Contribution
Calicium in the tropical and subtropical Americas
Tibell, Leif; Kalb, Klaus
Nova Hedwigia Band 55 Heft 1-2 (1992), p. 11 - 36
17 références bibliographiques
publié: Aug 26, 1992
DOI: 10.1127/nova.hedwigia/55/1992/11
ArtNo. ESP050005501002, Prix: 29.00 €
Abstract
Nine species of Calicium have been recorded from the tropical and subtropical Americas. A key to the species is supplied, the morphology and secondary product chemistry is treated and the ecology and distribution of the species is indicated. A nomenclatural revision of Calicium species described from the area is included. Placodiolic acid, which has not earlier been reported from Caliciales s. lat., was found in Calicium chlorosporum, C. lenticulare and C. salicinum. 4-O-methylhypoprotocetraric acid, in Caliciales previously reported from Sphaerophorus scrobiculatus, was found in Calicium lenticulare. Calicium abietinum is reported new to South America, Calicium constricum new to Venezuela, Calicium chlorosporum new to Mexico, Central America, Colombia and Venezuela, Calicium lenticulare new to Mexico, Hispaniola and Venezuela, Calicium leucochlorum new to Brazil and Calicium tricolor new to Mexico, Brazil and Colombia.
Mots-clefs
leprose lichen • Calicium