365 

 Its sclerotium is called Sclerotium semen Fries S. M. II ^'", Syll. 



Is often found on dead leaves of Pteridium, Equisetum, Pinus, Phlox, Cir- 

 sium, Scorzonera etc. 



1724. Typhula gyrans Fries S. M. I ''^^ Syll. VI '"^ Its sclerotia are 

 also called Sclerotium semen Fries, Kornformig Beensvamp (H. 37^'°), 

 Kaalfre Stevbold (Viborg 1793"^). Lit: R04b''". 



Its sclerotia are very much like Sclerotium semen, they often occur 

 in so great abundance on dead leaves that the common people con- 

 sidered them to have been dropped from the air (R 71 ^^) or to be 

 real seeds (see Bergius 1765). They occur particularly in great abun- 

 dance on dead leaves of Brassica (M. L. M. 09 ™, R 03 d ^*') or on 

 turnips in the pits (M. L. M. May 11). Rostrup cultivated the sclerotia 

 (R 66 ^^"') which he had gathered in January 1865, and in January 

 1866 they produced Typhula gyrans. 



Recorded on leaves of Brassica spp., pods of Pisum sativum. J. Viborg 

 ( ! abundantly, sclerotia January, Typhula May), on dead stems of Scorzonera 

 hispanica. F. Skaarup etc. 



^ 1725. Typhula betae Rostrup 81 a '' £. 93 d, Bedens TraadkoUe 

 (R 93 d, 02 a ^■"' 6. 03 d'«', M. L. M. 10^", May 11 &. Oct. 11, F. K. 

 R. 10 b). 



Simplex, 2—5 cm alta, albida, . clavula fusoideo-elongata, glabra, 

 deorsum in stipitem contiguum attenuat'a" et hirsuta, e sclerotio globu- 

 loso, atro, intus albo, oriunda. ■ fxv^ij 



The sclerotia are very much like Sclerotium semen, and the present 

 species is altogether closely connected with the above species. The 

 sclerotia occur in the roots and leaves of Beta vulgaris and so it must 

 be considered a dangerous parasite (F. K. R. 07 a ^°^} ; it was first found 

 near Odense in 1880 and it seems not to have been noticed abroad. 



v 1726. Typhula trifolii Rostrup 90 h c. icon., Kleverens Traadkelle 

 (R 93 d '3 c. icon.). 



It is very much like the above species, but it is somewhat smaller. 

 The sclerotia occur in the stems and leaves of Papilionaceae, parti- 

 cularly in Trifolium. The sclerotia are released by the thrashing aind 

 are mixed with the seed; Rostrup has often found them in samples 

 of the seed of clover from abroad though this fungus has never been 

 mentioned in foreign literature. Rostrup considered it a dangerous 

 parasite, on the other hand M. L. Mortensen (May 1911) does not 

 consider it to be so dangerous. 



On stems and leaves of Trifolium pratense &. repens, Anthyllis vulneraria, 

 Medicago lupulina. Not uncommon. 



