Houstonia rigidiuscula Wooton & Standl.

, Contr. U.S. Natl. Herb. 16: 175 (1913). BHL
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External links to taxonomic opinions:
WFO POWO
IPNI Life Sciences Identifier (LSID)
urn:lsid:ipni.org:names:124330-2
Publication
Contributions from the United States National Herbarium. Smithsonian Institution
Collation
16: 175
Family as entered in IPNI
Rubiaceae

Links

Nomenclatural link
Houstonia angustifolia var. rigidiuscula A.Gray, Syn. Fl. N. Amer. 1(2): 27 (1884).
Same citation as
Houstonia rigidiuscula Wooton & Standl., Contr. U.S. Natl. Herb. xvi. 175 (1913).
Same citation as
Houstonia rigidiuscula (A.Gray) Wooton & Standl.