The lobate and subfruticose species of Caloplaca in North and Central America.

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Abstract

This paper includes 19 saxicolous species of Caloplaca from North and Central America that are characterized by distinctive elongated marginal lobes, non-paraplectenchymatous hypothecium, and presence of anthraquinones. In various ways this group has been referred to as Caloplaca section Gasparrinia or even separated at the generic level. The group, however, is not regarded as natural and consequently not given taxonomic status. Descriptions, keys, and distribution maps are provided for all treated taxa. Three new species are described for the region: Caloplaca appressa, C. stellata, and C. texana. Several lectotypes are selected. Caloplaca augustina is a new synonym of C. galactophylla. Color illustrations are provided for most species or references to previously published color illustrations. Additional notes are presented for six related non-American species.

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  • Botany
Original languageEnglish
Pages (from-to)230-255
JournalBryologist
Volume101
Issue number2
StatePublished - 1998
Peer-reviewedYes