by S. F. Blake
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Two new composites from Florida
Zexmenia costaricensis Benth
A new plant of the genus Polygala from M...
A new Polygala from Bermuda
New Asteraceae from Costa Rica
New composites from Salvador
The genus Polygala in North America
The plant genus Polygala in the Galápago...
Floral and dispersal biology of polygala...
Review of the British species and subspe...
Espécies novas do gênero Polygala do Bra...
Las especies argentinas del género "Poly...