CENTRO DE INFORMACIÓN GEO-BIOLÓGICO DEL NOA

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Northeastern Limits of the Know Range of Rhus Toxicodendron. by
Material type: Text Text; Audience: Specialized;
Publication details: U.S.A. 1941
In: Torraya XLI (1941) 58-59
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Studies in the Gentianaceae: Gentiana, Section Pneumonanthe, subsection Angustifoliae. by
Material type: Text Text; Audience: Specialized;
Publication details: U.S.A. 1941
In: Bull. Torrey Bot. Club Vol. 68 N°9 (1941) 660-663
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Studies in the Crassulaceae- II. Mexican Sedoideae Collected by E.K. Balls in 1938. by
Material type: Text Text; Audience: Specialized;
Publication details: U.S.A. 1941
In: Bull. Torrey Bot. Club. Vol. 68 N°7 (1941) 473-476
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On The Use Of The Terms "Subspecies" and "Variety" by
Material type: Text Text; Audience: Specialized;
Publication details: 1941
In: Reprinted from Rhodora, vol. 43, 1941
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The variations of Sagittaria subulata. by
Material type: Text Text; Audience: Specialized;
Publication details: U.S.A. 1941
In: Torreya XLI (1941) 161-162
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Ophioglossum vulgatum on the Inner Coastal Plain of Alabama. by
Material type: Text Text; Audience: Specialized;
Publication details: U.S.A. 1942
In: Amer. Fern Journ. XXXII N°3 (1942) 105-108
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Studies in the Crassulaceae.- III. Sedum Subgenus Gormania, Section Eugormania. by
Material type: Text Text; Audience: Specialized;
Publication details: U.S.A. 1942
In: Bull.Torrey Bot. Club Vol. 69 N°1 (1942) 27-40
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