Abstract
This document is a summary of recent data about orchids from north-eastern Algeria. The areas concerned are the Kabylia in the broad sense and the historic Algerian Numidia with its adjacent mountains of Hodna and Aurès. They are very diverse territories in terms of geography (from the coast up to + 2000m altitude), bioclimate (from the semi-arid stage to the per-humid stage) and lithology (alluvium, limestone, dolomite, clays, shales, sandstones, granites, etc.).All the data published from 2005 have been synthesised and a lot of unpublished data observed from 2002 has been gathered thanks to around fifteen collaborators. Despite this, many sectors are still untouched for exploration and will need to be investigated in the future.Thus, 55 species have been illustrated and mapped. 8 others are known historically but have not yet been found. Finally, a last one has been reported in the past by mistake. The main synonyms are reminded. The taxonomic choice is following a similar recent work carried out on the Tunisian Orchids, with some rearrangements at the genus levela. A new nomenclatural combination has been created for the needs (Androrchis pauciflora subsp. laeta).A call for contributions is launched to all professional and amateurs Algerian botanists in order to continue the work through the whole Algerian Tell