FULIGO.] 



PHTSARACE^:. 



65 



pulverulent, globose ; stalks white, thickened at the base, cottony, 

 hollow ; spores purple-black, smooth, globose. Capillitium scanty, 

 yellow. 



Hub. On leaves of Phalcmopsis. Andaman Isles. 



The filmy reticulate mycelium at length disappears, and the peridia 

 are scattered, looking at first sight, from their white stems, like 

 DiaclicBa. The species is altogether distinct from Trichia later itia 

 Lev. The dust of the peridia consists of irregular fragments of a 

 bright orange-red. 



SPECIES EXCLUDED FROM THE GENUS. 



P. cerebrinum Mass. 



P. chrysotrichum Berk. & Curt. 



P. citrinellum Peck. 



P. concinnum Mass. 



P. ellipsosporum Host. 



P. gyrosum Host. 



P. gyrosum Mass, (in part) 



P. hians Mass. 



P. muscorum A. & S. 



P. rufibasis Berk. & Br. 



P. scyphoides Cooke & Balf. 



=. Fuligo septica Gmel. 



= Badhamia dedpiens Berk. & 



Curt. 



= Craterium citrinellum List. 

 = Badhamia lilacina Host. 

 = Fuligo ellipsospora List. 

 = Fuligo septica Gmel. 

 = Badhamia dedpiens Berk. & 



Curt, 



= Physaretta mirabilis Peck. 

 = Fuligo septica Gmel. 

 = Physarella mirabilis Peck. 

 = Craterium leucocephalumDitm. 



The following species of Physarum are rejected by Rostafixiski 

 on sufficient grounds (Host., Mon., p. 304) :- 



P. antiades Fr. 



P. atrum Fr. 



P. connatum Schum. 



P. elongatum Link. 



P. Jlavo-virens A. & S. 



P. fimetarium Schum. 



P. hypnophilum Fr. 



P. piceum Fr. 



P. purjmrascens Link. 



P. stipitatum Chev. 



P. villosum Schum. 



Genus 4. FULIGO Haller, Hist, Stii-p. Helv., iii., p. 110 

 (1768). Sporangia elongated, branching and interwoven, com- 

 bined into a pulvinate or effused sethalium ; the outer layei 

 forming a cortex charged with deposits of lime-granules, without 

 spores ; the inner stratum containing the spores and a well- 

 developed capillitium, with few or many lime-knots ; the lowei 

 layer forming a skin-like hypothallus. 



