl erect, terete, minutely glandular-pubescent, red, 

 striated with darker lines, shining, 2- 

 2-8 cm. above the soil and tapering in- 

 sensibly into the root. 



Cotyledons suborbicular, rounded at 

 the apex, cordate at the base and 

 unequally auricled, the longer auricle 

 of one cotyledon on the opposite side to 

 that of the other, while the lamina is 

 generally larger on the side with the 

 longer auricle, faintly five-nerved at the 

 base, petiolate, deep subglaucous-green 

 above, paler beneath, glaucous and 

 slightly reticulate ; lamina TS-l'S cm. 

 long, including the auricles, 1'2-1'4 cm. 

 wide ; short side of a typical, good-sized 

 cotyledon 1-1 cm. long, 5'75 mm. wide ; 

 longer side T4 cm. long, 8'5 mm. wide ; 

 petioles semiterete, channelled above, 

 glabrous, shining, dilated and connate at 

 the base forming a cup round the plumule, 



tapering upwards and becoming rather slender, unequal in length ; 



longer one in specimen described 2-7 cm. long ; shorter one 2'15 cm. 

 Stem erect, terete or somewhat flattened on two sides, thinly 



pubescent on the internodes and more densely so at the nodes or 



FIG. 620. 



m tataricum. 

 all nat. size. 



