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REMAINING (number with state)
Apothecia disk color
Brown (107)
Black (73)
Red (34)
Gray (14)
Orange (12)
White (9)
Yellow (9)
Blue-gray (4)
Reddish purple (4)
Green (2)
Pink (1)
Apothecia form
Disk, margin (219)
None (146)
Cup (58)
Perithecium (55)
Lirellae (49)
Stalk (41)
Disk, no margin (33)
Disk, sunken (29)
Pin or stubble (7)
Spoon (3)
Apothecia rim color
Gray (59)
Green (36)
Black (33)
White (24)
Brown (8)
Orange (7)
Yellow (7)
Red (2)
Branch cross-section
Round (34)
Flat (15)
Flange (1)
Chlorine turns cortex
Red (4)
Green (1)
Chlorine turns medulla
No (323)
Red (21)
Pink (19)
Yellow (1)
Cilia
None (619)
Unbranched (44)
Branched (7)
Bulbous (4)
Distinctive color
Grey (295)
Green (260)
Brown (75)
White (49)
Black (40)
Yellow (26)
Thallus not or barely visible (16)
Red (12)
Form
Crust (370)
Leaf (220)
Scale (65)
Bush (52)
Stalk (42)
Other (31)
Habitat
Bark (452)
Siliceous rock (151)
Sand or soil (51)
Wood (23)
On lichens (13)
Carbonate rock (9)
Conifers (6)
Palm leaf base (1)
Isidia
None (639)
Present (82)
Ciliate (5)
KOH followed by Chlorine turns medula
No reaction (306)
Red (33)
Pink (20)
Purple (4)
KOH turns medulla
No reaction (277)
Yellow (48)
Yellow turning red (19)
Blood red (16)
Purple (13)
Orange (5)
Pinkish brown (4)
Dark pink (1)
Lobe surface pattern
Solid (242)
White lines (18)
Strongly ridged and wrinkled (15)
With white spots pseudocyphellae (13)
With patches of white pruina (9)
Reticulate cracks (6)
Blistered or warty (3)
Areolate (2)
Lobe width at narrowest
Under 5mm (50)
Over 5mm (34)
Fused (5)
Lobules present
No (303)
Yes (42)
Medulla color
White (269)
Yellow (16)
Red-orange (7)
Photo
No (634)
Yes (82)
Pycnidia
None (207)
Black, surface (40)
Brown (32)
Red (10)
Orange, surface (1)
Soralia position
None (614)
Top (53)
Edge (48)
Diffuse (19)
Tips of lobes (18)
Stalk (16)
Scales (4)
Underside (2)
Soredia color
White (64)
Green (37)
Yellow (18)
Blue-gray (9)
Stalk shape
Branch (27)
Cup (12)
Point (9)
Cup stack (1)
Thallus features
Appearing inflated (2)
Thallus perforated (1)
Thallus underside
Central attachment (4)
Bearing pores (2)
Thallus underside color
Black (127)
White (77)
Uniformly brown (23)
White at edge, black at center (10)
Gray (6)
Orange (6)
Conspicuously veined (4)
UV light on cortex glows
No reaction (342)
Yellow (7)
Blue-white (3)
Orange (3)
UV light on medulla glows
No (351)
Blue/White (15)
Yellow (2)
Orange (1)