518 ON SEEDLINGS 



Further stages of the leaves are broadly cuneate, then obtusely 

 triangular ; the upper two angles of the leaf gradually elongate 

 until they become acute and slender. The elongated points even 

 at this early stage are involute in vernation, with unusually long 

 hairs very sensitive to contact with an insect. The glands however 

 are quite dry until the points of the leaf are fully expanded. 



Ultimate leaves bifurcate, with long petioles, dividing at the 

 apex of the glabrous petiole into two branches which again divide 

 into two branches about 1-1 cm. above the first fork; branches 

 linear, attenuate, glandular-hairy above, grooved on both surfaces, 

 thickened at the margin two anterior branches shortest, diverging 

 two posterior ones ascending, and diverging upwards. 



Drosophyllum lusitanieum, Link. 



Primary root long, slender, blackish or brown, with numerous 

 brown root-hairs, but unbranched when young. 



Hypocotyl subterranean, colourless, naked, 2 mm. long. 



Cotyledons subterranean, and remaining in the seed after germi- 

 nation, petiolate ; petioles directed to one side of the stem, colour- 

 less, short, but sufficiently long to readily permit of the plumule 

 escaping from the seed. 



Stem erect, terete, pale green and glabrous in the early stages ; 

 1st internode 1-1'2 cm. long ; 2nd very much shorter. 



Leaves simple, entire, cauline, alternate except the first pair, 

 stipulate, sessile, linear, circinate in vernation and rolled backwards, 

 with numerous sessile glands apparently immersed in the tissue of 

 the edges and upper surface, and with stalked and capitate glands 

 on the back and edges but particularly on the latter in the seedling 



First pair opposite or on slightly different levels, slightly connate 

 at the base, linear, acute, shallowly grooved above, with a distinct 

 midrib, and stalked glands on the edges, and a few on the back. 



Nos. 2 and 3. Alternate, but otherwise very similar, and at this 

 early stage circinate at the tip. 



Seedlings with four leaves like the above were densely covered 

 with flies of various sizes both dead and alive, often fixed to the 

 glands by their feet only and struggling to escape. The viscid 

 secretion of the glands may be drawn out to a length of some inches. 



