Adesmia bijuga corresponde a Pinus radiata Adesmia bijuga Phil. y Escallonia pulverulenta se dan en las especies introducidas Aira caryophyllea y Pinus radiata. Adesmia bijuga in situ su estado de conservación.

This article reports the rediscovery of the specie Adesmia bijuga Phil. (Fabaceae), in the coastal zone of the Maule Region (35°29'31" S-72°22'47" W) in central Chile. The population was found between two Pinus radiata D.Don plantations and species of the sclerophyllous shrub. Its state of conservation is unknown.

In this note we examine the population structure of Teline monspessulana, an exotic plant that is invading fragments of the Maulino Forest. We evaluate density T. monspessulana, sizes, proportion of reproductive individuals and his relation with the size of the patches in 8 forest fragments. Our results indicate a high proportion of individuals growing inside fragments. Moreover, the fragment size is not correlated with T. monspessulana density.

Pine invasion is a global threat that is occurring in native forests of diverse regions of the world. This process is arising in a scenario of rapid forest deforestation and degradation. Therefore, elucidate which forests attributes explain invasibility is a central issue in forest ecology. The Coastal Maulino forest is an endemic forest of central Chile, which has suffered a large history of disturbance, being replaced by large extensions of Pinus radiata plantations. This land transformation conveys high rates of pines invasion into native remnants. In this study we examined to what extent structural features of forest patches explains invasibility of this forest-type. Within eight forest fragments, we sampled 162 plots (10 x 10 m 2 each). We quantified seedling pine density and related these estimates with tree cover, litter depth, PAR radiation, and diversity of the resident community. Our results indicate that canopy cover was the most important variable to determine seedling pine density within forest fragments. Our investigation highlights the importance to conserve the forests cover to reduce significantly their invasibility. This action can be effective even if we cannot avoid pine plantations in the region as a source of a massive seed dispersal to forests with well conserved canopy.

Estructura y fenología reproductiva de una población remanente de Adesmia bijuga Phil., Fabaceae, en un hábitat costero mediterráneo perturbado de Chile central Structure and breeding phenology of a remaining population of Adesmia bijuga Phil., Fabaceae, in a mediterranean coastal habitat disturbed of central Chile ABSTRACT In this note we examine the population structure and breeding phenology of Adesmia bijuga Phil. The area of development of the study was Curepto, Maule Región, central Chile. Our results indicate a high vulnerability of local extinction of the studied population due low population size and disturbed habitat. Flowering and fructification of individuals exists, nevertheless absence of seedlings suggesting restrictions to the regeneration in the population of A. bijuga. It is recommended to continue with the research. Actions of conservation ex situ for the species are realized by the botanical garden of the Talca University.