Description of the Figures. 355 



FIG. 292. Physarum sinuosum, entire plants after dehiscence, x 40. 



293. Section of same, x 50. 



294. Badhamia macrocarpa, sessile scattered form, x 50. 



295. Stipitate form of same, x 50. 



296. Spores and portion of oapillitium attached to sporangial wall of 

 same, x 350. 



297. Spore of same, x 1200. 



298. Craterinm leucocephalum, specimens showing the various stages 

 of dehiscence, x 50. 



299. Vertical medium section of same showing the irregular columella, 

 dense capillitium, and perforations in the wall, , x 100. 



300. Portion of wall of sporangium of same, seen from the inside, 

 showing the general crust of lime in the form of very minute 

 granules, the circular discs of . organic matter, a, and the 

 cavities from which the discs have been removed, b, x 400. 



301. One of the discs of organic matter removed from wall of same, 

 x 400. 



302. Enerthenema elegans, specimen from which the wall of the spor- 

 angium has been removed and the spores blown away, showing 

 the thin columella with its apical disc-like portion from which 

 the capillitium originates, a fragment of the basal portion of 

 sporangial wall still adhering to the stem is marked, a, x 50. 



303. Portion of capillitium and spores of same, x 350. 



304. Spore and portion of capillitium of same, x 1200. 



305. Craterium dictyospermum, x 50. 



306. Median vertical section of same, showing the columella and 

 capillitium, x 100. 



307. Craterium lilacinum, x 50. 



308. Spore of same x 1200. 



309. Craterium rubiginosum, X 50. 



310. Spore of same, x 1200. 



311. Reticularia lycoperdon, a. castaneum; nat. size. 



312. Spore of same, x 1200. 



313. Cliondrioderma Michelii, a, hypothallus, x 50. 



