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Guérin-Faublée Véronique,Garraud Luc. Session botanique dans le Champsaur, le Valgaudemar et les montagnes du Gapençais (7-11 juillet 2014). In: Bulletin mensuel de la Société linnéenne de Lyon, 84ᵉ année, n°7-8,2015. pp. 227-244.

Potentilla cinerea Vill., Prosp. Hist. Pl. Dauphin��: 46. 1779. �� Potentilla opaca Vill., Hist. Pl. Dauphin�� 3: 566. 1788 [nom. illeg.] �� Potentilla verna subsp. cinerea (Vill.) Sch��bl. & G. Martens, Fl. W��rtemberg: 341. 1834. �� Potentilla acaulis subsp. cinerea (Vill.) Soj��k in Preslia 65: 129. 1993. Neotypus (here designated): ��� Potentilla opaca ���, Reliquae Chaixianae, s.d., s.coll. (GAP [GAP002134], arrow) (Fig. 1). Mat-forming perennial subshrub with rooting, mostly subterraneous creeping woody stems; ascending flowering stems up to 15 cm tall; leaves on both sides with a more or less continuous tomentum of stellate hairs, its density increases with light exposure. Stellate hairs with 10-20 short rays and sometimes a long central hair up to 0.5 mm long. Leaves rarely ternate, mostly 5-digitate; petioles with few-branched stellate hairs and simple hairs of about 0.3 mm length as well as patent hairs of 2-3 mm length, the latter being absent in related species, all hairs translucent; central leaflet 15-23 �� 7-9 mm, oblong-obovate with a cuneate base, apically dentate from about the middle, teeth mostly blunt, grey-green above, grey beneath; stipules of basal leaves linear, about 1 cm long. Flowers 1-6, in cymes. Sepals ovate or ovate-lanceolate; epicalyx-segments lanceolate or elliptical, usually shorter than sepals. Petals 4-7 mm, light yellow to golden yellow, longer than sepals. Achenes rugose; style conical at base, slightly clavate at apex. Chromosome number 2 n = 28., Published as part of Gregor, Thomas, Tison, Jean-Marc & Garraud, Luc, 2013, Neotypification of Potentilla cinerea Vill. (Rosaceae), pp. 155-158 in Candollea 68 (1) on page 156, DOI: 10.15553/c2013v681a22, http://zenodo.org/record/5710684

National audience; A basic and applied approach to evaluate natural heritage, conservation and management: example based on wild flora heritage in the Petit-Buech watershed (Hautes-Alpes, France). On the basis of specific pool attributes, we propose it conceptual and methodological process to achieve conservation management in the pan-European Natura 2000 network of selected and protected sites. Maintenance or even improvement of biodiversity in these sites will be encouraged through contractual arrangements with the land managers. Our data set came from a Natura 2000 site near Gap, in the southern French Alps. Multiple Correspondence analysis (MCA) was first performed on the main biological attributes of 665 plant species and this multivariate model was then validated by a probabilistic experimental design. Our results showed that 17.3% of the total floristic richness of France was observed in the study area (57 km(2)). The main and prior conservation groups were composed of oligotrophic, heliophilous and boreo-arctic species. Correlation between the biological groups derived from multivariate analysis and habitat preferendum allowed us to spatialize areas that were most important for conservation management. New species, coming from independent data, were introduced as supplementary rows in our multivariate model, allowing a discussion on their niche width and their natural heritage attributes. We hope that this methodological and pragmatic process make a relevant decision tool for conservation planning.

International audience; Les Tulipes de France. La flore de France comprend une quinzaine d'espèces, néo- espèces et variétés de tulipes sauvages (voir tableau ci- après). Toutes ces espèces liées, de près ou de loin, aux activités humaines (ce sont souvent des plantes messicoles d'origine orientale, liées aux cultures peu intensives ou aux pelouses sèches de caractère sub-steppique) subissent actuellement une régression importante avec la mutation des activités agraires, l'urbanisation, l'arrachage des bulbes...