Results 151 to 160 of about 1,178 (187)
The Cyatheaceae and Dicksoniaceae (Pteridophyta) of Bolivia
Brittonia, 2006 A summary is presented of all Bolivian species of Cyatheaceae and Dicksoniaceae. In total two species of Dicksoniaceae (Culcita 1 sp., Dicksonia 1 sp.) and 34 species of Cyatheaceae (Sphaeropteris 1 sp., Alsophila 5 spp., Cyathea 26 spp., Cnemidaria 2 ...
Marcus Lehnert
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Cyathea bettinae (cyatheaceae), a new tree fern from Bolivia
Brittonia, 2004 Lehnert, M. (Albrecht-von-Haller Institut, Abt. Systematische Botanik, Universitat Gottingen, Untere Karspule 2, 37073 Gottingen, Germany; email: marlehnert@yahoo.com). Cyathea bettinae, a new tree fern from Bolivia. Brittonia 56: 210-212.
Marcus Lehnert
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Botanical Gazette, 1930
1. Under favorable conditions the plate stage follows very quickly after germination; there is ordinarily no filament left at the base of the prothallium. The mature prothallium usually is longer and the cushion heavier than in the Polypodiaceae. Forking of the cushion of the prothallium occurs frequently in old cultures, and in certain species may ...
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1. Under favorable conditions the plate stage follows very quickly after germination; there is ordinarily no filament left at the base of the prothallium. The mature prothallium usually is longer and the cushion heavier than in the Polypodiaceae. Forking of the cushion of the prothallium occurs frequently in old cultures, and in certain species may ...
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Medicinal Ferns of Cyatheaceae, Lindsaeaceae, and Pteridiaceae
2021This chapter introduces 9 species of medicinal ferns in 5 families, such as Sphenomeris chinensis of Lindsaeaceae, Pteridium aquilinum var. latiusculum of Pteridiaceae, Pteris ensiformis, Pteris multifida, Pteris semipinnata, Pteris vittata of Pteridaceae, Adiantum capillus-veneris, and Adiantum flabellulatum of Adiantaceae.
Huagu Ye +8 more
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Cyathea cranhamii sp. nov. (Cyatheaceae), anatomically preserved tree fern sori from the Lower Cretaceous of Vancouver Island, British Columbia† [PDF]
American Journal of Botany, 2003 Permineralized cyatheaceous sori occur among remains of conifers, fungi, and other plants in newly discovered calcareous concretions from Early Cretaceous (Barremian) marine sediments of Vancouver Island, British Columbia, Canada.
Selena Y. Smith +2 more
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2016
Plantas terrestres con hábito arborescente. Tallos erectos, delgados a robustos, muy raramente ramificados, hasta de 15 mde altura, envueltos por raíces caulógenas, y bases persistentes de los pecíolos, escamosos en el ápice, dictiostélicos conabundante esclerénquima en los haces vasculares.
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Plantas terrestres con hábito arborescente. Tallos erectos, delgados a robustos, muy raramente ramificados, hasta de 15 mde altura, envueltos por raíces caulógenas, y bases persistentes de los pecíolos, escamosos en el ápice, dictiostélicos conabundante esclerénquima en los haces vasculares.
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Mating Systems of Cyatheaceae Native to Taiwan
2003The mating systems of six species of Cyatheaceae native to Taiwan were characterized by comparing isolated and paired cultures. The genetic loads were: Alsophila fenicis and A. podophylla, 100%; Sphaeropteris lepifera, 85%; A. denticulata, 76%; A. spinulosa, 61%; and A. metteniana, 46%. Genetic load and the frequency of intragametophytic selfing should
Wen-Liang Chiou +2 more
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ANATOMICAL STUDIES OF CYATHEA AND TRICHIPTERIS (CYATHEACEAE)
American Journal of Botany, 1977Comparative anatomical studies of the mature stems of two species each of Trichipteris and Cyathea (Cyatheaceae) are described. The outermost boundary of the stem is typically a two‐layered hypodermis. Mucilage‐sac cells are randomly distributed in all parenchymatous areas of the stem and form articulated laticifer systems.
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Validation of the combination Gymnosphaera gigantea (Cyatheaceae)
Phytotaxa, 2019The genus Gymnosphaera was originally established by Blume (1828) for two tree ferns from Java, Indonesia with naked sori and globular receptacles. It was emended by Copeland (1947) to contain tree ferns characterized by dark axes and exindusiate sori which were dorsal on simple veinlets.
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The Classification of the Cyatheaceae
American Fern Journal, 1971C. V. Morton, R. M. Tryon
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