|Lichen determination keys
- Hyperphyscia -
COMPILED, PROVISIONAL KEY TO THE SPECIES OF HYPERPHYSCIAwith short diagnoses
by H. Sipman, 3 October 2002 / general remarks
1a Vegetative propagules present --- 2
1b Vegetative propagules absent --- 13
2a Soralia present, laminal or marginal --- 3
2b Granules present, marginal, developing into more or less coralloid structures --- 11
2c Isidia present, laminal, cylindrical or globular, then of similar size to soredia but corticate and not grouped in soralia --- 12
2d Phyllidia present, marginal
3a Medulla completely or largely orange to red --- 4
3b Medulla white (spots of orange pigment may be present in or near the lower cortex) --- 6
4a Lower surface ochraceous to brownish; known only from Japan(Soralia present, laminal or submarginal, capitate; marginal lobes 0.5-1.3 mm wide; upper surface greenish grey to greyish green, turning ochraceous in the herbarium; medulla orange-red or partly white; lower surface ochraceous to brownish; ascospores of Pachysporaria-type, dark brown, 16-20 x 7-8 mu; pycnoconidia 17-20 mu long; chemistry: skyrin, zeorin, indet. substance. - Japan) --- Hyperphyscia crocata Kashiw.
5a Upper surface olivaceous grey; upper cortex sometimes flaking and revealing the medulla; black prothallus visible(Soralia present, laminal, maculiform, not capitate, becoming confluent and covering the central part of the thallus, greenish grey; upper cortex sometimes fragile, flaking off and revealing the medulla; marginal lobes 0.5-1 mm long, 0.3-0.5 mm wide; upper surface brownish grey, shiny; medulla orange; lower surface orange- to dark brown or black, without rhizines; ascospores 1-septate, 15-22 x 8-12 mu; chemistry: terpenoids and skyrin. - Venezuela (Caracas), Surinam) --- Hyperphyscia pyrithrocardia (Müll. Arg.) Moberg & Aptroot
6a (3) Marginal lobes to 4 mm wide, often ascending and concave; soralia initially usually marginal(Soralia present, submarginal to marginal, rarely laminal, capitate, mostly scattered, sometimes covering central parts; marginal lobes of variable width, 0.4-3.5 mm, overlapping each other laterally, often concave; upper surface greyish green to brownish grey, not pruinose; medulla white; lower surface whitish to blackish; ascospores of Pachysporaria-type, 19-24 x 10-11 mu; pycnoconidia 15-20 mu long; chemistry: no substances. - Argentina, Brazil (Sao Paulo), Kenya, South Africa) --- Hyperphyscia cochlearis Scutari
7a Soralia initially laminal --- 8
7b Soralia initially marginal --- 9
8a Black prothallus absent; soralia often somewhat capitate(Soralia present, maculiform, crateriform to somewhat capitate, starting as small protrusions on the lobes, sometimes becoming distinctly capitate on lobules, when abundant covering central parts of the thallus; usually no visible prothallus; marginal lobes 0.3-0.5 mm wide; upper surface pale- to dark olivaceous grey or pale brownish grey, sometimes (not in Europe) more strongly brownish, to brown or dark brown, rarely pruinose, not shiny; medulla white, occasionally with orange spots on lower side; lower surface pale to brownish near margin, black centrally; ascospores of Pachysporaria- to Physcia-type, 14-20 x 7-10 mu; pycnoconidia 15-20 mu long; chemistry: none (or skyrin). - widespread in tropical and subtropical areas) --- Hyperphyscia adglutinata (Flörke) H.Mayrhofer & Poelt
9a Ascospores (2-)3(-4)-septate; known from SE Brazil to Argentina(Soralia present, very variable, mostly submarginal to marginal, sometimes terminal or laminal, punctiform to globose or lip-shaped, up to ca. 1 mm diam., often confluent and forming sorediate patches or linear, marginal soralia; blackish prothallus present or absent; marginal lobes of variable width, to 2 mm wide, usually overlapping each other laterally, sometimes concave; upper surface greyish olivaceous to pale olivaceous; medulla whitish; lower surface dark greyish brown, paler near the margins; ascospores of Conradia-type, (2-)3(-4)-septate, (19-)20-24(-26) x (9-)10-11(-12) mu; pycnoconidia 11-17 mu long; chemistry: none. - Brazil (Rio Grande do Sul), Argentina) --- Hyperphyscia variabilis Scutari
10a Thallus usually pruinose, brownish; pycnoconidia 11-15 mu long; widespread(Soralia present, starting as marginal, delimited patches on inner lobes, more or less confluent and covering central part of thallus with granular to almost isidium-like soredia; marginal lobes to 1 mm wide, usually narrower; upper surface brown to dark brown, rarely grey-brown, mostly with white to blue-grey pruina which becomes maculate at the lobe tips; medulla white; lower surface black, greyish brown near the margins; ascospores of Pachysporaria-type, rarely of Physcia-type, 15-21 x 7-11 mu; pycnoconidia 11-15 mu long. - East Africa, Australia) --- Hyperphyscia pruinosa Moberg
