Teuvo Ahti

Nordic Macromycetes

Cladoniaceae (Flora Neotropica Monograph No. 78)

Suomen jäkäläopas

Lichens of the Great Slave Lake Region, Northwest Territories, Canada

Four species of Cladinae new to North America

Bacidia Chlorococca, a common toxitolerant lichen in Finland

Contribution to the study of the genera Cladina and Cladonia in Spain. II

Exsiccata - Exsiccates

New species of Cladonia from Brazil

[Collected works]

The lichen Dimelaena oreina in east-central Asia with notes on its typification and chemical races

The identity of Cladonia theiophila and C. vulcani

A revision of Cladonia stricta

A familia Cladoniaceae (liquens) no Rio Grande do Sul, Brazil

Notes on the lichens of Newfoundland

New Localities for Cavernularia hultenii in eastern and western North America

Poronjäkälien taksonomiasta

Distribution of the lichen Cladonia Delavayi des Abb

Gedanken und probleme zur systematik der familie Cyperaceae

The lichen genera Cladonia, Cladina and Cladia in Taiwan

The mosses of the island of Newfoundland

Taxonomoic revision of Cladonia gracilis and its allies

Biology of the smartweed borer...

Cladoniaceae

Preliminary studies on woodland caribou range, especially on lichen stands, in Ontario

The botanical journeys of A. K. Cajander and J. I. Lindroth to Karelia and Onega River in 1898 and 1899, with a list of their bryophyte and lichen collections