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4 May 2011 Howellanthus dalesianus, Recognition of a New Genus and Species in Tribe Phacelieae (Boraginaceae)
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Abstract

Howellanthus (Constance) Walden and R. Patt. is recognized as a new genus, containing a single species H. dalesianus (J. T. Howell) Walden and R. Patt., based on morphological evidence. Howellanthus dalesianus (Boraginaceae) is a small perennial herb, endemic to northern California and restricted to ultramafic soils. The species was first collected in 1936 by Ella Dales Cantelow and Herbert Clair Cantelow, described by John Thomas Howell as Phacelia dalesiana J. T. Howell, and later placed in the monotypic Phacelia subg. Howellanthus by Lincoln Constance.

Genevieve K. Walden and Robert Patterson "Howellanthus dalesianus, Recognition of a New Genus and Species in Tribe Phacelieae (Boraginaceae)," Madroño 57(4), 268-273, (4 May 2011). https://doi.org/10.3120/0024-9637-57.4.268
Published: 4 May 2011
JOURNAL ARTICLE
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