200 



MICROSCOPIC FUNGI. 



-Scidium Dracontii, Schwein. Arum Cluster-Cups; 

 sputs pallid, extensively scattered over the leaves, sometimes 

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

 without order on the spots; spores orange.— On Arum triphyllura^ 

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

 species. 



^cidium Allii, Grev. Garlic Cluster-Cups ; spots 

 pale ; peridia circinating, not contiguous ; spores yellowish. 

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

 July. 



-Slcidium Orchidearum, Fiedl. Orchis Cluster-Cup ; 

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

 f^pmi-immer^ed ; spores golden-yellow,— On Orchis latifolia. 

 J 'lie and July. 



-ffilcidium incarceratum, B. and Br. Sori minute, crowded 

 in irregular spots; periciia included in the parenchyma of the 

 leaf; pseuaospores pallid. On leavA. of Sagittaria. 



Endophyllum, 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. 



PUCCINI^ I. 



a. Spores stipitate. 



Spores multiseptate — 



moniliform . . .. .. .. Xenodochus. 



cylindrical . . . . . . . . Arerjma. 



biseptate .. .. •• .. Triphragmium, 



uni&eptate.. .. .. .. Puccinia. 



simple . . . . . . . . Uromyces. 



b. Spores immersed in, gelatine. 



Stroma tremelloid and expanded.. .. Gymnosporangiurii. 

 clavate or club-shaped . . . . Podisoma. 



