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Nomenclatural notes for the North American Flora. III
Vol 69, Page 129, Date 1990
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A NEW SPECIES OF TUBEROUS DROSERA FROM WESTERN AUSTRALIA
Vol 69, Page 160, Date 1990
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New taxa in Senecio from México
Vol 69, Page 138, Date 1990
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An overview of the Mexican genus Digitacalia (Asteraceae, Senecioneae)
Vol 69, Page 150, Date 1990
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Taxonomy of Erigeron bellidiastrum (Asteraceae: Astereae), with a new variety
Vol 69, Page 163, Date 1990
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Vernonia diazlunana (Asteraceae, Vernonieae), a new species from Jalisco, México
Vol 69, Page 169, Date 1990
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A new species of Neuroleana [sic] from southern México
Vol 69, Page 172, Date 1990
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Polygonella polygama (Vent.) Engelm. & A. Gray, new to Louisiana
Vol 69, Page 175, Date 1990
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New species, varieties, and combinations in Bidens section Greenmania (Asteraceae: Coreopsideae)
Vol 69, Page 177, Date 1990
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New names and combinations in Cosmos (Asteraceae, Coreopsideae)
Vol 69, Page 189, Date 1990
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Cosmos caudatus (Asteraceae: Coreopsideae) in México: a cytotaxonomic reappraisal
Vol 69, Page 200, Date 1990
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New taxa and new combinations in Thelesperma (Asteraceae: Coreopsideae) from México
Vol 69, Page 216, Date 1990
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Taxonomy of the Erigeron pringlei group (Asteraceae: Astereae)
Vol 69, Page 227, Date 1990