Revision of Pearcea (Gesneriaceae)

Related Titles

Series: Smithsonian contributions to botany, no. 84

By

Kvist, Lars Peter

Skog, Laurence E.

Type

Book

Material

Published material

Publication info

Washington, D.C, Smithsonian Institution Press, 1996

Notes

Seventeen species of Pearcea (Gesneriaceae) are recognized, nine of which are new: Pearcea bella, P. bilabiata, P. cordata, P. fuscicalyx, P. glabrata, P. gracilis, P. grandifolia, P. intermedia, and P. strigosa. Of the remaining eight species, two were originally described in Pearcea, one is transferred herein from Kohleria, and five come from Parakohleria, a genus placed in synonymy herein. Pearcea occurs mainly on the eastern Andean slopes of Colombia (5 species), Ecuador (12 species), Peru (6 species), and Bolivia (1 species), and one species also occurs on the western Andean slopes in Ecuador. The largest number of species appears to occur in Ecuador, although additional species may occur in less explored parts of Peru. Pearcea differs from related and similar genera in the Gloxinieae by having fleshy capsules dehiscing by two valves and exposing a sticky seed mass. All species are herbs, usually with bright red flowers, and are usually found in the shady, humid forest understory, often near small streams. Hybridization, local speciation, and polymorphic variation may complicate the species delimitation. The variable Pearcea sprucei occurs throughout nearly the entire range of the genus (and includes the only accepted variety, var. parviflora), but most species are rare and local.

Subjects

Classification , Pearcea

Call Number

QK1 .S2747 no. 84

Language

English

Identifiers

DOI: https://doi.org/10.5962/bhl.title.100881
LCCN: https://lccn.loc.gov/96028456
OCLC: 35042202
Wikidata: https://www.wikidata.org/entity/Q51375529