586 



ON SEEDLINGS 



cordate at the base, alternately and ascendingly penninerved; 

 radicle cylindrical, obtuse, slightly thinner at the base of the 

 cotyledons, and much shorter. 



Seedling (fig. 374). 

 Hypocotyl stout, erect, terete, but 

 obtusely quadrangular beneath the coty- 

 ledons, glabrous, pale green, tapering 

 upwards, 2-3-2-7 cm. above the soil. 



Cotyledons foliaceous, oblong-rotund, 

 entire, very obtuse and rounded at the 

 apex, shortly petiolate, three- or slightly 

 five-nerved at the very base, reticulate, 

 glabrous, shining on both surfaces, light 

 green above, paler beneath ; lamina 

 1-4-1-6 cm. long, 1-3-1-35 cm. wide; 

 petiole flattened above, convex on the 

 back, broadest at the base of the lamina, 

 2 mm. long, with their edges decurrent 

 on the hypocotyl. 



Stem erect, slightly angled, pale 

 green, glabrous, ultimately climbing by 

 means of cirrhi from the axils of the 

 petioles, acutely quadrangular or winged ; 

 1st internode 2'25-3'5 mm. long ; 2nd 

 2*5-4 mm. 



Leaves simple, cauline, alternate, 

 stipulate, petiolate, alternately incurvi- 

 nerved, subreticulate, glabrous, light or bright shining green above, 

 paler beneath ; petioles short, flattened above or shallowly grooved 

 on each side of a raised midrib, obtusely carinate beneath ; stipules 

 small, subulate, acute, entire or slightly serrate at the apex, pale 

 green, glabrous, seated at the very base of the petiole or close to the 

 stem. 



Nos. 1 and 2. Ovate, obtuse, minutely apiculate, minutely and 

 distantly serrulate. 



No. 3. Subelliptic, otherwise similar to the first two. 



Passiflora cserulea, L. (fig. 375). 



Primary root long, tapering, abundantly furnished with adven- 

 titious rootlets. 



Hypocotyl erect, suffrutescent, terete, longitudinally ribbed with 

 elevated tuberculated lines, reddish, 3 to 4 cm. long. 



FIG. 374. 



Passiflora macrocarpc 

 Nat. size. 



