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PITTIER, H.
42  results:
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1

Certain Cactaceae of Venezuela: New and old species of Opun..:

Pittier, H.
Journal of the Washington Academy of Sciences.  26 (1936)  2 - p. 41-45 , 1936
Link: https://www.jstor.org/st..
 
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2

DEGENERATION OF CACAO THROUGH NATURAL HYBRIDIZATION:

PITTIER, H.
Journal of Heredity.  26 (1935)  10 - p. 385-390 , 1935
Link: https://doi.org/10.1093/..
 
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3

Studies in Solanaceae.—I. The species of Cestrum collected ..:

Pittier, H.
Journal of the Washington Academy of Sciences.  22 (1932)  2 - p. 25-37 , 1932
Link: https://www.jstor.org/st..
 
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4

Botanical notes on, and descriptions of, new and old specie..:

Pittier, H.
Journal of the Washington Academy of Sciences.  21 (1931)  7 - p. 134-143 , 1931
Link: https://www.jstor.org/st..
 
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5

Botanical notes on, and descriptions of, new and old specie..:

Pittier, H.
Journal of the Washington Academy of Sciences.  20 (1930)  1 - p. 3-12 , 1930
Link: https://www.jstor.org/st..
 
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6

Botanical notes on, and descriptions of, new and old specie..:

Pittier, H.
Journal of the Washington Academy of Sciences.  19 (1929)  16 - p. 351-357 , 1929
Link: https://www.jstor.org/st..
 
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7

Botanical notes on, and descriptions of, new and old specie..:

Pittier, H.
Journal of the Washington Academy of Sciences.  19 (1929)  9 - p. 175-186 , 1929
Link: https://www.jstor.org/st..
 
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8

Some errors and mistakes in taxonomic botany:

Pittier, H.
Journal of the Washington Academy of Sciences.  18 (1928)  8 - p. 206-212 , 1928
Link: https://www.jstor.org/st..
 
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9

Studies of Venezuelan Bignoniaceae.—I. Ceratophytum, a new ..:

Pittier, H.
Journal of the Washington Academy of Sciences.  18 (1928)  3 - p. 61-66 , 1928
Link: https://www.jstor.org/st..
 
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10

Studies of Venezuelan Bignoniaceae.—II. Species of Amphilop..:

Pittier, H.
Journal of the Washington Academy of Sciences.  18 (1928)  6 - p. 170-172 , 1928
Link: https://www.jstor.org/st..
 
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11

Studies of Venezuelan Bignoniaceae.—III. New species of the..:

Pittier, H.
Journal of the Washington Academy of Sciences.  18 (1928)  12 - p. 333-343 , 1928
Link: https://www.jstor.org/st..
 
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12

Six new Convolvulaceae from Venezuela:

Pittier, H.
Journal of the Washington Academy of Sciences.  17 (1927)  11 - p. 284-288 , 1927
Link: https://www.jstor.org/st..
 
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13

THE LECYTHIDACEAE OF CENTRAL AMERICA:

PITTIER, H.
Contributions from the United States National Herbarium.  26 (1927)  1 - p. I-14 , 1927
Link: https://www.jstor.org/st..
 
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14

Venezuelan species of Valeriana, section Porteria:

Pittier, H.
Journal of the Washington Academy of Sciences.  16 (1926)  15 - p. 422-428 , 1926
Link: https://www.jstor.org/st..
 
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15

On Gyranthera and Bombacopsis, with a key to the American g..:

Pittier, H.
Journal of the Washington Academy of Sciences.  16 (1926)  8 - p. 207-214 , 1926
Link: https://www.jstor.org/st..
 
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