386 



Common on many different trees. Salix cinerea, alba, grandifolia, Populus 

 alba, candicans, deltoides, Betula alba, Fagus silvatica, Aesculus hippocastanum, 

 Pirus mains, Samhucus nigra. 



1864. Polyporus annosus Fries S. M. I "^ Epicr. "\ Hym. ^^\ 

 Icon, select. I^»^ not El. I ">^ (= Pol. roburneus), R % o ^^=, Syn: 

 Fomes ann. Sacc, Syll. VI^" &. Syll. XVir^", Heterobasidion ann. Bref. 

 Unt. VIII '■", Boletus scutatus (Hoffm.) Pers. Myc. europ. II ^\ Poria 

 scut. Hoffm. Vegetabilia in Hercyniae subterraneis collecta iconibus 

 tab. IX 6^ X (optim.), Polyp, scut. Harz in Allesch. &. Schnabl.s 

 Exsicc. no 432, Polyp, undatus (Pers.), Polyp, subpileatus Weinm., 

 Polyp, serpentarius (Pers.), Pol. scoticus Klotsch in Smith. Engl. Flora 

 V"^ Polyp. Gillotii Roum. Rev. Myc. Octob. 1882, Poria makraola 

 Rostk., Syll. VI ^°\ Boletus cryptarum Bull., Sebum, no 1965, Polyp, 

 crypt. Fries S. M. I "^ El. D. tab. 1963, Fomes crypt. Sacc, Syll. VI '°^ 

 Trametes radiciperda Hartig, Polyporus radic. Rostrup 79 b *^, 02 a ^^^ 

 Skjult Poresvamp (H. 37 »"'), Rodens Trsesvamp (R 79 b ^^), Rod- 

 fordjerveren (R 81 b ^ & 83 a), Lit: R 79 b "^ 80 a 1^^ 81 b \ 83 a, 

 84 d "^ 90 a '^\ 93 a, 93 g, 93 o, 96 o i", 96 h, 96 q, 98 a ^ c. icon., 02 a, 

 02 z, 06 k, Henning 95 ^', Schotte 08, Neger 06. 



I have been obliged to deviate from the rule I have followed as to 

 all the other said species: only to state the synonyms contained in 

 Danish books or used in Saccardo's Sylloge, because I have in no 

 other place found the different names which have been applied to 

 this fungus in the course of time. On account of its obscure life it has 

 only during recent years become sufficiently known how great a 

 damage it causes to the trees of the forests. Rostrup particularly has 

 the merit of having examined the attacks of this fungus on Danish 

 forest- trees; he was the first to discover that it might attack Fagus sil- 

 vatica (R 93 g). There is much to indicate that it is much more noxious 

 in Denmark than in the neighbouring countries; half of all Danish 

 firs are destroyed by this fungus. 



Abies alba (rare see R 90 a '"5, Henning 95 ■"). Abies balsamea. J. Palsgaard 

 Plantage. Larix decidua (rare see R 83 a ^). Picea excelsa, alba, sitchensis, Men- 

 ziesii. Pinus silvestris, montana, australis, strobus, Banksiana. Pseudoisuga 

 Douglasii. Thuja occidentalis. Juniperus communis (see R 96 q). Betula alba,. 

 Fagus silvatica, Ulmus montana, Sorbus aucuparia, scandica, Crataegus mono- 

 gyna &. oxyacantha (R 96 h, 02 z., 06 k), Pirus communis, Prunus avium (R 

 93 o), Calluna vulgaris (Wielandt 07), Fraxinus excelsior. 



1865. Polyporus vulpinus Fries S. M. P*\ Syn: Polystictus vulp. 

 Sacc, Syll. VI ^'", Polyp, rheades Pers. Myc. europ. II *' (see Bresadola 

 08 ''), Inonotus Hisingeri Karsten 82 «- 



On trunks and branches of Populus tremula. J. Harrestrup (^^/g 85), Skovs- 

 gaard near Viborgl. Sorbus aucuparia. S. Zoologisk Have (Frederiksen). 



