DERIVATION OF THE FLORA AND FAUNA 291 



I. Antarcto-tertiary element. — 58 sp. (35.4 %). 

 b, Austral-bicentric; t, Austral-tricentric species. 



a. Endemic species (5): Psoroma vulcanicum, cephalodinum, dasycladum and 

 angustisectum, Pseudocyphellaria berteroana. 



b. Non-endemic (53): Sphaerophorus melanocarpus, Phaeographina scalpturata 

 (b), Byssocaulon niveum (b), Leptogium phyllocarpum (b), Parmeliella nigrocincta (t) 

 and pycnophora, Pannaria fuegiensis and rubiginosa (b), Massalongia carnosa, Psoroma 

 pholidotum and sphinctrinum (b), Lobaria crenulata (b), Pseudocyphellaria argyracea 

 (t), intricata (b), fragillima (b), subvariabilis (b), chloroleuca (b), cinnamomea (b), hir- 

 suta, Guillemini, gilva (t), mougeotiana, aurata (t), nitida, endochrysea (b), Durvillei 

 (b), flavicans (b), Freycinetii (b) and Richardi (b), Sticta Weigelii (b), lineariloba, 

 latifrons (b) and laciniata, Nephroma plumbeum, cellulosum (b), antarcticum (b) and 

 australe (b), Catillaria melastegia (b), Megalospora versicolor (b), Phyllopsora parvifolia 

 (b), Cladonia pycnoclada, didyma (b) and aggregata (t), Stereocaulon patagonicum, 

 ramulosum (b) and implexum (b), Coccotrema granulatum (b), Lecanora albellina, 

 Placopsis chilena, fuscidula (b) and parellina (b), Myxodictyon chrysostictum (b), 

 Buellia halophila (b). 



II. Andean tropical to temperate element. — 54 sp. (32.9 %). 



a. Endemic species (9): Arthonia subnebulosa and berberina, Enterostigma 

 Skottsbergii, Coenogonium velutinum, Lecidea avium, Pertusaria hadrocarpa and 

 Skottsbergii, Lecanora masafuerensis, Caloplaca orthoclada. 



b. Non-endemic (45): Arthopyrenia cinchonae, adnexa and planorbis, Pyrenula 

 aspistea, mammillana and Kunthii^, Pyrenastrum chilense, Arthonia complanata, 

 Graphis intricata and Dumastii, Dirinalimitata, Schismatommaaccedens, Thelotrema 

 lepadinum, Dimerella lutea, Physma chilense, Leptogium moluccanum, tremelloides, 

 cyanescens, Menziesii and callithamnion, Lecidea leucoplaca and icterica, Catillaria 

 endochroma and leucochlora, Bacidia endoleuca and subluteola, Toninia bullata, 

 Lopadium leucoxanthum, Baeomyces chilensis, Acarospora xanthophana, Per- 

 tusaria polycarpa, Melanaria melanospora, Parmelia laevigatula, abstrusa, nilgher- 

 rensis, soredica and microsticta, Menegazzia sanguinascens, Usnea angulata, Bom- 

 byliospora dolichospora, Caloplaca subcerina, Theloschistes flavicans, Physcia picta, 

 Anaptychia pectinata, Cora pavonia. 



III. Boreal element. — 14 sp. (8.5 %). 



a. Endemic: Lemmopsis polychidioides. 



b. Non-endemic (13): Verrucaria microspora, Arthonia cytisi,Gyalecta jenensis, 

 Pachyphiale cornea, Racodium rupestre, Lecidea enteroleuca and viridans, Bacidia 

 arceutina, Acarospora smaragdula, Lecanora dispersa and saxicola, Parmelia pilosella, 

 Buellia concinna. 



IV. Pantemperate-Bipolar to Cosmopolitan element. — 38 sp. (23.2 %). 



Normandina pulchella, Diploschistes actinostomus and scruposus, Peltigera 

 rufescens and polydactyla, Lecidea latypea and mutabilis, Catillaria intermixta. 



