Key and commentary on the species of Spathiphyllum (Araceae) in Costa Rica, including S. silvicola, sp. nov

Calvatia sporocristata sp. nov. (Gasteromycetes) from Costa Rica.

Calvatia sporocristata, Gasteromycetes, is described and illustrated as a new species. Its taxonomic characters are discussed and compared with other closely related species of the genus. Few studies have been carried out on tropical Gasteromycetes. The new species here proposed has, as the main features: exoperidium corky, smooth, one-layered, pseudoparenchymatous; endoperidium thin, papyraceo...

New species of Potamocoris Hungerford (Heteroptera, Potamocoridae) from Costa Rica and a key to the species .

A new potamocorid species, Potamocoris sitesi NEW SPECIES, with its two wing morphs (coleopteroid and macropterous) are described from Costa Rica.  Descriptions are supported with photographs and illustrations. Parameres become progressively narrower, ending in a sharp needle-like point. This is the third species of Potamocoris known from Central America. A key to the species of the genus is pr...

Calvatia oblongispora sp. nov. from Brazil, with close affinities to C. sporocristata from Costa Rica

A new species of Calvatia from Manaus in Amazonas State, Brazil, is proposed, which is very close to Calvatia sporocristata, recently described from Costa Rica. The two species have been compared macroscopically and examined using light and scanning electron microscopy. The proposed new species, C. oblongispora, possesses a distinctly two-layered exoperidium consisting of a hyphal outer layer a...

Revista de Biología Tropical - Calvatia sporocristata sp. nov. (Gasteromycetes) from Costa Rica

Development in Costa Rica: The Key Role of Agriculture

Costa Rica is a relatively small country (50,000 square kilometers) with a population of only 2.7 million inhabitants. Its economy is small (GDP $4.7 billion), relatively open (annual imports account for 35 percent of GDP), and relatively poor (per capita yearly income is $1,600). Demographic and economic growth during the period after World War II was extremely rapid: between the periods 1950-...