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Hypotrachyna
Family: Parmeliaceae
Hypotrachyna image
daphne stone
  • Greater Sonoran Desert
  • Resources
Nash, T.H., Ryan, B.D., Gries, C., Bungartz, F., (eds.) 2002. Lichen Flora of the Greater Sonoran Desert Region. Vol 1.
Life habit: lichenized Thallus: tightly to loosely adnate, foliose, often dichotomously lobate lobes: usually sublinear, sometimes subirregular or linear-elongate, sometimes imbricate; axils: sinuous or V-shaped; lobe tips: usually subtruncate, but sometimes rounded, incised or not, cilia absent or rarely short ciliate upper surface: gray, ivory or yellow green, smooth, plane to rugulose, shiny or dull, sometimes white maculate, usually epruinose, pseudocyphellae absent upper cortex: pored epicortex, palisade paraplectenchymatous medulla: white or rarely partially yellow or orange, cell walls containing isolichenan photobiont: primary one a Trebouxia, secondary photobiont absent lower surface: black, sometimes with brown tips, plane to sometimes wrinked, rarely subcanaliculate, attachment by dichotomous rhizoid holdfasts, without cyphellae, pseudocyphellae or tomentum Ascomata: apothecial, imperforate, laminal, orbicular, cup-shaped, sessile or subpedicellate; margin: prominent with thalloid rim; exciple: gray or hyaline; epithecium: brown or brownish yellow; hypothecium: hyaline asci: lecanoral, apex I+ blue, with wide, axial body divergent towards apex, 8-spored ascospores: simple, ellipsoid to broadly ellipsoid; wall: thin, hyaline Conidiomata: pycnidial, laminal to marginal, immersed conidia: bacilliform or weakly bifusiform, 5-8 x 1 µm Secondary metabolites: upper cortex with either atranorin and chloroatranorin (gray), lichexanthone (ivory), or usnic acid (yellow-green); medulla with some combination of orcinol depsides, orcinol depsidones, ß-orcinol depsides, ß-orcinol depsidones, (higher) aliphatic acids, rarely triterpenoids, anthraquinones, xanthones, and dibenzofurans Geography: predominantly tropical, montane to subalpine, but some species also occurring in temperate areas (particularly in maritime influenced regions) Substrate: mostly on bark or acidic rocks, rarely on compacted soil. Notes: Although all the species in the Sonoran region are gray and have atranorin or rarely lichexanthone or isousnic acid in the upper cortex, there are a few yellow species, particularly in the tropics, with usnic acid in the upper cortex. Previously Hypotrachyna was treated as a section of Parmelia by Vainio (1890) and later raised to a subgenus (Hale and Kurokawa 1964). As it became clear that this large, predominately tropical group of lichens was quite different from the temperate to arctic Parmelia s.s, it was finally raised to the genus level (Hale 1974a), a status that is widely recognized today. Key characters for the genus include subtruncate lobe apices, lack of marginal cilia, dichotomously branched rhizines and bifusiform conidia.
Species within checklist: Panama
Hypotrachyna adjuncta
Image of Hypotrachyna adjuncta
Map not
Available
Hypotrachyna boquetensis
Image of Hypotrachyna boquetensis
Map not
Available
Hypotrachyna caraccensis
Image of Hypotrachyna caraccensis
Map not
Available
Hypotrachyna chlorina
Image of Hypotrachyna chlorina
Map not
Available
Hypotrachyna cirrhata
Image of Hypotrachyna cirrhata
Map not
Available
Hypotrachyna costaricensis
Image of Hypotrachyna costaricensis
Map not
Available
Hypotrachyna dactylifera
Image of Hypotrachyna dactylifera
Map not
Available
Hypotrachyna densirhizinata
Image of Hypotrachyna densirhizinata
Map not
Available
Hypotrachyna enderythraea
Image of Hypotrachyna enderythraea
Map not
Available
Hypotrachyna endochlora
Image of Hypotrachyna endochlora
Map not
Available
Hypotrachyna ensifolia
Image of Hypotrachyna ensifolia
Map not
Available
Hypotrachyna erythrodes
Image of Hypotrachyna erythrodes
Map not
Available
Hypotrachyna formosana
Image of Hypotrachyna formosana
Map not
Available
Hypotrachyna imbricatula
Image of Hypotrachyna imbricatula
Map not
Available
Hypotrachyna isidiocera
Image of Hypotrachyna isidiocera
Map not
Available
Hypotrachyna laevigata
Image of Hypotrachyna laevigata
Map not
Available
Hypotrachyna longiloba
Image of Hypotrachyna longiloba
Map not
Available
Hypotrachyna massartii
Image of Hypotrachyna massartii
Map not
Available
Hypotrachyna meridensis
Image of Hypotrachyna meridensis
Map not
Available
Hypotrachyna microblasta
Image of Hypotrachyna microblasta
Map not
Available
Hypotrachyna minarum
Image of Hypotrachyna minarum
Map not
Available
Hypotrachyna neocirrhata
Image of Hypotrachyna neocirrhata
Map not
Available
Hypotrachyna neodissecta
Image of Hypotrachyna neodissecta
Map not
Available
Hypotrachyna palmarum
Image of Hypotrachyna palmarum
Map not
Available
Hypotrachyna partita
Image of Hypotrachyna partita
Map not
Available
Hypotrachyna physcioides
Image of Hypotrachyna physcioides
Map not
Available
Hypotrachyna prolongata
Image of Hypotrachyna prolongata
Map not
Available
Hypotrachyna protenta
Image of Hypotrachyna protenta
Map not
Available
Hypotrachyna pulvinata
Image of Hypotrachyna pulvinata
Map not
Available
Hypotrachyna pustulifera
Image of Hypotrachyna pustulifera
Map not
Available
Hypotrachyna reducens
Image of Hypotrachyna reducens
Map not
Available
Hypotrachyna revoluta
Image of Hypotrachyna revoluta
Map not
Available
Hypotrachyna rockii
Image of Hypotrachyna rockii
Map not
Available
Hypotrachyna sinuosa
Image of Hypotrachyna sinuosa
Map not
Available
Hypotrachyna spumosa
Image of Hypotrachyna spumosa
Map not
Available
Hypotrachyna steyermarkii
Image of Hypotrachyna steyermarkii
Map not
Available
Hypotrachyna sublaevigata
Image of Hypotrachyna sublaevigata
Map not
Available
Hypotrachyna taylorensis
Image of Hypotrachyna taylorensis
Map not
Available
Hypotrachyna vexans
Image of Hypotrachyna vexans
Map not
Available

 

This project made possible by National Science Foundation Awards: #1115116, #2001500, #2001394
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