Subtropical epiphytes

Tropical and subtropical epiphytes or rock plants. Psibtum nudum. 

Ostreopsis siamensis was first isolated by Schmidt in the Gulf of Siam, Thailand, in 1901 (Schmidt 1901). This dinoflagellate occurs in mat r tropical and subtropical areas of the world, mainly as epiphytic and less frequently as planktonic, and also in temperate areas during summertime. Until today, the presence of O. siamensis has been reported in the coastal waters of Japan (Yasumoto et al. 1987), New Zealand (Chang et al. 2000 Rhodes et al. 2000), Tasmania (Pearce et al. 2000), Spain, Italy (Vila et al. 2001 Penna et al. 2005), Greece (Aligizaki et al. 2005), and Tunisia (Turki 2005). 

In New Zealand s subtropical coastal waters Ostreopsis siamensis is frequently present as epiphytic on seaweeds and planktonic in some occasions as well (Chang et al. 2000 Rhodes et al. 2000). Since 1994, restrictions on the harvesting of oyster in Rangaunu Harbour, Northland,... 

O. siamensis was first isolated by Schmidt in the Gulf of Siam (Thailand) in 1901 [79]. This dinoflag-ellate occurs, mainly as epiphytic and less frequently as planktonic, in many tropical and subtropical areas of the world, and also in temperate areas during summertime. Until today, the presence of... 

Taxonomically these families do not show an obvious close relationship (Fig. 1.1). They do have, however, two distinct features in common. Firstly, all the families are tropical or subtropical in origin and many of the CAM species have invaded arid regions. The CAM species occupy arid or locally dry niches. These include arid desert-type habitats and physiologically dry habitats such as encountered by epiphytes and plants existing in very rocky or shallow soils. Some, in fact, such as Dudleya may actually grow within rock wall faces. Secondly, most of those species which show CAM are either stem or leaf succulents, or fleshy or coreia-cous leafed plants such as the bromelid and orchid epiphytes (see Chap. 2.1). 

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