124 THE SAND STBAND FLOBA 



Sea coasts of Victoria, South Australia, and Tasmania. 

 Closely related to following species. 



B. viscosa Miq. 



Tall shrub, flowering branches viscid; leaves oblong-lanceolate, ob- 

 tuse, petiolate, margins recurved, glabrous above, white-tomentose under- 

 neath, 2 — 5 cm. long. 



Coastal sands of Moreton Bay, Queensland, Victoria, and Western 

 Australia (Perth). Also in Tasmania and the interior of New South 

 Wales. 



Croton califomicus Muell. 



Perennial herb, suffrutescent at base, with branching stem, erect 

 or diffuse; 4 — 12 dm. high; herbage hoary, upper side of leaves green, 

 finely stellate-pubescent; leaves oblong, 2 — 4 cm. long; petioles 1 — 3 cm. 

 long, staminate plant more slender and shorter branched. 



Coastal sand dunes of California, from San Francisco to Los Angeles. 



Euphorbia afato Forst. 



Diffuse, glabrous perennial, 30 — 45 cm. high, branches slender; 

 leaves opposite, shortly petiolate, oblong, obtuse, more or less cordate, 

 thick, 2 — 3 cm. long. 



Sea coasts of East India, Malayan Archipelago, Islands of Pacific, 

 North Australia, and Queensland southward to Moreton Bay. 



E. glauca Forst. 

 is a specimen common on dunes in New Zealand. 



E. Paralias L. 



Perennial, with short,- hard, almost woody stock and erect stems, 

 15 — 25 cm. high; leaves short, concave, leathery, pale green. 



On coastal sands from Belgium southward in Europe, and extending 

 into Mediterranean. Also on the southern coasts of British Islands. 



E. terracina L. var. retusa. 



Perennial, with long stolons; leaves linear-lanceolate to oblong- 

 linear; very glaucous. 



Coastal sands of the Mediterranean countries, Canary Islands, 

 Azores, and Medeira. Very common on the dunes of Spain. 



Ricinocarpus cyanescens Muell. 

 occurs on coastal sands in Western Australia together with several other 



