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241
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Revision of Corophiidae and related families (Amphipoda)
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243
A review of the genus Cancellus (Crustacea: Diogenidae) with the description of a new species from the Caribbean Sea.
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244
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A comparison of formative cultures in the Americas : diffusion or the psychic unity of man /
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246
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Studies in the genus Boerhavia L. (Nyctaginaceae) 1-5 /
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250
A revision of the tribal and subtribal limits of the Heliantheae (Asteraceae) /
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251
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A study of the genus Schistocarpha (Heliantheae : Asteraceae) /
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253
A revision of the genus Polylepis (Rosaceae : Sanguisorbeae) /
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254
Classification, evolution, and phylogeny of the families of Monocotyledons /
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255
A synopsis of the lichen genus Xanthoparmelia (Vainio) Hale (Ascomycotina, Parmeliaceae) /
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256
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257
The morphology and taxonomy of Aneilema R. Brown (Commelinaceae) /
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258
A scanning electron microscope survey of the epidermis of East African grasses, III /
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259
Green persuasion : advertising, voluntarism, and America's public lands /
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260
Hubble's legacy : reflections by those who dreamed it, built it, and observed the universe with it /
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Government Document Online Book