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Alectoria sarmentosa (Ach.) Ach.  
Family: Parmeliaceae
Alectoria sarmentosa image
Stephen Sharnoff  
Thallus: pendent, flaccid except at the base, 20-40 (-80) cm long, with a persistent base branching: mainly isotomic dichotomous, frequent from the base, axils acute or obtuse, often rounded branches: terete often becoming compressed and angular to foveolate towards the base and at the axils, 0.5-2.0 (-2.5) mm diam. surface: greenish gray to bright golden yellow, sometimes becoming striately blackened in parts; lateral spinules: absent soredia: in irregularly tuberculate soralia, rare in North American material pseudocyphellae: white, abundant, conspicuous, raised, elongate fusiform to ovoid and tuberculate, clearly delimited, usually c. 1 mm long Apothecia: often abundant, lateral; thalline exciple: concolorous with thallus, usually persistent; disc: orange-yellow to dark brown or black, 2-3 (-5) mm in diam., asci: clavate-ovoid, 2-3 (-4)-spored ascospores: ellipsoid, simple, 23-35 (-48) x (12-) 15-20 (-25) Ám Pycnidia: sometimes frequent, mainly apical, up to c. 2.0 mm diam., black and shining conidia: not seen Spot tests: cortex K-, C-, KC+ yellow, P-, UV- (sometimes K+ red, C+ green-black near the base); medulla K- (rarely K+ yellow), C- or slowly becoming yellow, KC+ red or KC-, P- (rarely P+ yellow), UV+ ice-blue or UV- Secondary metabolites: cortex with usnic acid, and occasionally an unidentified K+ red, C+ green-black substance; medulla usually with alectoronic acid (major), thamnolic, squamatic and barbatic acids (all accessory) but a common chemotype lacks all secondary metabolites except usnic acid. Substrate and ecology: on a variety of conifers, particularly in moist, lowland forests along the west coast, less often inland World distribution: central and northern Europe, North America and South America (Patagonia) Sonoran distribution: probably extinct, reported from collections in the San Bernardino Mountains of southern California in 1929.
Alectoria sarmentosa image
Lucy Taylor  
Alectoria sarmentosa image
Stephen Sharnoff  
Alectoria sarmentosa image
Stephen Sharnoff  
Alectoria sarmentosa image
Stephen Sharnoff  
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