CHROMOSPOKIUM. 275 



Fam. I. MUCEDINEAE. Link. 



Sect. I. AMEROSPORAE. Saec. 



Subsect. 1. Micronemeae. Sacc. 



Tribe 1. Chromosporieae. Sacc. 



CHROMOSPORIUM. Corda. (fig. 15, p. 313.) 



Hyphae at first creeping on the substratum, thin, soon 

 disappearing: conidia forming an effused, powdery layer, 

 bright coloured (not brown or blackish). 



Chromosporium, Cda. ; Sturm, Deutsch. Crypt., iii. 2, p. 119 ; 

 Sacc., Syll., vol. iv. p. 6. 



When mature consisting of an effused powdery stratum of 

 bright-coloured conidia, with only traces of hyphae or none. 

 Analogous to the genus Coniosporium in the Dematieae. 



Chromosporium lateritium, Sacc. (fig. 15, p. 313). 

 Effused and forming a powdery bright brick-red layer, 



FIGURES ILLUSTRATING THE MUCEDINEAE. 



Fig. 1, Oospora favorum; Fig. 2, Manilla aurea; Fig. 3, Cylindrium 

 Cordae ; Fig. 4, Oedocephalum laeticolor, fertile bead and free conidium ; 

 Fig. 5, Oedocephalum Preussii, fruiting heads and a free conidium ; 

 Fig. 6, Ehinotrichum niveum ; Fig. 7. Botrytis corolligenum ; Fig. 8, 

 Ovularia veronicae ; Fig. 9, Verticillium distans ; Fig.| 10, Spicaria 

 clegans ; Fig. 11, Mycogone cervina; Fig. 12, Gonatobotrys flava; 

 Fig. 13, Nematogonium aurantiacum ; Fig. 14, Trichothecium roseum; 

 Fig. 15, Diplosporium album; Fig. 16, Arthrobotrys rosea, and free coni- 

 dium ; Fig. 17, Didymaria Ungeri ; Fig. 18, Sostrichonema alpestre ; 

 Fig. 19, Helicomyces tubulosus, showing coiled septate conidium ; Fig. 20, 

 Aspergillus glaucua; Fig. 21, section of head of same: Fig. 22, Penicil- 

 lium glaucum ; Fig. 23, Cephalosporium acremonium, twining round a 

 black mould ; Fig. 24, Dactylaria orchidis ; Fig. 25, Dactyldla implexa ; 

 Fig. 26, Dactylium dendroides ; Fig. 27, Eamularia prateneig; 

 Fig. 28, Ramularia hdlebori. (The figures are highly magnified.) 



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