200 MICROSCOPIC FUNGI. 



iEcidmm Dracontii, Schwein. Arum Cluster-Cups; 

 spots pallid, extensively scattered over the leaves, sometimes 

 nearly covering them; peridia large, scattered, abundant, disposed 

 without order on the spots; spores orange. — On Arum triphyllum, 

 in gardens. Melbury, 1863 {Rev. M. J. B.) A North American 

 species. 



JEcidium Allii, Grev. Garlic Cluster-Cups ; spots 

 pale; peridia circinating, not contiguous; spores yellowish. 

 — On leaves of broad-leaved Garlic {Allium ursinuni). June and 

 July. 



iEcidmm Orchideamm, Fiedl. Orchis Cluster-Cup ; 

 spots large, pallid, orbicular or elongated; peridia circinating, 

 semi-immersed; spores golden-yellow.— (Jo Orchis latifolia. 

 J me and July. 



iEcidiTim incarceratum, B. and Br. Sori minute, crowded 

 in irregular spots ; periciia included in the parenchyma of the 

 leaf; pseudospores pallid. On leavA^ of Sagittaria. 



Endophtllum, Lev. 



Peridium enclosed within the substance of the leaf, bursting 

 irregularly. 



Endophyllum Sempervivi, Lev.; peridia immersed, 

 elliptic or roundish ; spores ochraceous, becoming brownish.— On 

 leaves of Houseleek. 



PUCCINIiEI. 



a. Spores stipitate. 



Spores multiseptate — 

 moniliform . . 

 cylindrical . . 

 biseptate . . 

 uniseptate .. 

 simple 



Xenodochus. 



Aregma. 



Triphragmium. 



Puccinia. 

 Uromyces. 



b. Spores immersed in gelatine. 



Stroma tremelloid and expanded. . . . Gymnosporangium. 

 clavate or club-shaped .. .. Podisoma. 



