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* Sonneratiaceae, for example ''Sonneratia alba''
Inventories of Pteridophyta (ferns) around Andranobe, Ambohitsitondroinan'Ambanizana and on Nosy Mangabe have demonstrated, that Masoala is the centre of fern diversity of northeastern Madagascar. 155 varieties distributed in 50 genera were collected, representing 27.3% of the ferns of Madagascar. 45 species were surveyed on Nosy Mangabe.<br><br>
In the marine plot of [[Tanjona]] nine species of marine phanerogams were inventoried, as well as the sea grass species ''Syringodium isoetifolium'', ''Thalassia hemprichii'' (turtle grass), ''Halophila ovalis'' (paddle weed) and ''Diplantera sp''.
99 species of seaweed were identified, including 40 species of red algae, 34 species of green algae and 25 species of brown algae.<br><br>
A botanical survey in different areas on the Masoala peninsula revealed, that Masoala is one of the richest regions in terms of palm trees in Madagascar. 50 species of palms were identified, of which about a dozen can only be found on Masoala. Some of them are:
* ''Marojejya darianii'' - [[Big-leaf palm]]
* ''Dypsis pachyramea''
* ''Dypsis moorei''
* ''Lemurophoenix halleuxii''
* ''Voanioala gerardii'' - [[Forest coconut]]
Almost half of the Malagasy species of Bignoniaceae grow on the Masoala peninsula. Four types of Bignoniaceae were inventoried, all of which are endemic to Madagascar. That are:
* ''Rhodocolea''
* ''Ophicolea''
* ''Colea''
* ''Phyllarthron''
Other interesting plants are:
* ''Nepenthes masoalensis'' - pitcher plant
* Species of the Geosiridaceae family which are endemic to Madagascar, such as ''Geosiris aphylla''
* Three species of ''Rhopalocarpus'' of the Sphaerosepalaceae family
* Some members of the Sarcolaenaceae family, such as ''Rhodolaena altivola''<br><br>
== The best flora most visible to tourists ==
