38 



Cincinnati Society of Natural History. 



work ; the tubules filled with lime throughout their whole 

 extent. Spores large, subglobose, dark reddish-brown. 



This genus differs from Badhamia by the columella which 

 gives origin to the capillitium. The sporangia in the species 

 composing it, resemble those of Craterium, and to this genus 

 they are referred by Massee, but the capillitium is that of 

 Badhamia. 



I - . Scyphium rubiginosum Chev. Sporangia gregarious, 

 obovoid, stipitate; the wall a thickened reddish-brown mem- 

 brane, the upper part covered by a thin layer of white 

 granules of lime, the lower basal portion naked, strongly 

 venulose and more persistent. Stipe long, erect, reddish- 

 brown, expanding at the base into a brown hypothallus, pro- 

 longed within the sporangium to more than half its height as 

 a columella. Capillitium of thick tubules, forming a dense 

 net-work of small meshes ; the tubules stuffed with white 

 granules of lime. Spores irregularly globose, minutely 

 warted, dark reddish-brown, 12-15 m i c - in'diameter. 



Growing on old wood, mosses, etc. Sporangia .6-. 8 mm. in 

 height by .5-. 6 mm. in diameter, the stipe from once to twice 

 the height of the sporangium. This is Physarunt rubigin- 

 osum Chevallier, Flor de Paris. It is also Craterium obova- 

 tum Peck. 



2. Scyphium curtisii Berk. Sporangia oblong-obovoid, 

 stipitate or subsessile, usually growing in clusters ; the wall 

 a thick, firm, reddish-brown membrane, venulose and reticu- 

 late, nearly destitute of lime. Stipes variable, commonly 

 very short, sometimes confluent, arising from a brown hypo- 

 thallus, prolonged within the sporangium to about half its 

 height. Capillitium of thick tubules, forming a dense net- 

 work of small meshes; the tubules stuffed with white 

 granules of lime. Spores irregularly globose, minutely 

 warted, dark reddish-brown, 12-15 mic. in diameter. 



Growing on old wood, leaves, grass, etc. Sporangium .4-. 7 

 mm. in height by .3-4 mm. in diameter, the stipe often 

 reduced to a mere point or cushion on the hypothallus, and 

 varying thence to nearly the length of the sporangium. The 

 sporangium is narrower than in the preceding species, and 

 the brown wall is usually without granules of lime. It is 

 Didymium curtisii Berk. Rostafinski and Massee both pre- 

 serve it distinct from >S. rubiginosum. 



