NOTES ON LYTHRUM (LYTHRACEAE) IN CALIFORNIA: LYTHRUM JUNCEUM AS A NEW (BUT OLD) INTRODUCED SPECIES, TYPIFICATION OF GREENE'S LYTHRUM TYPES, AND POSSIBLE HYBRIDIZATION OF LYTHRUM IN CALIFORNIA

Barbara Ertter; David Gowen

doi:10.3120/0024-9637-66.3.97

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1 October 2019 NOTES ON LYTHRUM (LYTHRACEAE) IN CALIFORNIA: LYTHRUM JUNCEUM AS A NEW (BUT OLD) INTRODUCED SPECIES, TYPIFICATION OF GREENE'S LYTHRUM TYPES, AND POSSIBLE HYBRIDIZATION OF LYTHRUM IN CALIFORNIA

Barbara Ertter, David Gowen

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Madroño, 66(3):97-102 (2019). https://doi.org/10.3120/0024-9637-66.3.97

Abstract

The Mediterranean species Lythrum junceum Banks & Sol. is newly reported from California, based on multiple records from southwestern Alameda County and adjacent Santa Clara County. Previous collections, dating to at least 1905, were misidentified as L. californicum Torr. & A.Gray, but differ in their sprawling habit, white-based petals, and purple-spotted hypanthia. Diagnostic features, invasive potential, and speculations on origin are addressed. In addition, two species of Lythrum described from California in 1889 are typified: a lectotype for L. adsurgens Greene and a neotype for L. sanfordii Greene. The possible role of hybridization in the establishment of L. hyssopifolia L. and other introduced species of Lythrum in California is also discussed.

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Barbara Ertter and David Gowen "NOTES ON LYTHRUM (LYTHRACEAE) IN CALIFORNIA: LYTHRUM JUNCEUM AS A NEW (BUT OLD) INTRODUCED SPECIES, TYPIFICATION OF GREENE'S LYTHRUM TYPES, AND POSSIBLE HYBRIDIZATION OF LYTHRUM IN CALIFORNIA," Madroño 66(3), 97-102, (1 October 2019). https://doi.org/10.3120/0024-9637-66.3.97

Published: 1 October 2019

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