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Lichenology in North America, 1947-1972
Vol 61, Page 45
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History of Botany, 1947-1972 with a Bibliographic Appendix
Vol 61, Page 237
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Ecological Differentiation in Some Congeneric Species of Costa Rican Flowering Plants
Vol 61, Page 297
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Evolution of Systematic Characters in the Ferns
Vol 61, Page 307
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The Significance of Chromosome Numbers in Ferns
Vol 61, Page 310
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Reproductive Biology and Evolution in the Pteridophyta
Vol 61, Page 318
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Structure of Spores in Relation to Fern Phylogeny
Vol 61, Page 332
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Phytochemical Aspects of Fern Systematics
Vol 61, Page 368
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Evolutionary Trends in the Marattiales
Vol 61, Page 388
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Variable Expression of the Appendicular Status of the Megaphyll in Extant Ferns with Particular Reference to the Hymenophyllaceae
Vol 61, Page 408
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Evolution of Vegetative Morphology in Coenopterid Ferns
Vol 61, Page 427
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Systematic Characters of Devonian Ferns
Vol 61, Page 462
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Phyletic Lines in the Modern Ferns
Vol 61, Page 474
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A Reconsideration of Spondias mombin L. (Anacardiaceae)
Vol 61, Page 483
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Cienfuegosia Cav. Extended to Madagascar
Vol 61, Page 491
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Studies of Bignoniaceae 11: A Synopsis of the Genus Distictis
Vol 61, Page 494
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Jacquemontia ovalifolia (Convolvulaceae) in Africa, North America, and the Hawaiian Islands
Vol 61, Page 502
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Notes on Some Critical Characters in Columnea Classification
Vol 61, Page 514
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Casearia belizensis Standley, A Synonym of Laetia procera (Poeppig) Eich. (Flacourtiaceae)
Vol 61, Page 526
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Anatomic Considerations of the Calyx of Adenocalymma comosum (Cham.) A.P. DC
Vol 61, Page 530
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Gibsoniothamnus (Scrophulariaceae) in Panama
Vol 61, Page 533
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The Role of Plant-Pollinator Interactions in Determining Community Structure
Vol 61, Page 675
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The Insects of British Trees: Community Equilibration in Ecological Time
Vol 61, Page 692
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Plant and Bat Interactions in West Africa
Vol 61, Page 702
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Coevolutionary Patterns in Central American Bignoniaceae
Vol 61, Page 728
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Coevolution of Ficus and Agaonidae
Vol 61, Page 770
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Floral Evolution in Viola
Vol 61, Page 781
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Ecological Economics of Foraging Among Coevolving Animals and Plants
Vol 61, Page 794
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Plant Geographic Studies on Dipterocarpaceae in Malesia
Vol 61, Page 806
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Solanum and Its Close Relatives in Florida
Vol 61, Page 819
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Pollination in Piperaceae
Vol 61, Page 868
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Studies in Bignoniaceae 12: New or Noteworthy Species of South American Bignoniaceae
Vol 61, Page 872
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A New Species of Myrcia (Myrtaceae) for Panama
Vol 61, Page 886
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A New Panamanian Species of Lobelia (Section Tylomium)
Vol 61, Page 889
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Notes on Panamanian Apocynaceae
Vol 61, Page 891
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Chromosome Numbers of Phanerogams. 5
Vol 61, Page 901
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A New Sphagnum from High Altitude Costa Rica
Vol 61, Page 904
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Reduction of Bosleria (Solanaceae)
Vol 61, Page 906