Perhaps in Ranomafana you stayed at Cent-Rest, Lilia's place? She has quite an extensive collection of anthurium at her hotel. In March this year, I spent a whirlwind week seeking rare palms in Mada, in areas around Ranomafana and Parc d'Isalo, so I am very pleased to see your article. I wish you had written a dozen more pages with photos! It's a fantastic country, with tremendous plant and animal richness, but the constant destruction by fire in unprotected areas is disheartening.
Shoe, no, we did not camp, there are some (rather basic) accomodation. The worse in Mada comes from transportation, it took me 24h to go from Ranomafane to Tananarivo which make some 460km...
We did not stay at Lilia's but some shabby place up the road. Palms are a special treat in this country, I guess you know the book on Malagasy palms by Dransfield and Bentje? Flying over Mada is awful when you see all the fires and smoke it is like the whole place threatens to burn down, sad.