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Zur kenntnis der organstellungen im pflanzenreich.

The leaf anatomy of hemlock, Tsuga canadensis. Calcium oxalate and sulphate-containing structures on the thallial surface of the lichen Ramalia lacera : response to polluted air and simulated acid rain. Plant Cell Environ. Hotta M. Study of the family Araceae: general remarks.


Gynoecium diversity and systematics in basal monocots. Kuo-Huang L.

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Ultrastructural study on the development of crystal-forming sclereids in Nymphaea tetragona. Taiwania 37 : Google Scholar. Mayo SJ. Anthurium acaule Jacq. Kew Bull. Mayo, S. Systematics of Philodendron Schott Araceae with special reference to inflorescence characters. Observations of gynoecial structure in Philodendron Araceae. The genera of Araceae. Oladele FA. Development of the crystalliferous cuticle of Chamaecyparis lawsoniana A. Periplasmic cuticular calcium oxalate crystal deposition in Dracaena sanderiana. Posluszny U, Sattler R. Floral development of Potamogeton richardsonii. Crystals in woody stems.

Uhlarz H. Typologische und ontogenetische untersuchungen an Spathicarpa sagittifolia Schott Araceae : Wuchsform und infloreszenz. Vladimirova, S. Anatomical and morphological plasticity of the periclinal chimera D. Sander ex M. Agavaceae in reponse to four light intensities. Cited by View all 8 citing articles Gynoecial ontogeny of Anthurium : contributions for floral developmental studies in Araceae Alismatales.

Developmental morphology of the flower of Anaphyllopsis americana and its relevance to our understanding of basal Araceae. Article Tools. Journal Tools Instructions to authors Get an email alert for the latest issue Check out the journal's featured content Follow the Journal Subscribe Now or click here for more information. Connect With Us. CSP Blog.

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The degree of correlation between shoot organization characteristics and systematic groupings is examined, and the utility of these characteristics for systematics is evaluated. Some patterns which appear are pointed out: taxa with bisexual flowers usually produce a single inflorescence at the terminus of a vegetative article. A few taxa with bisexual flowers produce pairs of inflorescences at the ends of articles.

Multiple inflorescences more than two at an article terminus occur only among taxa with unisexual flowers. Multiple inflorescences are associated with anisophyllous or homeophyllous sympodial growth, while single or paired inflorescences are associated with homeophyllous or intermittent homeophyllous sympodial growth. These patterns might be understood as the result of selection for flexibility of reproductive effort and of seasonal reproduction.

Volume 75 , Issue 1.

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If you do not receive an email within 10 minutes, your email address may not be registered, and you may need to create a new Wiley Online Library account. If the address matches an existing account you will receive an email with instructions to retrieve your username. Become a member Botany. American Journal of Botany Volume 75, Issue 1. Thomas S. Pachyneurium series Pachyneurium , and in A. Tetraspermium Fig. Belolonchium Fig. While analyzing the patterns of vasculature described here, and the possible use of the vascular characteristics for better delimitation of the sections of Anthurium , we noted that the presence of an apical septum and carpels vascularized by dorsal and synlateral bundles Pattern B —observed in all of the studied species of A.

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The three patterns of carpel vasculature occur in Clade B and deserve to be investigated in a larger number of species, particularly from A. A possibility is that Pattern A could be a plesiomorphy for all Anthurium species, given that it is also found in other species of A. However, the lack of samples from other sections precludes a clear distinction between these two patterns and reinforces the importance of vasculature data in the genus.

We thank Dr. Pablo Nunes, Dr. Ana Paula Cardozo for the images of Anthurium pentaphyllum ; and the reviewers Dr. Stefan de Folter, Dr. Margarita Remizowa and Dr. Monica Carlsen for their critical comments on the manuscript. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Competing Interests The authors declare there are no competing interests.

Temponi and Alessandra I. Field Study Permissions The following information was supplied relating to field study approvals i. Data Availability The following information was supplied regarding data availability:. National Center for Biotechnology Information , U. Journal List PeerJ v. Published online Jan Temponi , 2 and Alessandra I. Coan 1. Alessandra I. Author information Article notes Copyright and License information Disclaimer. Corresponding author. Poli: rb. Received Sep 8; Accepted Dec This is an open access article distributed under the terms of the Creative Commons Attribution License , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed.

Associated Data Data Availability Statement The following information was supplied regarding data availability: The raw data is included in Table 2. Abstract Introduction and Aims Anthurium is the largest genus of Araceae, with species distributed in the neotropics. Methods We compare the floral vasculature of 20 neotropical species belonging to distinct sections of Anthurium , using both light and confocal laser scanning microscopies.

Results The number and position of vascular bundles are constant within the tepals and stamens, regardless of the species and sections studied. Conclusions The variation in the supply to the carpels in Anthurium is corroborated here. Table 1 Comparison of early classification systems with the recent phylogeny of Anthurium. Open in a separate window.

Materials and Methods Neotropical representatives of four traditional sections of Anthurium , mainly distributed in Brazil, were selected for the present study Table 2 ; Fig. Table 2 Specimens of Anthurium examined and respective collections. Figure 1. General aspects of habit and inflorescences of some representatives of Anthurium. Figure 2. Floral vasculature Based on our sample of 20 species of Anthurium from four distinct sections Table 2 , two patterns of floral vasculature were observed, related primarily to the carpellary supply.

Figure 3. Diagrams of median longitudinal sections of flowers at female anthesis of Anthurium. Figure 4. Diagrams of serial transverse sections from the base A to the apex M of the flower at female anthesis of A.