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Juvenile Alluaudia comosa in typical habitat, Cap Sainte Marie.

vegetation dominated by Didiereaceae, for example, Decaryia madagascariensis, Alluaudia procera, A. montagnacii, A. humbertii, tree Euphorbiu spp., Pachypodium spp., and Adansonia fony.

16) Reserve naturelle integrale d'Andohahela — has a good representation of Alluaudia and Didierea spp. with Didierea trollii, A. procera, A. ascendens, A. humbertii, and tree Euphorbia spp.

7) Reserve naturelle integrale du Tsingy de Bemaraha -Euphorbia moratii (3 vars.), many Aloe spp., Lomatophyllum spp. and Pachypodium spp.

8) Reserve specialc Cap Sainte Marie - the limestone rocks support Alluaudia comosa, Alluaudiopsis fiherensis, Aloe millotii, Euphorbia capsaintemariensis and Crassula humbertii.

9) Reserve speciale Bezaha-Mahafaly - a 500 ha reserve protecting xerophytic vegetation in south-west Madagascar, with Didiereaceae, Aloe, Euphorbia and Pachypodium spp.

10) Reserve speciale d'Ankarana - Pachypodium decaryi. Euphorbia ankarensis, E. herman-schwartzii, E. alfredii, E. pachypodioides, E. neohumbertii, and Cyphostemma laza.

Many of Madagascar's protected areas have received more intensive biological research than other parts of the country, but the more inaccessible sites are still poorly explored. The preparation of detailed inventories of the protected areas would help in the analysis of current protection given to threatened succulent species in Madagascar. Renewed inventory work is currently being carried out in actual or proposed protected areas, mainly under the auspices of Missouri Botanical Garden's Madagascar Research and Conservation Program. This, however, concentrates on wet forests with little work on the dry or high plateau flora.

National legislation

There is currently no legislation giving special protection to rare and threatened succulents in Madagascar. Protected area legislation has been discussed above. Conservation legislation relating to vegetation and flora

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