The Hypogymnia Species of North America

Hypogymnia wilfiana

Click on Characteristic name for explanation. Click on image for larger version.

Overview

Synopsis: Small, appressed, contiguous lobes forming neat rosettes; lobes imperforate; ceiling of cavity white to brown, floor dark; medulla K+ slow reddish brown, P-.
Distribution: Washington, BC (Ohlsson 1973). BC and Alberta s to Oregon, Idaho and Montana
Habitat: temperate oceanic to suboceanic forest
Range: Northern Rocky Mountains, Pacific Northwest, Pacific Northwest Immediate Coast
Abundance in North America: Present
Substrate: Typically
Host: Conifers and hardwoods, both bark and wood
On Rock: Never
On Moss/Detritus/Sod: Never
Authority: Goward, T.Sprib. & Ahti
References: Goward et al. (2010)
Synonymy: Hypogymnia metaphysodes (North America), Hypogymnia recurva
Hypogymnia wilfiana - Habit
Habit

Vegetative Structures

Habit Appressed: Almost always
Habit Pendulous: Never
Habit Erect to Suberect: Rarely
Size (cm): Mean: 8 SD: 4
Upper Color- White to Greenish Gray: White to greenish gray
Upper Surface Brown when Solarized: Blackish or unknown
Dark Mottles: None or rare
Black Border: Sometimes present
Lobes Separated: Contiguous
Lobe Outline: No elongate lobes
Upper Surface Texture: Smooth to weakly rugose
Branching: Variable
Budding: Present
Lobe Width (mm): Mean: 1.25 SD: 0.375
Lobe Tips, Axils, and/or Lower Surface Perforated: Rarely
Lobe Tips Perforated: Rarely perforate
Lower Surface Perforated: Rarely perforate
Cavernulae: Never
Thallus Texture: Cartilaginous
Medulla: Almost always
Ceiling Color: White or dark
Floor Color: Dark
Hypogymnia wilfiana - Habit
Habit
1/9
Hypogymnia wilfiana - Habit
Habit
2/9
Hypogymnia wilfiana - Habit
Habit
3/9
Hypogymnia wilfiana - Habit
Habit
4/9
Hypogymnia wilfiana - Habit
Habit
5/9
Hypogymnia wilfiana - Lobe cavity
Lobe cavity
6/9
Hypogymnia wilfiana - Habit
Habit
7/9
Hypogymnia wilfiana - Habit
Habit
8/9

Reproductive Structures

Soredia: None
Schizidia: Rarely
Isidia: None
Lobules: None
Apothecia: Common
Spore Length (µm): Mean: 5.55 SD: 0.275 Max: 6.1 Min: 5
Spore Width (µm): Mean: 4.85 SD: 0.175 Max: 5.2 Min: 4.5
Pycnidia: Common
Hypogymnia wilfiana - Ascospores
Ascospores
1/4
Hypogymnia wilfiana - Apothecia pedicels
Apothecia pedicels
2/4
Hypogymnia wilfiana - Apothecia
Apothecia
3/4
Hypogymnia wilfiana - Apothecia pedicels
Apothecia pedicels
4/4

Chemistry