OF MARINE COASTS. 125 



species, not sufficiently studied by the author. At Moreton Bay B. 

 pinifolius Desf. was found, and near Port Fairy, Victoria, a plant, 

 probably the same species. This genus is not confined to the coast. 



URTICACEAE. 

 Urtica dioica L. and U. wens L. 

 are not infrequently found on coast formations of the Baltic, but are 

 immigrants from inland. 



MYRICACEAE. 



Myrica californica Cham. 



Densely branched evergreen shrub, with fragrant alternate, simple, 

 almost entire or serrate leaves, thick, glabrous, oblong, tapering above 

 to an acute apex, narrowing below to a petiole, 7 — 12 cm. long; fruit 

 globose, purplish-brown, covered with a coat of whitish wax, 6 mm. in 

 diameter. 



Sand dunes on coast of California, and ravines of outer coast ranges. 



CASUARINEAE. 



Casuarina quadrwalvis Labill. 



and several other species occur on the dunes of Australia, especially in 



Victoria, South and West Australia, but their range is principally 



inland. 



CUPULIFERAE. 

 Quercus agrifolia Nee 

 in a low, prostrate form is found on coastal dunes of California, f. i. 

 at Seaside, Monterey. 



SALICACEAE. 

 Salix caprea L. 



Tall shrub, with large, ovate leaves, grayish green, tomentose under- 

 neath, entire. 



European and North Asian species, often planted on dunes of 

 Germany. 



S. daphnoides Vill. 



Low tree or tall shrub, with oblong-lanceolate leaves, serrate, 

 glabrous above, glaucous underneath. 



Often on dunes along the Baltic coasts. Extends also in to Central 

 Russia and Siberia. 



