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Acta Forestalia Fennica vol. 23 | 1923

Category: Article

article id 7109, category Article
Aimo Kaarlo Cajander. (1923). Einige Hauptzüge der pflanzentopographischen Forschungsarbeit in Finnland. Acta Forestalia Fennica vol. 23 no. 10 article id 7109. https://doi.org/10.14214/aff.7109
English title: Some outlines of plant topographical studies in Finland.

The text is a presentation given on the occasion of the yearly meeting of the Finnish Academy of Science and Letters on April 10th 1922. It presents the development of the plant topographic research in Finland with the most influential research and authors and their principal work.

The retrospect covers the publications between 1673 and 1917
  • Cajander, ORCID ID:E-mail:
article id 7108, category Article
J. P. Norrlin. (1923). Die Habichtskräuter Finnlands. Acta Forestalia Fennica vol. 23 no. 9 article id 7108. https://doi.org/10.14214/aff.7108
English title: Hawkweeds (Hieracium sp.) of Finland.
Original keywords: Habichtskraut; Hieracium; Ûbersicht
English keywords: Hawkweed; Hieracium; overview

The article begins on the page 117/122 of the PDF file.

There are many forms of hawkweed in Finland, and they are hard to define, especially for an unexperienced examiner. The phenotype of the plant varies depending its site. The article presents the most typical forms ans subspecies for different regions of Finland. 

  • Norrlin, ORCID ID:E-mail:
article id 7107, category Article
J. P. Norrlin. (1923). Adnotationes de Pilosellis Fennicis. I. Aufzeichnungen über die Pilosellae Finnlands. I. Acta Forestalia Fennica vol. 23 no. 8 article id 7107. https://doi.org/10.14214/aff.7107
English title: Adnotationes de Pilosellis Fennicis. I Notices on Pilosellae (Hieracia sp.) (hawkweed) in Finland.

The article begins on the page 105/122 of the PDF file.

The article deals with the morphology of Hieracia sp. and their research, especially with Pilosella officinarum, also Hieracium pilosella. The article gives an overview of the most common, wide spread or otherwise remarkable forms of the genus of the Pilosella and reports, starting from the smallest areas, about the formula, distribution, abundance and occurrence of them.

The great amount of forms, their high variability and the tendency to hybridize make the definition of the varieties difficult.  However, the number of varieties in Finland is estimated to be between 150 and 200. The phenotype of the plant is also to some extent dependent on the site. The numerous forms that belong to the group of Piloselloideae can be divided in to groups: main species and intermediate forms. 

  • Norrlin, ORCID ID:E-mail:
article id 7106, category Article
J. P. Norrlin. (1923). Über die Prinzipien bei der Anordnung botanischer Exkursionen in Finnland. (Gelesen in der Jahresversammlung der Societas pro Fauna et Flora Fennica am 13. Mai 1872.). Acta Forestalia Fennica vol. 23 no. 7 article id 7106. https://doi.org/10.14214/aff.7106
English title: Principles of organization of botanical excursions in Finland (Given at the yearly meeting of the Societas pro Fauna et Flora on May 13th 1872).
Original keywords: Botanik; Exkursion; Anordnung;
English keywords: Botanical; excursion; organization

The article begins on the page 100/122 of the PDF file.

The article describes the development of collecting botanical knowledge of Finnish vegetation, and the problems that have occurred with the aspirations, to examine the Finnish vegetation and to collect the examples of the species. It also gives recommendations how the future studies on vegetation should be organized. 

  • Norrlin, ORCID ID:E-mail:
article id 7105, category Article
J. P. Norrlin. (1923). Übersicht der Moose und Flechten von Torneå- (Muonio-) und den angrenzenden Teilen von Kemi-Lappmark. Acta Forestalia Fennica vol. 23 no. 6 article id 7105. https://doi.org/10.14214/aff.7105
English title: Overview of moos and lichen in Tornio-Muonio and the bordering parts of Kemi-Lappmark in Finnish Lapland.

The article begins on the page 91/122 of the PDF file.

The data has been collected during summer 1867. It examines the moos and lichen species in for regions of Lapland: spruce region, pine region, birch region and fjeld region. The division of the regions is related to the climatic and biological conditions of areas, the first mentioned being the most southern and still suitable e.g. for many grasses. Respective regions have been presented with their general characters and list of species. Finally the findings of different regions are compared.   

