tortula {analogue}

Morphological data for ten taxa of the genus Tortula

Description

These data are observations on a series of seven morphological variables for individuals in of the Tortula sect. Rurales De Not. (Pottiaceae, Musci.

Usage

data(tortula)

Format

tortula is a data frame of seven morphological measurements on 14 individuals from the genus Tortula.

Taxon

factor; the species of Tortula

Hydroid

logical; presence of hydroid cells

LeafOutline

ordered; shape of the leaf outline

Denticulation

ordered; degree of denticulation

ApexShape

ordered; shape of the leaf apex

Length

numeric, leaf length

Diameter

numeric; leaf diameter

Papillae

numeric; number of papillae per cell

The last three variables are the average of ten replicate samples from the same herbarium capsule.

Source

The data were presented in Podani (1999).

References

Podani, J. (1999) Extending Gower's coefficient of similarity to ordinal characters. Taxon 48, 331-340.

Examples

data(tortula)
head(tortula)
str(tortula)