11a (2) Ascospores 3(-4)-septate(Granular to coralloid, ca. 50 mu wide appendices present along lobe margins; marginal lobes indistinct, to 0.5 mm wide, inner lobes ascending to erect; upper surface [grey?]; medulla white; lower surface black, without rhizines; ascospores of Conradia-type, 3(-4)-septate; chemistry: none. - Argentina (Buenos Aires), Brazil (Rio Grande do Sul)) --- Hyperphyscia coralloides (Lynge) Scutari
12a (2) Isidia globular, resembling soredia but corticate and not grouped in soralia(Isidia present, globular, in thallus centre; dark prothallus sometimes present; marginal lobes 2-3 mm long, 0.2-0.8(-1) mm wide; upper surface olivaceous grey to grey-brown or brown, with weak yellowish tinge, not pruinose, shiny; medulla white, often with orange spots, mainly in lower part; lower surface black, paler towards the margins; ascospores of Pachysporaria-type, rarely of Physcia type, 18-21 x 8-1 mu; Pycnoconidia 15-20 mu long; chemistry: skyrin, terpenoid. - Nepal, East Africa, Argentina) --- Hyperphyscia granulata (Poelt) Moberg
13a (1) Marginal lobes over 3 mm wide; ascospores 3-6(-8)-septate(Vegetative propagules absent; marginal lobes 4-12 mm wide; upper surface greyish-fawn or dirty greenish-grey, matt, scabrid or subpruinose in parts; [medulla white?]; lower surface pale or brown, rhizinate; ascospores of Conradia-type, 3-6(-8)-septate, (20-)27-44 x 11-24 mu, ellipsoid or oblong. - New Zealand) --- Hyperphyscia plinthiza (Nyl.) Müll. Arg.
14a Medulla orange to red(Vegetative propagules absent; marginal lobes <1 mm wide; upper surface blue-greenish, in the herbarium with olivaceous tinge, glossy or mat, not pruinose; medulla at least in part orange to orange-red; ascospores of Pachysporaria-type, (13-)19-21 x 6-10 mu; pycnoconidia 15-20 mu long; chemistry: skyrin and/or other pigments. - Argentina (Buenos Aires), Uruguay, Mexico) --- Physcia endochrysea Kremp.
15a Apothecium margin ciliate(Vegetative propagules absent; marginal lobes linear, ca. 0.7-1.2 mm wide; upper surface greyish with an olivaceous tinge; medulla white; lower surface whitish, with sparse but well developed rhizines often projecting beyond the margin; apothecium margin mostly ciliate; ascospores of Physcia-type, 17-21 x 9-10 mu; pycnidia 15-20 mu long; chemistry: none. - Peru (Ancash), only type known) --- Hyperphyscia coronata Scutari
16a Ascospores 1-septate(Vegetative propagules absent, central part of thallus often verrucose; marginal lobes of variable width, to 2 mm wide; upper surface grey-brown to dark brown, sometimes weakly pruinose, occasionally densely pruinose; medulla white; lower surface dark brown to black, paler to white near the margins; ascospores mostly of Pachysporaria-type, sometimes of Physcia-type, 15-21 x 7-11 mu; pycnoconidia 15-20 mu long; chemistry: none. - N-, South America, East Africa) --- Hyperphyscia syncolla (Nyl.) Kalb
17a Ascospores 17-22 mu long(Vegetative propagules absent; marginal lobes to 1(-1.5) mm wide; black prothallus present or absent; upper surface blue-grey to greenish brown, not pruinose; medulla white; lower surface ?; ascospores of Conradia-type, 3(-4)-septate, 17-22 x 6-11(-16) mu; pycnoconidia 15-20 mu long; chemistry: none. - Argentina, Uruguay, Brazil (Rio Grande do Sul)) --- Hyperphyscia viridissima (Müll. Arg.) Scutari
General remarks / key
This key treats all taxa accepted in recent publications. It is a compilation of the information presented in these papers. Herbarium material in B has been studied for a better understanding of the descriptions and for the delimitation of H. pyrithrocardia. Character statements in [ ] are guessed or based on herbarium study. These studies suggest that the taxonomy of the genus is still far from settled and delimitation problems exist even in the widely accepted species H. adglutinata.
(syn. Physciopsis) Thallus foliose, deeply incised, mostly closely applanate, with distinct marginal lobes and often subcrustose center, without or with scarce, short rhizines (hapters); upper cortex paraplectenchymatous; lower cortex prosoplectenchymatous, indistinctly delimited from the medulla; ascospores of Physcia-, Pachysporaria- or Conradia-type, 1-3-septate (-submuriform); chemistry: no atranorin in the upper cortex; usually no medullary substances except sometimes skyrin.
© Botanischer Garten und
Botanisches Museum Berlin-Dahlem, Freie Universitšt Berlin
page editor: Harrie Sipman, this page last updated 3 Oct. 2002, imprint