in the most recent period. USA is the top producing country, followed by the United Kingdom, Australia. freance, Germany, Spain, and Canada. There were 17,493 authors contributing to the field. During 19912006 there were 4098 organizations with authors involved in…

A new species, Habranthus medinae L. O. Alvarado & GarcíaMendoza (Amaryllidaceae, Hippeastreae), from the state of Puebla, Mexico, is described. The new species is similar to H. tubispathus (L'Héritier) Traub, but can be distinguished by the larger size of the…

Marsdenia magallanesiana JuárezJaimes, a new species from the state of Jalisco, Mexico, is described and illustrated here; it is compared with M. edulis S. Watson and M. callosa Juárez-Jaimes & W. D. Stevens, which are the morphologically most similar species…