374 ON SEEDLINGS 



acute, cuneate at the base and very shortly petiolate, coarsely serrated 

 on the lower half, with two ovate, subacute, decurrent serratures on 

 each side on the first two leaves, and three or more on the third 

 leaf. 



Anacardium occidental, L. 



Hypocotyl erect, terete, fleshy, covered with minute points, 2' 5- 

 3 cm. above the soil. 



Cotyledons aerial, large, fleshy, falcate, directed to one side of 

 the seedling stem, plano-convex, but deeply channelled at the base 

 on the upper side, glabrous, yellowish-green, trinerved on the 

 back, where they also distinctly show the short lateral nerves, and 

 are slightly reticulate, nerveless on the upper surface, sessile, 

 4'4 cm. long in the bent condition, 10-12 mm. wide. 



Stem erect, tapering upwards very much in the seedling stage, 

 covered with minute glandular points, fleshy, ultimately woody ; 1st 

 internode 4-4'5 cm. long, appearing as if jointed to the apex of the 

 hypocotyl above the cotyledons, where a bud is given off in the axil 

 of each, thickened on one side with two elevated processes as if 

 furnished with a sheath ; 2nd and 3rd internode 2-3 mm. long ; 4th 

 shorter. 



Leaves simple, entire, cauline, alternate, exstipulate, shortly 

 petiolate, closely and alternately incurvinerved, bronze-coloured in 

 the young state, and ultimately deep green, shining, glabrous. 



Nos. 1-4. Oblong-elliptic, shortly acuminate, crowded. 



Mangifera indica, L, (fig. 257). 



Primary root very stout, tapering downwards, and giving off 

 slender, lateral rootlets, dark- coloured. 



Hypocotyl very short, stout, terete, glabrous, pale-coloured, with 

 dark markings, 6-8 mm. long, 7-8 mm. wide. 



Cotyledons oblong, obtuse, thick, fleshy, plano-convex, subter- 

 ranean, cut away on the upper side at the base, and slightly auricled 

 on the under and basal side, very shortly petiolate, about 5 '7 cm. long, 

 2-5 cm. wide ; petioles stout, fleshy, plano-convex, curved at right 

 angles to the radicle to accommodate the latter in germination, 

 12-13 mm. long, 7'5 mm. wide. 



They often become lobed, and sometimes proliferous, splitting 

 transversely and forming a second embryo with two cotyledons 

 corresponding to half the original ones or less. 



When this is the case, a second plumule and radicle are developed 

 similar to the original. 



