Architectural Pattern: Study of orchid architecture using tools to take quick measurements of virtual specimens

The joint use of two tools applied to plant description, XPER3 and Recolnat Annotate , made it possible study vegetative architectural patterns (Fig. 1) the Dendrobium (Orchidaceae) in New Caledonia defined by N. Hallé (1977). This approach is not directly related taxonomy, but definition sets species grouped according a growth pattern. In course this work, characters stated were analysed eventually amended produce data matrix generate an identification key. Study materials: Sw. archipelago Pacific Ocean, French overseas territory located east Australia. It one 36 biodiversity hotspots world. genus sensu lato largest family Orchidaceae contains over 1220 species. Caledonia, includes 46 his revision family, (1977) 14 groups, into which he divided 31 known at that time. These models are based on those F. Oldeman (1970). But they clearly intended group together for purposes. Architectural pattern: A pattern set or reproductive define general shape individual. Developed mechanisms linked dominance terminal buds, groups differentiated arrangement leaves, position inflorescences stem 1). Plants obeying given do necessarily have phylogenetic relationships. useful application field identifying plants. Monocotyledonous plants, particular Orchidaceae, lend themselves well approach, produces stable patterns. free tool observing qualitative features making physical measurements (angle, length, area) images. can be used offline downloaded from https://www.recolnat.org/en/annotate. software setting up observation projects batch herbarium images studied, associating with descriptive model. file exported comma separated value (csv) format further analysis 2). Usually context systematics items studied taxa, also distinguish phylogenetically related. Laboratoire d'Informatique et Systématique (LIS) Institut de Systématique, Evolution, Biodiversité Paris, online collaborative platform allows editing (https://www.xper3.fr/?language=en). cross-referencing (in case groups) descriptors (or characters). development access keys (it means without fixed sequence steps). latter online. offers single-access keys, using character weighting dependencies between characters. Links model developed within framework provides states. Thus observations measurement integrated platform. Specimens then compared, several descriptions merged express description 3). RESULTS manage both specimens has proven relevant. Moreover, virtual fast reliable. had produced dichotomous single-accesskey allowed attribution observed herbarium. project build polytomous interactive key required completing give status each was network France. us redefine these light new herbaria publish available dendrobium-nc.identificationkey.org.