Cockayne. — Development of Seedlings. 391 



turned to the incident light, but inside and sheltered are much 

 thinner. Younger plants have the upper twigs erect, not 

 interwoven, and have stellate hairs, as in the seedling form, 

 but extremely reduced fleshy linear leaves. It grows in wet 

 salt meadows, near the sea-shore, and is exposed to most 

 frequent east winds, and when these do not blow to heavy 

 gales from north-west and south-west. This constant exposure 

 to wind accounts for the final habit of growth, which much 

 resembles that of Coprosnia acerosa, growing on the adjoining 

 sand-dunes. It is interesting in connection with the above 

 that P. linariifolia, Buchanan, of the West Coast, from 

 moister and probably more sheltered habitat, is, judging from 

 his drawing and description (Trans. N.Z. Inst., vol. xvi., 

 pi. xxxiv., pp. 394, 395), much more like the later seedling 

 form of P. divaricatus than is its own adult form. 



Pseudopanax crassifolia, C. Koch. Plate XXXIII. , figs. 

 31-35. 



Described fi'om seedlings collected on bank of Eiver 

 Kowai, Mount Torlesse Range, and which have been culti- 

 vated in greenhouse iinder same conditions as other seedlings 

 treated of for eight months. 



Description of Seedling. 



Root long, stout, often with many lateral spreading root- 

 lets from the base ; young rootlet with great numbers of root- 

 hairs. 



Hyppcotyle variable in length, thick, fleshy at first, then 

 woody, dark-brown or dark-purple, glabrous, smooth, terete. 



Cotyledons persistent, leafy, obovate (fig. 33), oblong, 

 entire or toothed, rounded obtuse or very shallow -lobed at 

 apex ; midrib prominent, swollen ; margin pale -reddish, 

 slightly recurved; petioles short, semi-erect, connate at base. 



1st leaf coriaceous, dark-green, often blotched with pale- 

 brown, ovate-lanceolate, cuneate at the base or rhomboid, 

 deeply and coarsely toothed, tapering gradually into the 

 petiole ; petiole semi-terete, channelled above, half length of 

 lamina, sheathing and swollen at the expanded base. 



2nd leaf usually linear-lanceolate, sharply toothed ; teeth 

 largest towards base of leaf ; apex acute : surfaces — upper, 

 black-green, spotted with pale-brown ; under, much paler, 

 tapering into the petiole : midrib evident on both surfaces, 

 and raised ; petiole semi-terete, slender, channelled, much 

 shorter than lamina, sheathing and swollen at base. 



3rd leaf often very similar to 2nd, or already the second 

 type of leaf may have appeared as under. 



4th and next few succeeding leaves sessile, or almost so, 

 spreading and pointing slightly upwards, linear, with distant 



