FIG. 



PLATE 1 



PAGE 



MELOSEIRA 



1-2 Meloseira crenulata (Ehr.) Kuetz 15 



3-4 Meloseira roeseana var. epidendron (Ehr.) Grun 15 



5-6 Meloseira roeseana Rab 15 



8-9 Meloseira distans (Ehr.) Kuetz 14 



10 Meloseira granulata (Ehr.) Kail's 15 



1 1-12 Meloseira sulcata Kuetz 15 



15-16-17 Meloseira undulata (Ehr.) Kuetz 15 



GAILLONELLA 



13-14 Gaillonella nummuloides (Dillw.) Bory 16 



LYSIGONIUM 



7 Lysigonium moniliforme (Muell.) Link 16 



18-19 Lysigonium varians (Ag.) De Ton! 17 



HYALOD1SCUS 



20 Hyalodiscus scoticus (Kuetz.) Grun 18 



21 Hyalodiscus radiatus var. arctica Grun 17 



22 Hyalodiscus stelliger Bail 17 



NOTE. -The figures in all of the plates, except when otherwise 

 noted, are magnified 800 diameters. 