  • Norrlin, ORCID ID:E-mail:
article id 7104, category Article
J. P. Norrlin. (1923). Bericht über die naturhistorische Reise in Torneå-Lappmark. Acta Forestalia Fennica vol. 23 no. 5 article id 7104. https://doi.org/10.14214/aff.7104
English title: Report on the natural historical Journeys in Tornio- Lappmark area in North of Finland.

The article begins on the page 82/122 of the PDF file.

The article is a travel report of the author’s travel from Helsinki to north of Finland. Alongside the description of the travel arrangements, it contains observations about the vegetation of the destinations they visited. The observations are divided into section of “spruce region”, “pine region” and “fjeld region”. 

  • Norrlin, ORCID ID:E-mail:
article id 7103, category Article
J. P. Norrlin. (1923). Flora Kareliae onegensis. I. Über die Vegetation von Onega-Karelien und die naturgeschichtliche Grenze Finnlands sowie Skandinaviens im Osten. Acta Forestalia Fennica vol. 23 no. 4 article id 7103. https://doi.org/10.14214/aff.7103
English title: Flora in area of Ääninen (Onega)-lake in Russian Karelia – Vegetation of Onega Karelia area and the natural historical border of Scandinavia and Finland in East.

The article begins on the page 27/122 of the PDF file.

The first part of the text deals with a general presentation of the geographical, biological and cultural conditions of the studied areas. The second part presents the characteristics of vegetation classified according the forest types, with lists of species. Forested areas, open lands and swampy areas are dealt with separately. The Saoneshje peninsula is presented separately.

The third part of the text discusses the similarities of the natural conditions between studied area and respective part of Finland. The vegetation and amount of species is clearly more diverse in studied area than in parts of middle-Finland. The study shows that in respect to vegetation Onega-Karelia cannot be seen as a part of the same region than Finland.  

  • Norrlin, ORCID ID:E-mail:
article id 7102, category Article
J. P. Norrlin. (1923). Beiträge zur Flora des südöstlichen Tavastlands. Acta Forestalia Fennica vol. 23 no. 3 article id 7102. https://doi.org/10.14214/aff.7102
English title: Writings on the flora of south-eastern Tavastia province.

The article begins on the page 8/122 of the PDF file.

Data for this paper have been collected during years between 1859 and 1862 in the communes of Asikkala, Hollola, Padasjoki, Lammi and Koski. 

The first part of the text deals with a general presentation of the geographical, biological and cultural conditions of the studied areas. The second part presents the vegetation according their habitats; they are classified by the degree of moisture. The last is further classified as forested areas or open lands. The examination concentrates on phanerogams (seed plants).   

The characteristics of vegetation of forests, open lands and paludified places (swampy or swamp forming places) are presented with the most influential characters and lists of species.   

  • Norrlin, ORCID ID:E-mail:
article id 7101, category Article
J. P. Norrlin. (1923). Lectio praecursoria, gehalten von J. P. Norrlin bei seiner Disputation am 13. Mai 1871. Acta Forestalia Fennica vol. 23 no. 2 article id 7101. https://doi.org/10.14214/aff.7101
English title: Lectio praecursoria (the opening presentation) of J. P. Norrlin at his public defence of a doctoral thesis on may 13th 1871.

The text is the opening presentation by the author at his public defence of his doctoral thesis on plant geography of Finland. The text discusses the principles that apply on plant geographical classification of earth with respect to characteristics of vegetation and gives an oversight on the plant geographical work conducted in Scandinavia. 

  • Norrlin, ORCID ID:E-mail:
article id 7100, category Article
Aimo Kaarlo Cajander. (1923). Gedächtnisrede für Johan Petter Norrlin, gehalten in der Versammlung der Finnischen Wissenschaftsozietät am 10 Mai 1918. Acta Forestalia Fennica vol. 23 no. 1 article id 7100. https://doi.org/10.14214/aff.7100
English title: Commemorative speech in honor of Johan Peter Norrlin, given in the meeting of the “Finnish Society of Sciences and Letters” on May 10th 1918.

The here published speech of Cajander presents the academic career of J. P. Norrlin as a researcher, teacher and influential person in the Finnish scientific society. It also sheds light on Norrlin’s person and thoughts. The highlights of his scientific merits are presented. There are many extracts of his correspondence included in the article that describe Norrlin’s thoughts and interest. 

  • Cajander, ORCID ID:E-mail:

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